{"cik":945699,"entityName":"IXYS CORP /DE/","facts":{"dei":{"EntityCommonStockSharesOutstanding":{"label":"Entity Common Stock, Shares Outstanding","description":"Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument.","units":{"shares":[{"end":"2011-07-28","val":31553092,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-10-27","val":31179402,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2012-01-26","val":31253875,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-05-25","val":31323538,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-07-27","val":31390682,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-10-24","val":31180672,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2013-01-24","val":30841192,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-05-23","val":30924735,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-07-25","val":31098966,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-10-23","val":31126466,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2014-01-30","val":31273100,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-05-23","val":31356319,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-07-28","val":31489600,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-10-23","val":31545600,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2015-01-23","val":31649158,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-05-21","val":31703282,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-07-23","val":31938482,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-10-28","val":31460311,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2016-01-29","val":31542215,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-05-23","val":31383024,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-07-26","val":31458652,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-10-27","val":31536752,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2017-01-26","val":31611390,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-05-23","val":32014315,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-07-27","val":32603143,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-10-26","val":32769103,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"EntityPublicFloat":{"label":"Entity Public Float","description":"The aggregate market value of the voting and non-voting common equity held by non-affiliates computed by reference to the price at which the common equity was last sold, or the average bid and asked price of such common equity, as of the last business day of the registrant's most recently completed second fiscal quarter.","units":{"USD":[{"end":"2011-09-30","val":267063363,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011Q3I"},{"end":"2012-09-28","val":239661863,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q3I"},{"end":"2013-09-30","val":236990635,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q3I"},{"end":"2014-09-30","val":261281622,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q3I"},{"end":"2015-09-30","val":274130959,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q3I"},{"end":"2016-09-30","val":302897030,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q3I"}]}}},"us-gaap":{"AccountsPayableCurrent":{"label":"Accounts Payable, Current","description":"Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).","units":{"USD":[{"end":"2011-03-31","val":16892000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-03-31","val":16892000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-03-31","val":16892000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2011-03-31","val":16892000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011Q1I"},{"end":"2011-06-30","val":16096000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":16723000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":20380000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-03-31","val":14427000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":14427000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":14427000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":14427000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":14427000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":15551000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":14215000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":10915000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":12822000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":12822000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":12822000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":12822000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":12822000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":12804000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":19461000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":13437000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":15684000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":15684000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":15684000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":15684000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":15684000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":16519000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":14659000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":10671000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":12675000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":12675000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":12675000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":12675000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":12675000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":13967000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":12753000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":15157000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":11416000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":11416000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":11416000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":11416000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":11416000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":12272000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":10913000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":11214000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":11409000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":11409000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":11409000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":10523000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":12397000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"AccountsReceivableGrossCurrent":{"label":"Accounts Receivable, before Allowance for Credit Loss, Current","description":"Amount, before allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.","units":{"USD":[{"end":"2015-03-31","val":43810000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":43810000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-12-31","val":38490000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":41219000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":41219000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":41219000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":41219000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":41219000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":43751000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":42412000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":40276000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":45856000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":45856000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":45856000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":46253000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":45929000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"AccountsReceivableNetCurrent":{"label":"Accounts Receivable, after Allowance for Credit Loss, Current","description":"Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.","units":{"USD":[{"end":"2011-03-31","val":55222000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-03-31","val":55222000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-03-31","val":55222000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2011-03-31","val":55222000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011Q1I"},{"end":"2011-06-30","val":58193000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":55707000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":42911000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-03-31","val":48420000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":48420000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":48420000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":48420000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":48420000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":45138000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":38130000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":31803000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":37752000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":37752000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":37752000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":37752000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":37752000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":40923000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":46406000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":39854000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":45707000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":45707000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":45707000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":45707000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":45707000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":46287000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":42419000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":37829000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":41042000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":41042000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":41042000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":41042000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":41042000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":41855000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":38865000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":36180000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":38440000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":38440000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":38440000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":38440000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":38440000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":41063000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":38997000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":36715000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":41167000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":41167000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":41167000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":42138000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":41745000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"AccruedIncomeTaxesCurrent":{"label":"Accrued Income Taxes, Current","description":"Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all currently due domestic and foreign income tax obligations.","units":{"USD":[{"end":"2013-03-31","val":0,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q1I"},{"end":"2013-09-30","val":259000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2014-03-31","val":0,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":0,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":0,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":0,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":283000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":2291000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":2589000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":2459000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":2459000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":2459000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":2459000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":2459000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":3434000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":3356000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":4378000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":2066000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":2066000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":2066000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":2066000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":2066000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":2690000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":4435000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":5896000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":3521000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":3521000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":3521000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"}]}},"AccruedIncomeTaxesNoncurrent":{"label":"Accrued Income Taxes, Noncurrent","description":"Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all domestic and foreign income tax obligations due beyond one year or the operating cycle, whichever is longer. Alternate captions include income taxes payable, noncurrent.","units":{"USD":[{"end":"2011-03-31","val":8934000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q1I"},{"end":"2011-12-31","val":8927000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-03-31","val":6456000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q1I"},{"end":"2012-03-31","val":6456000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":6456000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-06-30","val":6449000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":6470000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":6460000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"}]}},"AccruedLiabilitiesCurrent":{"label":"Accrued Liabilities, Current","description":"Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).","units":{"USD":[{"end":"2011-03-31","val":22938000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-03-31","val":22938000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-03-31","val":22938000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2011-03-31","val":22938000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011Q1I"},{"end":"2011-06-30","val":22882000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":25905000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":19769000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-03-31","val":22023000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":22023000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":22023000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":22023000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":22023000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":19559000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":17637000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":14792000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":16992000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":16992000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":16992000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":16992000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":16992000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":31716000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":34744000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":49689000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":50166000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":50166000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":50166000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":50166000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":50166000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":36898000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":36374000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":19480000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":19865000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":19865000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":19865000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":19865000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":19865000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":22983000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":23439000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":22142000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":21290000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":21290000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":21290000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":21290000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":21290000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":23575000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":24542000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":25208000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":25347000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":25347000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":25347000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":23539000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":25922000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment":{"label":"Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment","description":"Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.","units":{"USD":[{"end":"2012-03-31","val":114164000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2013-03-31","val":120032000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":120032000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2014-03-31","val":134264000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":134264000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2015-03-31","val":123717000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":123717000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2016-03-31","val":133289000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":133289000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2017-03-31","val":134124000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax":{"label":"AOCI, Debt Securities, Available-for-sale, Adjustment, after Tax","description":"Amount, after tax, of accumulated unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).","units":{"USD":[{"end":"2012-03-31","val":-68000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q1I"},{"end":"2012-03-31","val":-68000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":-68000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-06-30","val":-3000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":348000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":-893000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"}]}},"AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax":{"label":"Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax","description":"Amount, after tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit).","units":{"USD":[{"end":"2012-03-31","val":4314000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q1I"},{"end":"2012-03-31","val":4314000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":4314000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-06-30","val":4314000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":4314000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":4314000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"}]}},"AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax":{"label":"Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax","description":"Accumulated adjustment, net of tax, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains or losses.","units":{"USD":[{"end":"2012-03-31","val":6472000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q1I"},{"end":"2012-03-31","val":6472000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":6472000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-06-30","val":1372000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":3805000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":6126000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"}]}},"AccumulatedOtherComprehensiveIncomeLossNetOfTax":{"label":"Accumulated Other Comprehensive Income (Loss), Net of Tax","description":"Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.","units":{"USD":[{"end":"2011-03-31","val":7763000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-03-31","val":7763000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-03-31","val":7763000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2011-03-31","val":7763000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011Q1I"},{"end":"2011-06-30","val":9263000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":4361000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":437000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-03-31","val":2090000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":2090000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":2090000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":2090000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":2090000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":-2945000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":-161000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":919000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":-3093000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":-3093000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":-3093000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":-3093000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":-3093000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":-2080000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":2729000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":4692000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":5029000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":5029000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":5029000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":5029000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":5029000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":4442000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":-3728000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":-8223000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":-23088000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":-23088000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":-23088000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":-23088000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":-23088000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":-20513000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":-19557000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":-22615000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":-20266000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":-20266000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":-20266000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":-20266000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":-20266000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":-22916000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":-22553000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":-28634000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":-28545000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":-28545000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":-28545000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":-21676000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":-18006000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"AcquiredFiniteLivedIntangibleAssetAmount":{"label":"Acquired Finite-lived Intangible Asset, Amount (Deprecated 2013-01-31)","description":"The aggregate amount assigned to a major class of finite-lived intangible assets acquired either individually or as part of a group of assets (in either an asset acquisition or business combination). A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.","units":{"USD":[{"end":"2013-06-30","val":48649000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"}]}},"AdditionalPaidInCapital":{"label":"Additional Paid in Capital","description":"Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders. Includes adjustments to additional paid in capital. Some examples of such adjustments include recording the issuance of debt with a beneficial conversion feature and certain tax consequences of equity instruments awarded to employees. Use this element for the aggregate amount of additional paid-in capital associated with common and preferred stock. For additional paid-in capital associated with only common stock, use the element additional paid in capital, common stock. For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred stock.","units":{"USD":[{"end":"2011-03-31","val":190805000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-03-31","val":190805000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-03-31","val":190805000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2011-03-31","val":190805000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011Q1I"},{"end":"2011-06-30","val":193031000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":194181000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":196256000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-03-31","val":198283000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":198283000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":198283000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":198283000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":198283000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":199870000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":200907000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":202043000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":202599000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":202598000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":202598000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":202598000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":202598000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":203741000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":204411000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":205542000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":206290000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":206290000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":206290000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":206290000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":206290000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":207456000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":207638000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":208862000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":209707000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":209707000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":209707000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":209707000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":209707000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":210942000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":211978000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":213262000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":214045000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":214045000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":214045000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":214045000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":214045000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":215354000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":216228000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":217578000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":217355000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":217355000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":217355000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":217840000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":218286000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue":{"label":"APIC, Share-based Payment Arrangement, Increase for Cost Recognition","description":"Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":3160000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2011-03-31","val":3398000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":3398000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":3779000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":3779000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":3779000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":3451000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":3451000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":3451000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":2785000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":2785000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":2785000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":2867000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":2867000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":2867000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":3343000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":3343000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":3438000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"AdvertisingExpense":{"label":"Advertising Expense","description":"Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.","units":{"USD":[{"start":"2010-04-01","end":"2011-03-31","val":547000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":655000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":655000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":649000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":649000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":649000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":631000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":631000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":631000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":437000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":437000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":437000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":433000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":433000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":411000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"AllocatedShareBasedCompensationExpense":{"label":"Share-based Payment Arrangement, Expense","description":"Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.","units":{"USD":[{"start":"2011-04-01","end":"2011-06-30","val":784000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":1582000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":798000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2011-04-01","end":"2011-12-31","val":2713000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-10-01","end":"2011-12-31","val":1131000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2011Q4"},{"start":"2012-04-01","end":"2012-06-30","val":1095000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":1095000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":2131000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":2131000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":1036000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":1036000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":2857000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":2857000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":726000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-10-01","end":"2012-12-31","val":726000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4"},{"start":"2013-04-01","end":"2013-06-30","val":671000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":671000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":1341000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":1341000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":670000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":670000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":2033000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":2033000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":692000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":692000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":2785000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":681000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":681000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":1378000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-04-01","end":"2014-09-30","val":1378000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-07-01","end":"2014-09-30","val":697000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-07-01","end":"2014-09-30","val":697000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2014Q3"},{"start":"2014-04-01","end":"2014-12-31","val":2127000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":2127000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":749000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":749000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":2867000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":2867000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":988000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":988000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":1940000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":1940000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":951000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":951000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2015Q3"},{"start":"2015-04-01","end":"2015-12-31","val":2777000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":2777000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":838000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":838000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":3592000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":3592000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":855000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":855000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":1729000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":1729000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":874000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":874000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-04-01","end":"2016-12-31","val":2551000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":822000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4"},{"start":"2016-04-01","end":"2017-03-31","val":3438000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":907000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":2005000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":1098000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"}]}},"AllocatedShareBasedCompensationExpenseNetOfTax":{"label":"Share-based Payment Arrangement, Expense, after Tax","description":"Amount, after tax, of expense for award under share-based payment arrangement.","units":{"USD":[{"start":"2010-04-01","end":"2011-03-31","val":2162000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":502000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":1012000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":511000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2011-04-01","end":"2011-12-31","val":1899000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-10-01","end":"2011-12-31","val":792000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2011Q4"},{"start":"2011-04-01","end":"2012-03-31","val":2404000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":2404000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":712000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":712000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":1385000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":1385000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":673000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":673000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":1857000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":1857000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":472000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-10-01","end":"2012-12-31","val":472000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4"},{"start":"2012-04-01","end":"2013-03-31","val":2164000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":2164000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":2164000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":463000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":463000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":925000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":925000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":462000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":462000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":1321000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":1321000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":450000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":450000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":1714000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":1714000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":1714000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":470000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":443000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":896000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-04-01","end":"2014-09-30","val":896000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-07-01","end":"2014-09-30","val":453000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-07-01","end":"2014-09-30","val":453000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2014Q3"},{"start":"2014-04-01","end":"2014-12-31","val":1383000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":1383000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":487000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":487000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":1858000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":1858000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":1858000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":642000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":642000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":1261000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":1261000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":618000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":618000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2015Q3"},{"start":"2015-04-01","end":"2015-12-31","val":1805000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":1805000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":545000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":545000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":2932000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":2932000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":513000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":513000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":1037000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":1037000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":524000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":524000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-04-01","end":"2016-12-31","val":1530000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":493000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4"},{"start":"2016-04-01","end":"2017-03-31","val":2744000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":544000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":1203000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":659000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"}]}},"AllowanceForDoubtfulAccountsReceivableCurrent":{"label":"Accounts Receivable, Allowance for Credit Loss, Current","description":"Amount of allowance for credit loss on accounts receivable, classified as current.","units":{"USD":[{"end":"2010-03-31","val":3466000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010Q1I"},{"end":"2011-03-31","val":3478000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-03-31","val":3478000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-03-31","val":3478000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2011-03-31","val":3478000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2011-03-31","val":3478000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2011-03-31","val":3478000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011Q1I"},{"end":"2011-06-30","val":3447000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":3145000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":3020000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-03-31","val":2473000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":2473000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":2473000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":2473000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":2473000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2012-03-31","val":2473000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2012-03-31","val":2473000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012Q1I"},{"end":"2012-06-30","val":2744000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":3023000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":2435000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":2656000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":2656000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":2656000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":2656000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":2656000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2013-03-31","val":2656000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2013-03-31","val":2656000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013Q1I"},{"end":"2013-06-30","val":2609000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":3419000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":3328000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":3013000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":3013000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":3013000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":3013000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":3013000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2014-03-31","val":3013000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2014-03-31","val":3013000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014Q1I"},{"end":"2014-06-30","val":3055000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":4039000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":2953000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":2768000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":2768000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":2768000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":2768000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":2768000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2015-03-31","val":2768000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":2428000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":2186000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":2310000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":2779000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":2779000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":2779000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":2779000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":2779000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":2688000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":3415000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":3561000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":4689000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":4689000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":4689000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":4115000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":4184000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"AmortizationOfIntangibleAssets":{"label":"Amortization of Intangible Assets","description":"The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":1839000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-06-30","val":1923000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-09-30","val":3846000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":1923000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2010-04-01","end":"2010-12-31","val":5476000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-10-01","end":"2010-12-31","val":1630000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2010Q4"},{"start":"2010-04-01","end":"2011-03-31","val":6937000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":6937000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":642000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":642000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":1245000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-04-01","end":"2011-09-30","val":1245000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":603000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":603000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2011-04-01","end":"2011-12-31","val":1885000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":1885000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-10-01","end":"2011-12-31","val":640000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-10-01","end":"2011-12-31","val":640000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2011Q4"},{"start":"2011-04-01","end":"2012-03-31","val":2524000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":2524000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":2524000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":640000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":640000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":1124000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":1124000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":484000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":484000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":1683000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":1683000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":559000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-10-01","end":"2012-12-31","val":559000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4"},{"start":"2012-04-01","end":"2013-03-31","val":2244000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":2244000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":2244000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":246000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":246000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":3671000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":3671000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":3425000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":3425000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":7096000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":7096000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":3425000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":3425000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":10521000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":10521000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":10521000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":1707000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":1707000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":3126000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":3126000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":1419000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-07-01","end":"2014-09-30","val":1419000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2014Q3"},{"start":"2014-04-01","end":"2014-12-31","val":4545000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":4545000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":1419000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":1419000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":5978000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":5978000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":5978000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":1579000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":1579000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":2953000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":2953000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":1374000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":1374000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2015Q3"},{"start":"2015-04-01","end":"2015-12-31","val":4282000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":4282000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":1329000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":1329000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":5555000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":5555000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":1017000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":1017000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":1713000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":1713000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":696000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":696000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-04-01","end":"2016-12-31","val":2463000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":750000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4"},{"start":"2016-04-01","end":"2017-03-31","val":3068000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":596000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":1193000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":597000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"}]}},"AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount":{"label":"Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount","description":"Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.","units":{"shares":[{"start":"2010-04-01","end":"2011-03-31","val":2003579,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":619173,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":738137,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":606173,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2011-04-01","end":"2011-12-31","val":945787,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-10-01","end":"2011-12-31","val":1525471,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2011Q4"},{"start":"2011-04-01","end":"2012-03-31","val":1098314,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":1098314,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":1682804,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":1682804,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":2018330,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":2018330,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":2779738,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":2779738,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":2627911,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":2627911,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":3355738,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-10-01","end":"2012-12-31","val":3355738,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4"},{"start":"2012-04-01","end":"2013-03-31","val":2660163,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":2660163,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":2660163,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":2657320,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":2657320,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":2663782,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":2663782,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":2761044,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":2761044,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":2780263,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":2780263,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":3002055,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":3002055,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":2483106,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":2483106,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":2483106,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":2630332,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":2630332,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":2507755,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":2507755,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":2318679,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-07-01","end":"2014-09-30","val":2318679,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2014Q3"},{"start":"2014-04-01","end":"2014-12-31","val":2557883,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":2557883,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":2687092,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":2687092,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":2357772,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":2357772,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":2357772,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":868702,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":868702,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":1436546,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":1436546,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":2067109,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":2067109,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2015Q3"},{"start":"2015-04-01","end":"2015-12-31","val":1620807,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":1620807,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":2047000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":2047000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":1943420,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":1943420,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":2889670,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":2889670,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":2984213,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":2984213,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":3040511,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":3040511,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-04-01","end":"2016-12-31","val":3108615,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":3299065,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4"},{"start":"2016-04-01","end":"2017-03-31","val":2945238,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":579033,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":339224,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":558000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"}]}},"AssetImpairmentCharges":{"label":"Asset Impairment Charges","description":"Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":0,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2011-03-31","val":702000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":702000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":6448000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":6448000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":6448000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":0,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":0,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":0,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013"}]}},"Assets":{"label":"Assets","description":"Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.","units":{"USD":[{"end":"2011-03-31","val":325189000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-03-31","val":325189000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-03-31","val":325189000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2011-03-31","val":325189000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011Q1I"},{"end":"2011-06-30","val":337790000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":341861000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":340381000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-03-31","val":343910000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":343910000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":343910000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":343910000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":343910000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":341755000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":342296000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":334271000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":333476000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":333476000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":333476000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":333476000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":333476000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":366385000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":384411000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":381055000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":383182000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":383182000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":383182000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":383182000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":383182000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":373545000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":395899000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":375598000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":373855000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":373855000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":373855000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":373855000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":373855000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":391384000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":387993000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":421236000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":422701000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":422701000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":422701000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":422701000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":422701000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":417636000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":422700000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":422081000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":433979000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":433979000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":433979000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":449387000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":462978000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"AssetsCurrent":{"label":"Assets, Current","description":"Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.","units":{"USD":[{"end":"2011-03-31","val":226005000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-03-31","val":226005000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-03-31","val":226005000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2011-03-31","val":226005000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011Q1I"},{"end":"2011-06-30","val":237539000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":241269000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":239538000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-03-31","val":249157000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":249157000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":249157000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":249157000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":249157000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":247534000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":247943000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":240037000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":243506000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":243506000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":243506000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":243506000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":243506000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":228893000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":247938000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":248160000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":255005000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":255005000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":255005000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":255005000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":255005000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":244953000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":272658000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":251070000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":254967000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":254967000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":254967000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":247890000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":247890000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":254155000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":254050000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":284680000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":288330000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":288330000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":288330000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":288330000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":288330000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":282412000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":286960000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":289631000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":303814000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":303814000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":303814000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":313427000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":315068000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"AvailableForSaleDebtSecuritiesAmortizedCostBasis":{"label":"Debt Securities, Available-for-sale, Amortized Cost","description":"Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).","units":{"USD":[{"end":"2017-03-31","val":503000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-09-30","val":9100000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"AvailableForSaleSecuritiesChangeInNetUnrealizedHoldingGainLoss":{"label":"Available-for-sale Securities, Change in Net Unrealized Holding Gain (Loss) before Taxes (Deprecated 2018-01-31)","description":"This item represents the pretax change in net unrealized holding gain (loss) on available-for-sale securities that has been included in accumulated other comprehensive income, a separate component of shareholders' equity, during the period.","units":{"USD":[{"start":"2014-04-01","end":"2015-03-31","val":32000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014"}]}},"AvailableForSaleSecuritiesChangeInNetUnrealizedHoldingGainLossNetOfTax":{"label":"Available-for-sale Securities, Change in Net Unrealized Holding Gain (Loss), Net of Tax (Deprecated 2018-01-31)","description":"The change in unrealized holding gain (loss), net of tax, on available-for-sale securities included in a separate component of shareholders' equity during the period.","units":{"USD":[{"start":"2011-04-01","end":"2012-03-31","val":-68000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":60000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":60000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":325000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":325000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":7000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":7000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":-82000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":-82000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":-219000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses":{"label":"Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Loss (Deprecated 2018-01-31)","description":"Amount of unrealized loss on securities classified as available-for-sale that have been in a loss position for twelve months or longer.","units":{"USD":[{"start":"2012-04-01","end":"2013-03-31","val":8000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":9000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":9000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":42000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":15000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":143000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":143000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":47000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLosses":{"label":"Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss (Deprecated 2018-01-31)","description":"Amount of unrealized loss on securities classified as available-for-sale.","units":{"USD":[{"start":"2012-04-01","end":"2013-03-31","val":17000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":9000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":9000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":42000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":42000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":172000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":172000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":599000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue":{"label":"Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value","description":"This item represents the aggregate fair value of investments in debt and equity securities in an unrealized loss position which are categorized neither as held-to-maturity nor trading securities.","units":{"USD":[{"end":"2012-03-31","val":386000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2013-03-31","val":290000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":290000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2014-03-31","val":307000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":307000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2015-03-31","val":286000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":286000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2016-03-31","val":1513000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":1513000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2017-03-31","val":732000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses":{"label":"Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss (Deprecated 2018-01-31)","description":"Amount of unrealized loss on investments in available-for-sale securities that have been in a loss position for less than twelve months.","units":{"USD":[{"start":"2012-04-01","end":"2013-03-31","val":9000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":0,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":0,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":0,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":27000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":29000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":29000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":552000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue":{"label":"Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value","description":"This item represents the aggregate fair value of investments in debt and equity securities categorized neither as held-to-maturity nor trading securities that have been in a continuous unrealized loss position for less than twelve months.","units":{"USD":[{"end":"2012-03-31","val":57000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2013-03-31","val":27000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":27000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2014-03-31","val":0,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":0,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2015-03-31","val":0,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":243000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2016-03-31","val":581000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":581000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2017-03-31","val":469000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue":{"label":"Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value","description":"This item represents the aggregate fair value of investments in debt and equity securities categorized neither as held-to-maturity nor trading securities that have been in a continuous unrealized loss position for twelve months or longer.","units":{"USD":[{"end":"2012-03-31","val":329000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2013-03-31","val":263000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":263000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2014-03-31","val":307000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":307000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2015-03-31","val":286000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":43000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2016-03-31","val":932000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":932000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2017-03-31","val":263000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"AvailableForSaleSecuritiesDebtSecuritiesNoncurrent":{"label":"Debt Securities, Available-for-sale, Noncurrent","description":"Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as noncurrent.","units":{"USD":[{"end":"2017-03-31","val":503000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-09-30","val":9063000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"AvailableForSaleSecuritiesEquitySecuritiesNoncurrent":{"label":"Available-for-sale Securities, Equity Securities, Noncurrent","description":"Equity securities categorized neither as held-to-maturity nor trading which are intended be sold more than one year from the balance sheet date or operating cycle, if longer.","units":{"USD":[{"end":"2017-03-31","val":1771000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-09-30","val":1649000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"AvailableForSaleSecuritiesFairValueDisclosure":{"label":"Available-for-sale Securities, Fair Value Disclosure (Deprecated 2013-01-31)","description":"This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale.","units":{"USD":[{"end":"2012-03-31","val":1064000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q1I"},{"end":"2012-03-31","val":1064000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":1064000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-06-30","val":4799000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":5939000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":4013000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"}]}},"AvailableForSaleSecuritiesGrossRealizedGainLossNet":{"label":"Available-for-sale Securities, Gross Realized Gain (Loss)","description":"This item represents the difference between the gross realized gains and losses realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. Additionally, this item would include any losses recognized for other than temporary impairments (OTTI) of the subject investments in debt and equity securities.","units":{"USD":[{"start":"2015-04-01","end":"2016-03-31","val":-1000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":201000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"AvailableForSaleSecuritiesGrossRealizedGains":{"label":"Available-for-sale Securities, Gross Realized Gains","description":"This item represents the gross profit realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities.","units":{"USD":[{"start":"2012-04-01","end":"2013-03-31","val":109000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":155000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":30000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014"}]}},"AvailableforsaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses2":{"label":"Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses (Deprecated 2013-01-31)","description":"Amount of the excess of amortized cost basis over fair value of securities that have been in a loss position for twelve months or longer for securities which are categorized neither as held-to-maturity nor trading securities.","units":{"USD":[{"end":"2012-03-31","val":149000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2013-03-31","val":8000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"}]}},"AvailableforsaleSecuritiesContinuousUnrealizedLossPositionAggregateLosses2":{"label":"Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses (Deprecated 2013-01-31)","description":"Amount of the excess of amortized cost basis over fair value of securities in a loss position and categorized neither as held-to-maturity nor trading securities.","units":{"USD":[{"end":"2012-03-31","val":149000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2013-03-31","val":17000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"}]}},"AvailableforsaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses2":{"label":"Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses (Deprecated 2013-01-31)","description":"Amount of the excess of amortized cost basis over fair value of securities that have been in a loss position for less than twelve months for securities categorized neither as held-to-maturity nor trading securities.","units":{"USD":[{"end":"2012-03-31","val":0,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2013-03-31","val":9000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"}]}},"BusinessAcquisitionCostOfAcquiredEntityPurchasePrice":{"label":"Business Acquisition, Cost of Acquired Entity, Purchase Price (Deprecated 2013-01-31)","description":"The total cost of the acquired entity including the cash paid to shareholders of acquired entities, fair value of debt and equity securities issued to shareholders of acquired entities, the fair value of the liabilities assumed, and direct costs of the acquisition.","units":{"USD":[{"end":"2013-03-31","val":50000000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"},{"end":"2013-06-30","val":50000000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"}]}},"BusinessAcquisitionCostOfAcquiredEntityTransactionCosts":{"label":"Business Acquisition, Transaction Costs","description":"Amount of direct costs of the business combination including legal, accounting, and other costs incurred to consummate the business acquisition.","units":{"USD":[{"end":"2013-06-30","val":201000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"}]}},"BusinessAcquisitionProFormaEarningsPerShareBasic":{"label":"Business Acquisition, Pro Forma Earnings Per Share, Basic","description":"The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.","units":{"USD/shares":[{"start":"2012-04-01","end":"2012-09-30","val":0.38,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":0.13,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":0.46,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":0.08,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4"},{"start":"2012-04-01","end":"2013-03-31","val":0.59,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":0.59,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":0.14,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":0.33,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":0.33,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":0.18,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":0.18,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":0.42,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":0.42,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":0.09,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":0.09,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":0.49,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":0.49,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":0.49,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"}]}},"BusinessAcquisitionProFormaEarningsPerShareDiluted":{"label":"Business Acquisition, Pro Forma Earnings Per Share, Diluted","description":"The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.","units":{"USD/shares":[{"start":"2012-04-01","end":"2012-09-30","val":0.37,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":0.13,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":0.45,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":0.08,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4"},{"start":"2012-04-01","end":"2013-03-31","val":0.57,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":0.57,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":0.13,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":0.32,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":0.32,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":0.18,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":0.18,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":0.41,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":0.41,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":0.09,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":0.09,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":0.48,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":0.48,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":0.48,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"}]}},"BusinessAcquisitionPurchasePriceAllocationAmortizableIntangibleAssets":{"label":"Business Acquisition, Purchase Price Allocation, Amortizable Intangible Assets (Deprecated 2013-01-31)","description":"The amount of acquisition cost of a business combination allocated to an identifiable intangible asset that will be amortized.","units":{"USD":[{"end":"2013-06-30","val":48649000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"}]}},"BusinessAcquisitionPurchasePriceAllocationAssetsAcquired":{"label":"Business Acquisition, Purchase Price Allocation, Assets Acquired (Deprecated 2013-01-31)","description":"The amount of acquisition cost of a business combination allocated to assets acquired.","units":{"USD":[{"end":"2013-06-30","val":49835000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"}]}},"BusinessAcquisitionPurchasePriceAllocationCurrentAssetsFinishedGoods":{"label":"Business Acquisition, Purchase Price Allocation, Current Assets, Finished Goods (Deprecated 2013-01-31)","description":"The amount of acquisition cost of a business combination allocated to finished goods inventory.","units":{"USD":[{"end":"2013-06-30","val":1150000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"}]}},"BusinessAcquisitionPurchasePriceAllocationEquipment":{"label":"Business Acquisition, Purchase Price Allocation, Equipment (Deprecated 2013-01-31)","description":"The amount of acquisition cost of a business combination allocated to equipment used in the normal course of business, not including equipment that is held-for-sale.","units":{"USD":[{"end":"2013-06-30","val":36000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"}]}},"BusinessAcquisitionPurchasePriceAllocationGoodwillAmount":{"label":"Business Acquisition, Purchase Price Allocation, Goodwill Amount (Deprecated 2013-01-31)","description":"Amount of goodwill arising from a business combination, which is the excess of the cost of the acquired entity over the amounts assigned to assets acquired and liabilities assumed.","units":{"USD":[{"end":"2013-06-30","val":165000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"}]}},"BusinessAcquisitionsProFormaNetIncomeLoss":{"label":"Business Acquisition, Pro Forma Net Income (Loss)","description":"The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.","units":{"USD":[{"start":"2012-04-01","end":"2012-09-30","val":11860000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":4059000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":14247000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":2386000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4"},{"start":"2012-04-01","end":"2013-03-31","val":18189,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":18189,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":4234000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":10156000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":10156000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":5721000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":5721000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":12972000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":12972000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":2817000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":2817000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":15364,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":15364,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":15364000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"}]}},"BusinessAcquisitionsProFormaRevenue":{"label":"Business Acquisition, Pro Forma Revenue","description":"The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.","units":{"USD":[{"start":"2012-04-01","end":"2012-09-30","val":193814000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":91127000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":277685000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":83871000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4"},{"start":"2012-04-01","end":"2013-03-31","val":369086,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":369086,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":95084000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":180985000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":180985000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":85901000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":85901000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":270333000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":270333000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":89348000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":89348000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":360228,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":360228,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":360228000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"}]}},"BusinessCombinationAcquisitionRelatedCosts":{"label":"Business Combination, Acquisition Related Costs","description":"This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.","units":{"USD":[{"start":"2013-04-01","end":"2013-09-30","val":403000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-12-31","val":403000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"}]}},"BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual":{"label":"Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual","description":"This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.","units":{"USD":[{"start":"2013-04-01","end":"2013-09-30","val":7200000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":7200000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":24500000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":17300000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4"}]}},"BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentIntangibles":{"label":"Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Intangibles","description":"This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to intangibles acquired in connection with a business combination for which the initial accounting was incomplete.","units":{"USD":[{"start":"2013-04-01","end":"2013-09-30","val":-25000000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-12-31","val":-25000000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"}]}},"BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets":{"label":"Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets","description":"Amount of assets acquired at the acquisition date.","units":{"USD":[{"end":"2013-06-27","val":24836000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q2I"},{"end":"2013-06-27","val":24836000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"}]}},"BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles":{"label":"Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles","description":"The amount of identifiable intangible assets recognized as of the acquisition date.","units":{"USD":[{"end":"2013-06-27","val":24000000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q2I"},{"end":"2013-06-27","val":24000000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"}]}},"BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory":{"label":"Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory","description":"The amount of inventory recognized as of the acquisition date.","units":{"USD":[{"end":"2013-06-27","val":800000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q2I"},{"end":"2013-06-27","val":800000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"}]}},"BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment":{"label":"Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment","description":"The amount of property, plant, and equipment recognized as of the acquisition date.","units":{"USD":[{"end":"2013-06-27","val":36000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q2I"},{"end":"2013-06-27","val":36000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"}]}},"BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet":{"label":"Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net","description":"Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed.","units":{"USD":[{"end":"2013-06-27","val":50000000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q2I"},{"end":"2013-06-27","val":50000000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"}]}},"BusinessExitCosts":{"label":"Business Exit Costs (Deprecated 2013-01-31)","description":"The charge against earnings in the period, comprised of costs incurred associated with an exit or disposal activity other than for a discontinued operations as defined under generally accepted accounting principles. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.","units":{"USD":[{"start":"2010-04-01","end":"2011-03-31","val":659000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"}]}},"CapitalLeasedAssetsGross":{"label":"Capital Leased Assets, Gross","description":"Amount before accumulated depreciation of leased physical assets used in the normal conduct of business to produce goods and services.","units":{"USD":[{"end":"2012-03-31","val":41599000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2013-03-31","val":40010000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":40010000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2014-03-31","val":41931000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":41931000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2015-03-31","val":33222000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"}]}},"CapitalLeaseObligationsCurrent":{"label":"Capital Lease Obligations, Current","description":"Amount of capital lease obligation due within one year or the normal operating cycle, if longer.","units":{"USD":[{"end":"2011-03-31","val":2860000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-03-31","val":2860000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-03-31","val":2860000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2011-03-31","val":2860000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011Q1I"},{"end":"2011-06-30","val":3060000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":3037000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":2840000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-03-31","val":2873000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":2873000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":2873000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":2873000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":2873000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":2573000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":2535000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":2506000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":2458000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":2458000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":2458000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":2458000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":2458000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":2522000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":2650000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":2727000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":2468000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":2468000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":2468000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":2468000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":2468000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":2133000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":1527000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":931000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":464000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":464000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":464000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":464000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":464000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":152000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":55000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":19000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"}]}},"CapitalLeaseObligationsNoncurrent":{"label":"Capital Lease Obligations, Noncurrent","description":"Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal, through the balance sheet date and due to be paid more than one year (or one operating cycle, if longer) after the balance sheet date.","units":{"USD":[{"end":"2011-03-31","val":5021000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-03-31","val":5021000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-03-31","val":5021000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2011-03-31","val":5021000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011Q1I"},{"end":"2011-06-30","val":5872000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":6284000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":5587000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-03-31","val":5651000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":5651000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":5651000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":5651000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":5651000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":4735000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":4229000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":3710000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":2974000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":2974000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":2974000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":2974000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":2974000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":2377000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":1798000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":1137000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":723000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":723000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":723000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":723000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":723000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":361000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":159000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":73000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":0,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"}]}},"CapitalLeasesFutureMinimumPaymentsDue":{"label":"Capital Leases, Future Minimum Payments Due","description":"Amount of minimum lease payments for capital leases.","units":{"USD":[{"end":"2013-03-31","val":5695000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"},{"end":"2014-03-31","val":3278000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2014Q1I"},{"end":"2015-03-31","val":468000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"}]}},"CapitalLeasesFutureMinimumPaymentsDueCurrent":{"label":"Capital Leases, Future Minimum Payments Due, Next Twelve Months","description":"Amount of minimum lease payments for capital leases due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.","units":{"USD":[{"end":"2013-03-31","val":2640000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"},{"end":"2014-03-31","val":2547000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2014Q1I"},{"end":"2015-03-31","val":468000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"}]}},"CapitalLeasesFutureMinimumPaymentsDueInFiveYears":{"label":"Capital Leases, Future Minimum Payments Due in Five Years","description":"Amount of minimum lease payments for capital leases due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.","units":{"USD":[{"end":"2013-03-31","val":0,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"},{"end":"2014-03-31","val":0,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2014Q1I"},{"end":"2015-03-31","val":0,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"}]}},"CapitalLeasesFutureMinimumPaymentsDueInFourYears":{"label":"Capital Leases, Future Minimum Payments Due in Four Years","description":"Amount of minimum lease payments for capital leases due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.","units":{"USD":[{"end":"2013-03-31","val":0,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"},{"end":"2014-03-31","val":0,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2014Q1I"},{"end":"2015-03-31","val":0,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"}]}},"CapitalLeasesFutureMinimumPaymentsDueInThreeYears":{"label":"Capital Leases, Future Minimum Payments Due in Three Years","description":"Amount of minimum lease payments for capital leases due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.","units":{"USD":[{"end":"2013-03-31","val":681000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"},{"end":"2014-03-31","val":0,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2014Q1I"},{"end":"2015-03-31","val":0,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"}]}},"CapitalLeasesFutureMinimumPaymentsDueInTwoYears":{"label":"Capital Leases, Future Minimum Payments Due in Two Years","description":"Amount of minimum lease payments for capital leases due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.","units":{"USD":[{"end":"2013-03-31","val":2374000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"},{"end":"2014-03-31","val":731000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2014Q1I"},{"end":"2015-03-31","val":0,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"}]}},"CapitalLeasesFutureMinimumPaymentsDueThereafter":{"label":"Capital Leases, Future Minimum Payments Due Thereafter","description":"Amount of minimum lease payments for capital leases due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.","units":{"USD":[{"end":"2013-03-31","val":0,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"},{"end":"2014-03-31","val":0,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2014Q1I"},{"end":"2015-03-31","val":0,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"}]}},"CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments":{"label":"Capital Leases, Future Minimum Payments, Interest Included in Payments","description":"Amount necessary to reduce net minimum lease payments to present value for capital leases.","units":{"USD":[{"end":"2013-03-31","val":263000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"},{"end":"2014-03-31","val":87000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2014Q1I"},{"end":"2015-03-31","val":4000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"}]}},"CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments":{"label":"Capital Leases, Future Minimum Payments, Present Value of Net Minimum Payments","description":"Present value of minimum lease payments for capital leases net of executory costs, including amounts paid by the lessee to the lessor for insurance, maintenance and taxes.","units":{"USD":[{"end":"2013-03-31","val":5432000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"},{"end":"2014-03-31","val":3191000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2014Q1I"},{"end":"2015-03-31","val":464000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"}]}},"CashAcquiredFromAcquisition":{"label":"Cash Acquired from Acquisition","description":"The cash inflow associated with the acquisition of business during the period (for example, cash that was held by the acquired business).","units":{"USD":[{"start":"2017-04-01","end":"2017-09-30","val":69000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"}]}},"CashAndCashEquivalentsAtCarryingValue":{"label":"Cash and Cash Equivalents, at Carrying Value","description":"Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.","units":{"USD":[{"end":"2009-03-31","val":55441000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009Q1I"},{"end":"2010-03-31","val":60524000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2010-03-31","val":60524000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2010-03-31","val":60524000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2010-03-31","val":60524000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2010-03-31","val":60524000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010Q1I"},{"end":"2010-06-30","val":57423000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2I"},{"end":"2010-09-30","val":65376000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3I"},{"end":"2010-12-31","val":68956000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2010Q4I"},{"end":"2011-03-31","val":75406000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-03-31","val":75406000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-03-31","val":75406000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2011-03-31","val":75406000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2011-03-31","val":75406000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2011-03-31","val":75406000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2011-03-31","val":75406000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2011-03-31","val":75406000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2011-03-31","val":75406000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011Q1I"},{"end":"2011-06-30","val":87062000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-06-30","val":87062000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":90086000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-09-30","val":90086000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3I"},{"end":"2011-12-31","val":92631000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2011-12-31","val":92631000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2011Q4I"},{"end":"2012-03-31","val":98604000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":98604000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":98604000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":98604000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":98604000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2012-03-31","val":98604000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2012-03-31","val":98604000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2012-03-31","val":98604000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2012-03-31","val":98604000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2012-03-31","val":98604000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012Q1I"},{"end":"2012-06-30","val":102831000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-06-30","val":102831000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2I"},{"end":"2012-09-30","val":104687000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-09-30","val":104687000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3I"},{"end":"2012-12-31","val":106635000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-12-31","val":106635000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4I"},{"end":"2013-03-31","val":107116000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":107116000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":107116000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":107116000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":107116000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2013-03-31","val":107116000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2013-03-31","val":107116000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2013-03-31","val":107116000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2013-03-31","val":107116000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2013-03-31","val":107116000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013Q1I"},{"end":"2013-06-30","val":85829000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-06-30","val":85829000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":94903000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-09-30","val":94903000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3I"},{"end":"2013-12-31","val":98807000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-12-31","val":98807000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4I"},{"end":"2014-03-31","val":98438000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":98438000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":98438000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":98438000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":98438000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2014-03-31","val":98438000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2014-03-31","val":98438000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2014-03-31","val":98438000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2014-03-31","val":98438000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":90159000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-06-30","val":90159000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2I"},{"end":"2014-09-30","val":124944000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-09-30","val":124944000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2014Q3I"},{"end":"2014-12-31","val":112989000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-12-31","val":112989000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":121164000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":121164000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":121164000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":121164000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":121164000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2015-03-31","val":121164000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2015-03-31","val":121164000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2015Q1I"},{"end":"2015-06-30","val":118216000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-06-30","val":118216000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2I"},{"end":"2015-09-30","val":116851000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-09-30","val":116851000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2015Q3I"},{"end":"2015-12-31","val":154238000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":155806000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":155806000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":155806000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":155806000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":155806000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":151393000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":153804000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":158493000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":167904000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":167904000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":167904000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":171010000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":168771000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"CashAndCashEquivalentsPeriodIncreaseDecrease":{"label":"Cash and Cash Equivalents, Period Increase (Decrease)","description":"Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":5083000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-06-30","val":-3101000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-09-30","val":4852000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2010-04-01","end":"2010-12-31","val":8432000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-04-01","end":"2011-03-31","val":14882000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":14882000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":11656000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":11656000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":14680000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-04-01","end":"2011-09-30","val":14680000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-04-01","end":"2011-12-31","val":17225000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":17225000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-04-01","end":"2012-03-31","val":23198000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":23198000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":23198000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":4227000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":4227000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":6083000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":6083000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-04-01","end":"2012-12-31","val":8031000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":8031000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-04-01","end":"2013-03-31","val":8512000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":8512000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":8512000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":-21287000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":-21287000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":-12213000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":-12213000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-04-01","end":"2013-12-31","val":-8309000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":-8309000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-04-01","end":"2014-03-31","val":-8678000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":-8678000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":-8678000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":-8279000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":-8279000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":26506000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":26506000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-04-01","end":"2014-12-31","val":14551000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":14551000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":22726000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":22726000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":22655000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":-2948000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":-2948000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":-4313000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":-4313000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-04-01","end":"2015-12-31","val":33074000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":33530000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-04-01","end":"2016-03-31","val":34642000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":34653000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":-4413000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":-4418000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":-2002000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":-2005000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-04-01","end":"2016-12-31","val":3719000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-04-01","end":"2017-03-31","val":13151000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":3198000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":1007000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"}]}},"CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents":{"label":"Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents","description":"Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.","units":{"USD":[{"end":"2014-03-31","val":98775000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014Q1I"},{"end":"2015-03-31","val":121430000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015Q1I"},{"end":"2016-03-31","val":156083000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2016-03-31","val":156083000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2016-03-31","val":156083000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q1I"},{"end":"2016-06-30","val":151665000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2I"},{"end":"2016-09-30","val":154078000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3I"},{"end":"2017-03-31","val":169234000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":169234000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":169234000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":172432000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":170241000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"CommitmentsAndContingencies":{"label":"Commitments and Contingencies","description":"Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur.","units":{"USD":[{"end":"2011-03-31","val":0,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q1I"},{"end":"2011-12-31","val":0,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"}]}},"CommonStockDividendsPerShareCashPaid":{"label":"Common Stock, Dividends, Per Share, Cash Paid","description":"Aggregate dividends paid during the period for each share of common stock outstanding.","units":{"USD/shares":[{"start":"2010-04-01","end":"2011-03-31","val":0,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-12-31","val":0,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-10-01","end":"2011-12-31","val":0,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2011Q4"},{"start":"2011-04-01","end":"2012-03-31","val":0,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":0,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":0,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":0,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":0,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":0.03,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":0.03,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":0.03,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-10-01","end":"2012-12-31","val":0.03,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":0.03,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2012Q4"},{"start":"2012-04-01","end":"2013-03-31","val":0.06,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":0.06,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":0.06,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":0.03,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":0.03,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":0.06,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":0.06,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":0.03,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":0.03,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":0.09,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":0.09,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":0.03,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":0.03,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":0.12,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":0.12,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":0.12,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":0.03,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":0.03,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":0.065,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":0.065,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":0.035,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-07-01","end":"2014-09-30","val":0.035,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2014Q3"},{"start":"2014-04-01","end":"2014-12-31","val":0.1,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":0.1,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":0.035,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":0.035,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":0.14,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":0.135,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":0.135,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":0.035,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":0.035,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":0.075,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":0.075,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":0.04,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":0.04,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2015Q3"},{"start":"2015-04-01","end":"2015-12-31","val":0.115,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":0.115,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":0.04,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":0.04,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":0.155,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":0.155,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":0.04,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":0.04,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":0.04,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":0.04,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-04-01","end":"2016-12-31","val":0.04,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-04-01","end":"2017-03-31","val":0.04,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"CommonStockDividendsPerShareDeclared":{"label":"Common Stock, Dividends, Per Share, Declared","description":"Aggregate dividends declared during the period for each share of common stock outstanding.","units":{"USD/shares":[{"start":"2012-04-01","end":"2013-03-31","val":0.03,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012"}]}},"CommonStockParOrStatedValuePerShare":{"label":"Common Stock, Par or Stated Value Per Share","description":"Face amount or stated value per share of common stock.","units":{"USD/shares":[{"end":"2011-03-31","val":0.01,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-03-31","val":0.01,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-03-31","val":0.01,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2011-03-31","val":0.01,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011Q1I"},{"end":"2011-06-30","val":0.01,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":0.01,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":0.01,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-03-31","val":0.01,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":0.01,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":0.01,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":0.01,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":0.01,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":0.01,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":0.01,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":0.01,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":0.01,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":0.01,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":0.01,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":0.01,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":0.01,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":0.01,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":0.01,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":0.01,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":0.01,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":0.01,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":0.01,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":0.01,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":0.01,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":0.01,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":0.01,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":0.01,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":0.01,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":0.01,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":0.01,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":0.01,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":0.01,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":0.01,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":0.01,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":0.01,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":0.01,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":0.01,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":0.01,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":0.01,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":0.01,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":0.01,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":0.01,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":0.01,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":0.01,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":0.01,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":0.01,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":0.01,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":0.01,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"CommonStockSharesAuthorized":{"label":"Common Stock, Shares Authorized","description":"The maximum number of common shares permitted to be issued by an entity's charter and bylaws.","units":{"shares":[{"end":"2011-03-31","val":80000000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-03-31","val":80000000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-03-31","val":80000000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2011-03-31","val":80000000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011Q1I"},{"end":"2011-06-30","val":80000000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":80000000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":80000000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-03-31","val":80000000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":80000000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":80000000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":80000000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":80000000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":80000000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":80000000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":80000000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":80000000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":80000000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":80000000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":80000000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":80000000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":80000000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":80000000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":80000000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":80000000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":80000000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":80000000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":80000000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":80000000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":80000000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":80000000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":80000000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":80000000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":80000000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":80000000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":80000000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":80000000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":80000000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":80000000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":80000000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":80000000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":80000000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":80000000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":80000000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":80000000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":80000000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":80000000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":80000000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":80000000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":80000000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":80000000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":80000000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":80000000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"CommonStockSharesIssued":{"label":"Common Stock, Shares, Issued","description":"Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.","units":{"shares":[{"end":"2011-03-31","val":37352509,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-03-31","val":37352509,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-03-31","val":37352509,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2011-03-31","val":37352509,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011Q1I"},{"end":"2011-06-30","val":37538247,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":37648768,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":37767447,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-03-31","val":37805697,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":37805697,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":37805697,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":37805697,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":37805697,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":37862045,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":37861622,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":37921213,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":37921213,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":37921213,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":37921213,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":37921213,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":37921213,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":37973275,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":37973275,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":38016909,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":38016909,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":38016909,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":38016909,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":38016909,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":38016909,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":38067326,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":38067326,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":38116884,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":38116884,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":38116884,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":38116884,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":38116884,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":38116884,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":38168708,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":38168708,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":38214158,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":38214158,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":38214158,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":38214158,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":38214158,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":38214158,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":38269389,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":38269389,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":38326329,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":38326329,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":38326329,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":38326329,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":38383751,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":38383751,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"CommonStockSharesOutstanding":{"label":"Common Stock, Shares, Outstanding","description":"Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.","units":{"shares":[{"end":"2011-03-31","val":31452922,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-03-31","val":31452922,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-03-31","val":31452922,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2011-03-31","val":31452922,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011Q1I"},{"end":"2011-06-30","val":31521092,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":31170402,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":31239081,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-03-31","val":31323538,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":31323538,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":31323538,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":31323538,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":31323538,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":31391105,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":31197704,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":30835192,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":30885354,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":30885354,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":30885354,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":30885354,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":30885354,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":31046566,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":31118466,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":31254100,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":31353819,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":31353819,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":31353819,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":31353819,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":31353819,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":31437986,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":31545600,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":31649158,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":31674782,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":31674782,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":31674782,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":31674782,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":31674782,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":31938482,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":31455311,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":31542215,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":31375524,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":31375524,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":31375524,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":31375524,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":31375524,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":31458652,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":31536752,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":31597792,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":31912021,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":31912021,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":31912021,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":32595143,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":32764103,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"CommonStockValue":{"label":"Common Stock, Value, Issued","description":"Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.","units":{"USD":[{"end":"2015-03-31","val":381000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":381000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":381000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":381000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":382000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":382000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":382000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":382000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":382000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":382000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":382000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":382000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":383000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":383000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":383000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":383000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":383000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":383000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":384000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":384000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"CommonStockValueOutstanding":{"label":"Common Stock, Value, Outstanding","description":"Value of all classes of common stock held by shareholders. May be all or portion of the number of common shares authorized. These shares exclude common shares repurchased by the entity and held as treasury shares.","units":{"USD":[{"end":"2011-03-31","val":374000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-03-31","val":374000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-03-31","val":374000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2011-03-31","val":374000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011Q1I"},{"end":"2011-06-30","val":375000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":376000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":378000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-03-31","val":378000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":378000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":378000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":378000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":378000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":379000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":379000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":379000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":378000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":379000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":379000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":379000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":379000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":380000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":380000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":380000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":380000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":380000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":380000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":380000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":380000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":381000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":381000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":381000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":381000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"}]}},"ComprehensiveIncomeNetOfTax":{"label":"Comprehensive Income (Loss), Net of Tax, Attributable to Parent","description":"Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":-767000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2011-03-31","val":42530000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":42530000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":24633000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":24633000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":24633000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":972000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":6113000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":5141000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":8382000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":2269000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4"},{"start":"2012-04-01","end":"2013-03-31","val":2465000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":2465000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":2465000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":2992000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":2992000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":11184000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":11184000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":8192000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":8192000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":13699000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":13699000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":2515000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":2515000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":14168000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":14168000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":14168000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":2988000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":2988000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":565000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":565000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":-2423000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-07-01","end":"2014-09-30","val":-2423000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2014Q3"},{"start":"2014-04-01","end":"2014-12-31","val":2692000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":2692000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":2127000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":2127000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":-4377000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":-4377000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":-4377000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":5560000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":5560000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":9789000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":9789000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":4229000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":4229000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2015Q3"},{"start":"2015-04-01","end":"2015-12-31","val":9017000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":9017000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":-772000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":-772000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":17563000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":17563000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":369000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":369000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":4667000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":4667000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":4297000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":4297000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-04-01","end":"2016-12-31","val":3686000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":-981000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4"},{"start":"2016-04-01","end":"2017-03-31","val":13069000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":12363000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":19496000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":7133000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"}]}},"CostMethodInvestments":{"label":"Cost Method Investments","description":"Amount, after adjustment, of cost-method investment. Adjustments include, but are not limited to, dividends received in excess of earnings after date of investment that are considered a return of investment and other than temporary impairments.","units":{"USD":[{"end":"2016-03-31","val":0,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-09-30","val":2000000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":1900000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":3100000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":3100000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":3103000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":4100000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":4270000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"CostmethodInvestmentsOtherThanTemporaryImpairment":{"label":"Cost-method Investments, Other than Temporary Impairment","description":"This item represents an other than temporary decline in value that has been recognized against an investment accounted for under the cost method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is a new cost basis with the adjusted value of the investment becoming its new carrying value. Evidence of a loss in value might include, but would not necessarily be limited to, absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity which would justify the carrying amount of the investment.","units":{"USD":[{"start":"2016-04-01","end":"2016-09-30","val":0,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-12-31","val":0,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"}]}},"CostOfRevenue":{"label":"Cost of Revenue","description":"The aggregate cost of goods produced and sold and services rendered during the reporting period.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":179791000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-06-30","val":55382000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-09-30","val":113484000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":58102000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2010-04-01","end":"2010-12-31","val":176131000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-10-01","end":"2010-12-31","val":62647000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2010Q4"},{"start":"2010-04-01","end":"2011-03-31","val":241175000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":241526000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":66743000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":66743000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":134269000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-04-01","end":"2011-09-30","val":134269000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":67526000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":67526000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2011-04-01","end":"2011-12-31","val":191158000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":191158000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-10-01","end":"2011-12-31","val":56889000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-10-01","end":"2011-12-31","val":56889000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2011Q4"},{"start":"2011-04-01","end":"2012-03-31","val":248384000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":248760000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":248760000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":53668000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":53784000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":101611000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":101841000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":47943000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":48057000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":146364000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":146682000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":44753000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-10-01","end":"2012-12-31","val":44841000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4"},{"start":"2012-04-01","end":"2013-03-31","val":195134000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":195134000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":195134000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":50049000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":50049000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":108049000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":108049000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":58000000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":58000000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":171614000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":171614000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":63565000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":63565000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":236120000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":236120000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":236120000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":63080000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":63080000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":123345000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":123345000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":60265000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-07-01","end":"2014-09-30","val":60265000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2014Q3"},{"start":"2014-04-01","end":"2014-12-31","val":179156000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":179156000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":55811000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":55811000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":236802000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":236802000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":236802000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":56445000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":56445000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":110690000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":110690000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":54245000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":54245000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2015Q3"},{"start":"2015-04-01","end":"2015-12-31","val":161794000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":161794000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":51104000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":51104000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":217451000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":217451000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":56644000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":56644000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":109818000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":109818000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":53174000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":53174000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-04-01","end":"2016-12-31","val":162363000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":52545000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4"},{"start":"2016-04-01","end":"2017-03-31","val":216541000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":56996000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":117893000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":60897000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"}]}},"CurrentFederalTaxExpenseBenefit":{"label":"Current Federal Tax Expense (Benefit)","description":"Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.","units":{"USD":[{"start":"2010-04-01","end":"2011-03-31","val":8125000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":3080000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":3080000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":1795000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":1795000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":1795000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":4804000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":4804000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":4804000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":201000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":201000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":201000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":1418000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":1418000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":406000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"CurrentForeignTaxExpenseBenefit":{"label":"Current Foreign Tax Expense (Benefit)","description":"Amount of current foreign income tax expense (benefit) pertaining to income (loss) from continuing operations.","units":{"USD":[{"start":"2010-04-01","end":"2011-03-31","val":2690000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":4992000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":4992000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":2466000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":2466000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":2466000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":3087000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":3087000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":3087000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":5066000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":5066000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":5066000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":3436000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":3436000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":4532000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"CurrentIncomeTaxExpenseBenefit":{"label":"Current Income Tax Expense (Benefit)","description":"Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.","units":{"USD":[{"start":"2010-04-01","end":"2011-03-31","val":11651000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":8539000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":8539000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":4539000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":4539000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":4539000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":7964000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":7964000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":7964000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":5350000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":5350000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":5350000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":4980000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":4980000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":4378000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"CurrentStateAndLocalTaxExpenseBenefit":{"label":"Current State and Local Tax Expense (Benefit)","description":"Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations.","units":{"USD":[{"start":"2010-04-01","end":"2011-03-31","val":836000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":467000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":467000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":278000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":278000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":278000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":73000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":73000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":73000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":83000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":83000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":83000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":126000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":126000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":-560000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"DebtInstrumentCarryingAmount":{"label":"Long-term Debt, Gross","description":"Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.","units":{"USD":[{"end":"2016-03-31","val":85557000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2016Q1I"},{"end":"2017-03-31","val":76791000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"DebtLongtermAndShorttermCombinedAmount":{"label":"Debt, Long-term and Short-term, Combined Amount","description":"Represents the aggregate of total long-term debt, including current maturities and short-term debt.","units":{"USD":[{"end":"2012-03-31","val":23400000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":23400000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-12-31","val":22100000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":21400000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":21400000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":21400000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":21400000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":21400000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":51300000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":51500000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":51900000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":51600000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":51600000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":51600000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":51600000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":51600000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":36700000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":66100000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":50000000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":49200000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":49200000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":49200000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":49200000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":49200000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":54600000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":53900000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":88100000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":87100000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":87100000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":87100000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":87100000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":87100000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":79000000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":78900000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":78000000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":77800000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":77800000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":77800000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":78000000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":77900000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"DeferredFederalIncomeTaxExpenseBenefit":{"label":"Deferred Federal Income Tax Expense (Benefit)","description":"Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations.","units":{"USD":[{"start":"2010-04-01","end":"2011-03-31","val":-7253000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":772000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":772000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":1734000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":1734000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":1734000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":183000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":183000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":183000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":945000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":945000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":945000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":3554000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":3554000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":1867000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"DeferredFinanceCostsNet":{"label":"Debt Issuance Costs, Net","description":"Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.","units":{"USD":[{"end":"2016-03-31","val":304000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2016Q1I"},{"end":"2017-03-31","val":399000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"DeferredForeignIncomeTaxExpenseBenefit":{"label":"Deferred Foreign Income Tax Expense (Benefit)","description":"Amount of deferred foreign income tax expense (benefit) pertaining to income (loss) from continuing operations.","units":{"USD":[{"start":"2010-04-01","end":"2011-03-31","val":2909000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":598000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":598000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":863000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":863000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":863000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":-820000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":-820000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":-820000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":375000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":375000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":375000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":25000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":25000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":51000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"DeferredIncomeTaxExpenseBenefit":{"label":"Deferred Income Tax Expense (Benefit)","description":"Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":-1358000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2011-03-31","val":-5398000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":-5398000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":1696000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":1696000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":1696000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":2495000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":2495000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":2495000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":-551000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":-551000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":-551000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":1340000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":1340000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":1340000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-12-31","val":2257000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":2257000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-04-01","end":"2016-03-31","val":3768000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":3768000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":3174000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"DeferredStateAndLocalIncomeTaxExpenseBenefit":{"label":"Deferred State and Local Income Tax Expense (Benefit)","description":"Amount of deferred state and local tax expense (benefit) pertaining to income (loss) from continuing operations.","units":{"USD":[{"start":"2010-04-01","end":"2011-03-31","val":-1054000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":326000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":326000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":-102000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":-102000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":-102000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":86000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":86000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":86000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":20000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":20000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":20000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":189000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":189000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":1256000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"DeferredTaxAssetsCapitalLossCarryforwards":{"label":"Deferred Tax Assets, Capital Loss Carryforwards","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible capital loss carryforwards.","units":{"USD":[{"end":"2012-03-31","val":18469000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2013-03-31","val":17261000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":17261000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2014-03-31","val":15216000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":15216000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2015-03-31","val":13993000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":13993000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2016-03-31","val":11675000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":11675000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2017-03-31","val":10236000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"DeferredTaxAssetsGross":{"label":"Deferred Tax Assets, Gross","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.","units":{"USD":[{"end":"2012-03-31","val":37738000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2013-03-31","val":35797000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":35797000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2014-03-31","val":36161000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":36161000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2015-03-31","val":35859000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":35859000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2016-03-31","val":31490000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":31490000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2017-03-31","val":29350000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"DeferredTaxAssetsGrossCurrent":{"label":"Deferred Tax Assets, Gross, Current","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards classified as current.","units":{"USD":[{"end":"2012-03-31","val":8450000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2013-03-31","val":7167000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":7167000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2014-03-31","val":7975000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":7975000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2015-03-31","val":7077000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"}]}},"DeferredTaxAssetsGrossNoncurrent":{"label":"Deferred Tax Assets, Gross, Noncurrent","description":"Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences and carryforwards, classified as noncurrent.","units":{"USD":[{"end":"2012-03-31","val":29288000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2013-03-31","val":28630000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":28630000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2014-03-31","val":28186000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":28186000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2015-03-31","val":28782000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"}]}},"DeferredTaxAssetsLiabilitiesNetCurrent":{"label":"Deferred Tax Assets, Net, Current","description":"Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, netted by jurisdiction and classified as current.","units":{"USD":[{"end":"2014-03-31","val":7975000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":7975000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":7975000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q1I"},{"end":"2014-06-30","val":8002000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":7782000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":7646000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":7077000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":7077000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q1I"},{"end":"2015-06-30","val":7062000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":7085000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"}]}},"DeferredTaxAssetsLiabilitiesNetNoncurrent":{"label":"Deferred Tax Assets, Net, Noncurrent","description":"Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, with jurisdictional netting and classified as noncurrent.","units":{"USD":[{"end":"2014-03-31","val":24316000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":24316000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":24316000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q1I"},{"end":"2014-06-30","val":24515000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":24569000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":24291000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":24880000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":24880000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":31957000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":31957000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":25084000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":24983000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":29750000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":28024000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":28024000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":28024000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":28024000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":28024000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":27825000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":27865000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":27774000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":24739000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":24739000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":24739000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":24917000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":25091000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"DeferredTaxAssetsNet":{"label":"Deferred Tax Assets, Net of Valuation Allowance","description":"Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.","units":{"USD":[{"end":"2012-03-31","val":34079000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2013-03-31","val":32014000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":32014000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2014-03-31","val":32291000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":32291000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2015-03-31","val":31957000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":31957000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2016-03-31","val":28024000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":28024000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2017-03-31","val":24739000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"DeferredTaxAssetsNetCurrent":{"label":"Deferred Tax Assets, Net of Valuation Allowance, Current","description":"Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards classified as current.","units":{"USD":[{"end":"2011-03-31","val":10660000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-03-31","val":10660000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-03-31","val":10660000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2011-03-31","val":10660000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011Q1I"},{"end":"2011-06-30","val":10699000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":10554000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":10457000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-03-31","val":8450000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":8450000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":8450000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":8450000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":8450000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":8315000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":8410000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":8464000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":7167000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":7167000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":7167000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":7167000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":7167000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":7205000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":7367000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":7439000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":7975000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":7975000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2015-03-31","val":7077000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"}]}},"DeferredTaxAssetsNetNoncurrent":{"label":"Deferred Tax Assets, Net of Valuation Allowance, Noncurrent","description":"Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards classified as noncurrent.","units":{"USD":[{"end":"2011-03-31","val":24774000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-03-31","val":24774000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-03-31","val":24774000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2011-03-31","val":24774000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011Q1I"},{"end":"2011-06-30","val":24781000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":24785000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":24753000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-03-31","val":25629000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":25629000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":25629000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":25629000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":25629000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":25539000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":25415000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":26089000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":24847000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":24847000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":24847000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":24847000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":24847000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":25040000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":25039000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":25193000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":24316000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":24316000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2015-03-31","val":24880000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"}]}},"DeferredTaxAssetsOperatingLossCarryforwardsDomestic":{"label":"Deferred Tax Assets, Operating Loss Carryforwards, Domestic","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible domestic operating loss carryforwards. Excludes state and local operating loss carryforwards.","units":{"USD":[{"end":"2013-03-31","val":86800000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"}]}},"DeferredTaxAssetsOperatingLossCarryforwardsForeign":{"label":"Deferred Tax Assets, Operating Loss Carryforwards, Foreign","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible foreign operating loss carryforwards.","units":{"USD":[{"end":"2013-03-31","val":10500000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"},{"end":"2014-03-31","val":10600000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2014Q1I"},{"end":"2015-03-31","val":9100000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"}]}},"DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration":{"label":"Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards that are subject to expiration dates.","units":{"USD":[{"end":"2014-03-31","val":81800000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2014Q1I"},{"end":"2015-03-31","val":77500000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"}]}},"DeferredTaxAssetsTaxCreditCarryforwards":{"label":"Deferred Tax Assets, Tax Credit Carryforwards","description":"Amount, before allocation of a valuation allowances, of deferred tax assets attributable to deductible tax credit carryforwards including, but not limited to, research, foreign, general business, alternative minimum tax, and other deductible tax credit carryforwards.","units":{"USD":[{"end":"2012-03-31","val":2300000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2013-03-31","val":2396000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":2396000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2014-03-31","val":2337000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":2337000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2015-03-31","val":2403000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":2403000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2016-03-31","val":2440000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":2440000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2017-03-31","val":2188000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost":{"label":"Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation.","units":{"USD":[{"end":"2012-03-31","val":3696000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2013-03-31","val":4431000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":4431000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2014-03-31","val":4777000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":4777000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2015-03-31","val":4971000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":4971000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2016-03-31","val":5098000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":5098000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2017-03-31","val":4721000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"DefinedBenefitPensionPlanLiabilitiesNoncurrent":{"label":"Liability, Defined Benefit Pension Plan, Noncurrent","description":"Amount of liability, recognized in statement of financial position, for defined benefit pension plan, classified as noncurrent. Excludes other postretirement benefit plan.","units":{"USD":[{"end":"2011-03-31","val":14545000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q1I"},{"end":"2011-12-31","val":13043000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-03-31","val":15001000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q1I"},{"end":"2012-06-30","val":14140000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"}]}},"DefinedBenefitPlanAccumulatedBenefitObligation":{"label":"Defined Benefit Plan, Accumulated Benefit Obligation","description":"Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level.","units":{"USD":[{"end":"2012-03-31","val":37235000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2013-03-31","val":40696000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":40696000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2014-03-31","val":43910000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":43910000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2015-03-31","val":46695000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":46695000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2016-03-31","val":44509000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":44509000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2017-03-31","val":42652000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax":{"label":"Defined Benefit Plan, Accumulated Other Comprehensive Income (Loss), Gain (Loss), before Tax","description":"Amount, before tax, of accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit.","units":{"USD":[{"end":"2012-03-31","val":-5837000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2013-03-31","val":-8076000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":-8076000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2014-03-31","val":-7743000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":-7743000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2015-03-31","val":-12354000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":-12354000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2016-03-31","val":-12140000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":-12140000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2017-03-31","val":-11457000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"DefinedBenefitPlanActualReturnOnPlanAssets":{"label":"Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss)","description":"Amount of increase (decrease) in plan assets of defined benefit plan from actual return (loss) determined by change in fair value of plan assets adjusted for contributions, benefit payments, and other expenses.","units":{"USD":[{"start":"2011-04-01","end":"2012-03-31","val":430000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":3733000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":3733000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":1711000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":1711000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":4306000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":4306000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":-156000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":-156000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":3526000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"DefinedBenefitPlanActuarialGainLoss":{"label":"Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss)","description":"Amount of gain (loss) from change in actuarial assumptions which (increases) decreases benefit obligation of defined benefit plan. Assumptions include, but are not limited to, interest, mortality, employee turnover, salary, and temporary deviation from substantive plan.","units":{"USD":[{"start":"2011-04-01","end":"2012-03-31","val":833000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":4984000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":4984000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":-636000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":-636000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":9036000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":9036000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":-1549000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":-1549000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":3356000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"DefinedBenefitPlanAmortizationOfGainsLosses":{"label":"Defined Benefit Plan, Amortization of Gain (Loss)","description":"Amount of gain (loss) recognized in net periodic benefit (cost) credit of defined benefit plan.","units":{"USD":[{"start":"2010-04-01","end":"2011-03-31","val":-178000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":-19000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":-38000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":-19000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2011-04-01","end":"2011-12-31","val":-57000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-10-01","end":"2011-12-31","val":-19000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2011Q4"},{"start":"2011-04-01","end":"2012-03-31","val":-68000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":-70000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":-42000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":-42000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":-84000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":-84000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":-42000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":-42000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":-126000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":-126000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":-42000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-10-01","end":"2012-12-31","val":-42000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4"},{"start":"2012-04-01","end":"2013-03-31","val":-165000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":-167000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":-167000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":-58000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":-56000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":-116000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":-113000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":-58000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":-57000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":-177000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":-172000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":-61000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":-59000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":-236000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":-236000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":-236000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":-18000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":-18000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":-36000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":-36000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":-18000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-07-01","end":"2014-09-30","val":-18000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2014Q3"},{"start":"2014-04-01","end":"2014-12-31","val":-53000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":-53000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":-17000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":-17000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":-179000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":-179000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":-179000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":-45000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":-45000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":-90000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":-90000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":-45000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":-45000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2015Q3"},{"start":"2015-04-01","end":"2015-12-31","val":-134000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":-134000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":-44000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":-44000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":-438000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":-438000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":-48000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":-48000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":-92000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":-44000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3"},{"start":"2016-04-01","end":"2016-12-31","val":-133000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":-41000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4"},{"start":"2016-04-01","end":"2017-03-31","val":-387000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":-98000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"}]}},"DefinedBenefitPlanAmortizationOfTransitionObligationsAssets":{"label":"Defined Benefit Plan, Amortization of Transition Obligations (Assets) (Deprecated 2017-01-31)","description":"The amount of the transition obligation or asset recognized in net periodic benefit cost.","units":{"USD":[{"start":"2010-04-01","end":"2011-03-31","val":2000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":2000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":2000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012"}]}},"DefinedBenefitPlanAmountsRecognizedInBalanceSheet":{"label":"Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position","description":"Amount of asset (liability), recognized in statement of financial position, for defined benefit pension and other postretirement plans.","units":{"USD":[{"end":"2011-03-31","val":-14545000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011Q1I"},{"end":"2012-03-31","val":-15001000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":-15001000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":15001000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-09-30","val":-14288000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2013-03-31","val":16330000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":16330000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2014-03-31","val":15545000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":15545000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2015-03-31","val":17232000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":17232000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2016-03-31","val":16307000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":-16307000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2017-03-31","val":-14901000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"DefinedBenefitPlanAmountsThatWillBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossInNextFiscalYear":{"label":"Pension and Other Postretirement Benefit Plans, Amounts that Will be Amortized from Accumulated Other Comprehensive Income (Loss) in Next Fiscal Year (Deprecated 2013-01-31)","description":"The aggregate amount in accumulated other comprehensive income expected to be recognized as a component of net periodic benefit cost over the fiscal year that follows the most recent annual statement of financial position presented, including the net gain (loss), net prior service cost or credit, and net transition asset or obligation.","units":{"USD":[{"start":"2012-04-01","end":"2013-03-31","val":237000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012"}]}},"DefinedBenefitPlanAmountToBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossNextFiscalYear":{"label":"Defined Benefit Plan, Amount to be Amortized from Accumulated Other Comprehensive Income (Loss) Next Fiscal Year (Deprecated 2017-01-31)","description":"Amount included in accumulated other comprehensive income (AOCI) expected to be recognized as components of net periodic benefit cost for the fiscal year that follows the most recent annual statement of financial position, including gain (loss), prior service cost (credit), and transition asset (obligation).","units":{"USD":[{"start":"2013-04-01","end":"2014-03-31","val":68000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":189000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":-397000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015"}]}},"DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease":{"label":"Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase","description":"Weighted average rate of compensation increase used to determine net periodic benefit cost of defined benefit plan. Plan includes, but is not limited to, pay-related defined benefit plan.","units":{"pure":[{"start":"2014-04-01","end":"2015-03-31","val":0.06,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":0.05,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":0.05,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":0.05,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"DefinedBenefitPlanBenefitObligation":{"label":"Defined Benefit Plan, Benefit Obligation","description":"Amount of actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.","units":{"USD":[{"end":"2011-03-31","val":37530000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2011Q1I"},{"end":"2012-03-31","val":37872000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2012-03-31","val":37872000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2012Q1I"},{"end":"2013-03-31","val":41459000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":41459000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2013-03-31","val":41459000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2013Q1I"},{"end":"2014-03-31","val":44558000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":44558000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2014-03-31","val":44558000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014Q1I"},{"end":"2015-03-31","val":47346000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":47346000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2015-03-31","val":47346000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015Q1I"},{"end":"2016-03-31","val":45021000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":45021000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2017-03-31","val":43183000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"DefinedBenefitPlanBenefitObligationBenefitsPaid":{"label":"Defined Benefit Plan, Benefit Obligation, Benefits Paid","description":"Amount of payment to participant of defined benefit plan which decreases benefit obligation. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services.","units":{"USD":[{"start":"2015-04-01","end":"2016-03-31","val":1830000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":1543000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"DefinedBenefitPlanBenefitsPaid":{"label":"Defined Benefit Plan, Benefits Paid (Deprecated 2017-01-31)","description":"The amount of payments made for which participants are entitled under a pension plan, including pension benefits, death benefits, and benefits due on termination of employment. Also includes payments made under a postretirement benefit plan, including prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. This item represents a periodic decrease to the plan obligations and a decrease to plan assets.","units":{"USD":[{"start":"2011-04-01","end":"2012-03-31","val":-2054000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":-1675000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":-1675000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":-1498000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":-1030000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":-970000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":970000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":1388000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015"}]}},"DefinedBenefitPlanContributionsByEmployer":{"label":"Defined Benefit Plan, Plan Assets, Contributions by Employer","description":"Amount of contribution received by defined benefit plan from employer which increases plan assets.","units":{"USD":[{"start":"2011-04-01","end":"2012-03-31","val":759000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":902000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":902000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":1022000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":1022000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":1089000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":1089000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":1009000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":1009000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":993000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"DefinedBenefitPlanEstimatedFutureEmployerContributionsInCurrentFiscalYear":{"label":"Defined Benefit Plan, Estimated Future Employer Contributions in Current Fiscal Year (Deprecated 2013-01-31)","description":"The employer's best estimate, as soon as it can be reasonably determined, of contributions expected to be paid to the plan in the current remaining fiscal period. Estimated contributions may be presented in the aggregate combining (1) contributions required by funding regulations or laws, (2) discretionary contributions, and (3) noncash contributions.","units":{"USD":[{"end":"2012-09-30","val":917000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":917000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-06-30","val":978000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"}]}},"DefinedBenefitPlanEstimatedFutureEmployerContributionsInNextFiscalYear":{"label":"Defined Benefit Plan, Estimated Future Employer Contributions in Next Fiscal Year (Deprecated 2013-01-31)","description":"The employer's best estimate, as soon as it can be reasonably determined, of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position. Estimated contributions may be presented in the aggregate combining (1) contributions required by funding regulations or laws, (2) discretionary contributions, and (3) noncash contributions.","units":{"USD":[{"end":"2012-06-30","val":917000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2013-03-31","val":978000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"}]}},"DefinedBenefitPlanExpectedAmortizationNextFiscalYear":{"label":"Defined Benefit Plan, Expected Amortization, Next Fiscal Year","description":"Amount of cost (credit) included in accumulated other comprehensive (income) loss expected to be recognized in net periodic benefit cost (credit) for fiscal year following most recent annual statement of financial position.","units":{"USD":[{"end":"2017-03-31","val":397000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter":{"label":"Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years","description":"Amount of benefit for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following current fiscal year.","units":{"USD":[{"end":"2013-03-31","val":10268000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"},{"end":"2014-03-31","val":10764000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2014Q1I"},{"end":"2015-03-31","val":10151000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"},{"end":"2016-03-31","val":10069000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2016Q1I"},{"end":"2017-03-31","val":9449000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths":{"label":"Defined Benefit Plan, Expected Future Benefit Payment, Year One","description":"Amount of benefit for defined benefit plan expected to be paid in next fiscal year following current fiscal year.","units":{"USD":[{"end":"2013-03-31","val":1402000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"},{"end":"2014-03-31","val":1576000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2014Q1I"},{"end":"2015-03-31","val":1441000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"},{"end":"2016-03-31","val":1597000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2016Q1I"},{"end":"2017-03-31","val":1525000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive":{"label":"Defined Benefit Plan, Expected Future Benefit Payment, Year Five","description":"Amount of benefit for defined benefit plan expected to be paid in fifth fiscal year following current fiscal year.","units":{"USD":[{"end":"2013-03-31","val":1781000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"},{"end":"2014-03-31","val":2018000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2014Q1I"},{"end":"2015-03-31","val":1935000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"},{"end":"2016-03-31","val":1842000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2016Q1I"},{"end":"2017-03-31","val":1611000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour":{"label":"Defined Benefit Plan, Expected Future Benefit Payment, Year Four","description":"Amount of benefit for defined benefit plan expected to be paid in fourth fiscal year following current fiscal year.","units":{"USD":[{"end":"2013-03-31","val":1770000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"},{"end":"2014-03-31","val":1872000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2014Q1I"},{"end":"2015-03-31","val":1792000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"},{"end":"2016-03-31","val":1815000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2016Q1I"},{"end":"2017-03-31","val":1660000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree":{"label":"Defined Benefit Plan, Expected Future Benefit Payment, Year Three","description":"Amount of benefit for defined benefit plan expected to be paid in third fiscal year following current fiscal year.","units":{"USD":[{"end":"2013-03-31","val":1571000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"},{"end":"2014-03-31","val":1864000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2014Q1I"},{"end":"2015-03-31","val":1664000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"},{"end":"2016-03-31","val":1774000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2016Q1I"},{"end":"2017-03-31","val":1632000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo":{"label":"Defined Benefit Plan, Expected Future Benefit Payment, Year Two","description":"Amount of benefit for defined benefit plan expected to be paid in second fiscal year following current fiscal year.","units":{"USD":[{"end":"2013-03-31","val":1483000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"},{"end":"2014-03-31","val":1672000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2014Q1I"},{"end":"2015-03-31","val":1670000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"},{"end":"2016-03-31","val":1625000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2016Q1I"},{"end":"2017-03-31","val":1561000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear":{"label":"Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year","description":"Amount of contribution expected to be received by defined benefit plan from employer in next fiscal year following current fiscal year.","units":{"USD":[{"end":"2017-03-31","val":948000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":948000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"}]}},"DefinedBenefitPlanExpectedReturnOnPlanAssets":{"label":"Defined Benefit Plan, Expected Return (Loss) on Plan Assets","description":"Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan.","units":{"USD":[{"start":"2010-04-01","end":"2011-03-31","val":1546000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":437000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":869000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":432000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2011-04-01","end":"2011-12-31","val":1291000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-10-01","end":"2011-12-31","val":422000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2011Q4"},{"start":"2011-04-01","end":"2012-03-31","val":1713000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":1713000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":379000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":379000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":758000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":758000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":379000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":379000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":1143000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":1143000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":385000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-10-01","end":"2012-12-31","val":385000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4"},{"start":"2012-04-01","end":"2013-03-31","val":1517000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":1517000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":1517000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":408000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":409000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":818000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":820000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":410000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":411000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":1245000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":1248000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":427000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":428000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":1685000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":1685000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":1685000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":497000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":497000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":991000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":991000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":494000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-07-01","end":"2014-09-30","val":494000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2014Q3"},{"start":"2014-04-01","end":"2014-12-31","val":1460000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":1460000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":469000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":469000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":1910000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":1910000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":1910000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":438000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":438000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":880000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":880000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":442000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":442000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2015Q3"},{"start":"2015-04-01","end":"2015-12-31","val":1312000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":1312000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":432000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":432000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":1721000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":1721000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":323000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":323000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":619000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":296000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3"},{"start":"2016-04-01","end":"2016-12-31","val":901000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":282000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4"},{"start":"2016-04-01","end":"2017-03-31","val":1183000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":280000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"}]}},"DefinedBenefitPlanFairValueOfPlanAssets":{"label":"Defined Benefit Plan, Plan Assets, Amount","description":"Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.","units":{"USD":[{"end":"2011-03-31","val":23315000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2011Q1I"},{"end":"2012-03-31","val":22871000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2012-03-31","val":22871000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2012Q1I"},{"end":"2013-03-31","val":25129000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":25129000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":25129000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":25129000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":25129000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2013-03-31","val":25129000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2013Q1I"},{"end":"2013-06-30","val":24875000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":26956000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":28450000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":29013000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":29013000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":29013000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":29013000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":29013000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2014-03-31","val":29013000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":30091000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":29211000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":29156000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":30114000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":30114000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":30114000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":30114000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":30114000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2015-03-31","val":30114000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":30584000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":28832000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":28406000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":28714000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":28714000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":28714000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":28714000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":28714000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":28194000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":29331000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":27319000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":28282000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":28282000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q1I"},{"end":"2017-06-30","val":28860000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"}]}},"DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation":{"label":"Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss)","description":"Amount of foreign currency translation gain (loss) which (increases) decreases benefit obligation of defined benefit plan.","units":{"USD":[{"start":"2011-04-01","end":"2012-03-31","val":-570000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":-1708000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":-1708000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":3239000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":3239000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":-6688000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":-6688000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":-497000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":-497000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":-5073000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"DefinedBenefitPlanForeignCurrencyExchangeRateChangesPlanAssets":{"label":"Defined Benefit Plan, Foreign Currency Exchange Rate Changes, Plan Assets (Deprecated 2017-01-31)","description":"The amount of increase or decrease in plan assets attributed to foreign currency changes. The effects of foreign currency exchange rate changes that are to be disclosed are those applicable to plans of a foreign operation whose functional currency is not the reporting currency.","units":{"USD":[{"start":"2011-04-01","end":"2012-03-31","val":-44000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":-1072000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":-1072000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":2181000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":2181000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":-3324000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":-3324000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":-865000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015"}]}},"DefinedBenefitPlanFundedStatusOfPlan":{"label":"Defined Benefit Plan, Funded (Unfunded) Status of Plan","description":"Amount of funded (unfunded) status of defined benefit plan, measured as difference between fair value of plan assets and benefit obligation. Includes, but is not limited to, overfunded (underfunded) status.","units":{"USD":[{"end":"2012-03-31","val":-15001000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2013-03-31","val":-16330000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":-16330000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2014-03-31","val":-15545000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":-15545000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2015-03-31","val":-17232000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":17232000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2016-03-31","val":16307000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":-16307000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2017-03-31","val":-14901000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"DefinedBenefitPlanInterestCost":{"label":"Defined Benefit Plan, Interest Cost","description":"Amount of cost recognized for passage of time related to defined benefit plan.","units":{"USD":[{"start":"2010-04-01","end":"2011-03-31","val":2065000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":522000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":1037000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":515000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2011-04-01","end":"2011-12-31","val":1538000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-10-01","end":"2011-12-31","val":501000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2011Q4"},{"start":"2011-04-01","end":"2012-03-31","val":2049000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":2049000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":471000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":471000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":939000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":939000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":468000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":468000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":1417000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":1417000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":478000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-10-01","end":"2012-12-31","val":478000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4"},{"start":"2012-04-01","end":"2013-03-31","val":1890000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":1890000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":1890000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":458000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":458000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":919000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":919000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":461000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":461000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":1398000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":1398000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":479000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":479000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":1886000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":1886000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":1886000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":473000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":473000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":940000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":940000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":467000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-07-01","end":"2014-09-30","val":467000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2014Q3"},{"start":"2014-04-01","end":"2014-12-31","val":1383000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":1383000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":443000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":443000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":1803000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":1803000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":1803000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":368000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":368000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":739000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":739000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":371000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":371000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2015Q3"},{"start":"2015-04-01","end":"2015-12-31","val":1103000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":1103000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":364000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":364000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":1450000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":1450000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":352000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":352000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":678000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":326000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3"},{"start":"2016-04-01","end":"2016-12-31","val":991000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":313000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4"},{"start":"2016-04-01","end":"2017-03-31","val":1313000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":279000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"}]}},"DefinedBenefitPlanNetPeriodicBenefitCost":{"label":"Defined Benefit Plan, Net Periodic Benefit Cost (Credit)","description":"Amount of net periodic benefit cost (credit) for defined benefit plan.","units":{"USD":[{"start":"2010-04-01","end":"2011-03-31","val":770000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":125000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":248000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":123000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2011-04-01","end":"2011-12-31","val":367000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-10-01","end":"2011-12-31","val":119000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2011Q4"},{"start":"2011-04-01","end":"2012-03-31","val":490000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":490000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":158000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":158000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":314000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":314000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":156000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":156000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":474000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":474000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":160000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-10-01","end":"2012-12-31","val":160000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4"},{"start":"2012-04-01","end":"2013-03-31","val":636000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":636000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":636000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":136000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":133000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":272000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":267000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":136000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":134000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":412000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":404000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":140000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":137000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":545000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":545000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":545000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":20000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":20000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":37000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":37000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":17000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-07-01","end":"2014-09-30","val":17000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2014Q3"},{"start":"2014-04-01","end":"2014-12-31","val":54000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":54000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":17000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":17000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":176000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":176000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":176000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":1000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":1000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-07-01","end":"2015-09-30","val":-1000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":-1000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2015Q3"},{"start":"2015-04-01","end":"2015-12-31","val":1000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":1000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":1000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":1000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":268000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":268000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":105000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":105000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":207000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":102000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3"},{"start":"2016-04-01","end":"2016-12-31","val":306000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":99000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4"},{"start":"2016-04-01","end":"2017-03-31","val":626000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":121000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"}]}},"DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation":{"label":"Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Accumulated Benefit Obligation","description":"Amount of accumulated benefit obligation for defined benefit plan with accumulated benefit obligation in excess of plan assets.","units":{"USD":[{"end":"2012-03-31","val":37235000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2013-03-31","val":40696000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":40696000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2014-03-31","val":43910000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":43910000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2015-03-31","val":46695000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":46695000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2016-03-31","val":44509000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":44509000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2017-03-31","val":42652000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets":{"label":"Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Plan Assets","description":"Amount of plan asset for defined benefit plan with accumulated benefit obligation in excess of plan assets.","units":{"USD":[{"end":"2012-03-31","val":22871000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2013-03-31","val":25129000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":25129000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2014-03-31","val":29013000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":29013000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2015-03-31","val":30114000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"}]}},"DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation":{"label":"Defined Benefit Plan, Pension Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Projected Benefit Obligation","description":"Amount of projected benefit obligation for defined benefit pension plan with accumulated benefit obligation in excess of plan assets.","units":{"USD":[{"end":"2012-03-31","val":37872000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2013-03-31","val":41459000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":41459000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2014-03-31","val":44558000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":44558000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2015-03-31","val":47346000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":47346000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2016-03-31","val":45021000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":45021000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2017-03-31","val":43183000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"DefinedBenefitPlanPlanAssetsBenefitsPaid":{"label":"Defined Benefit Plan, Plan Assets, Benefits Paid","description":"Amount of payment to participant under defined benefit plan which decreases plan assets. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services.","units":{"USD":[{"start":"2015-04-01","end":"2016-03-31","val":1388000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":1083000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"DefinedBenefitPlanPlanAssetsForeignCurrencyTranslationGainLoss":{"label":"Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss)","description":"Amount of foreign currency translation gain (loss) which increases (decreases) plan assets of defined benefit plan.","units":{"USD":[{"start":"2015-04-01","end":"2016-03-31","val":-865000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":-3868000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"DefinedBenefitPlanServiceCost":{"label":"Defined Benefit Plan, Service Cost","description":"Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.","units":{"USD":[{"start":"2010-04-01","end":"2011-03-31","val":71000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":21000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":42000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":21000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2011-04-01","end":"2011-12-31","val":63000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-10-01","end":"2011-12-31","val":21000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2011Q4"},{"start":"2011-04-01","end":"2012-03-31","val":84000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":84000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":24000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":24000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":49000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":49000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":25000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":25000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":74000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":74000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":25000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-10-01","end":"2012-12-31","val":25000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4"},{"start":"2012-04-01","end":"2013-03-31","val":96000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":96000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":96000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":28000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":28000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":55000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":55000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":27000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":27000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":82000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":82000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":27000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":27000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":108000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":108000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":108000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":26000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":26000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":52000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":52000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":26000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-07-01","end":"2014-09-30","val":26000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2014Q3"},{"start":"2014-04-01","end":"2014-12-31","val":78000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":78000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":26000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":26000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":104000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":104000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":104000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":26000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":26000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":51000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":51000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":25000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":25000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2015Q3"},{"start":"2015-04-01","end":"2015-12-31","val":76000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":76000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":25000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":25000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":101000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":101000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":28000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":28000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":56000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":28000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3"},{"start":"2016-04-01","end":"2016-12-31","val":83000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":27000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4"},{"start":"2016-04-01","end":"2017-03-31","val":109000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":24000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"}]}},"DefinedBenefitPlansEstimatedFutureEmployerContributionsInCurrentFiscalYear":{"label":"Defined Benefit Plans, Estimated Future Employer Contributions in Current Fiscal Year (Deprecated 2017-01-31)","description":"Amount of employer's best estimate of contributions expected to be paid to the plan in the current remaining fiscal period.","units":{"USD":[{"start":"2013-07-01","end":"2013-09-30","val":978000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3"},{"start":"2013-10-01","end":"2013-12-31","val":978000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4"},{"start":"2014-04-01","end":"2014-06-30","val":1100000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2"},{"start":"2014-07-01","end":"2014-09-30","val":1100000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3"},{"start":"2014-10-01","end":"2014-12-31","val":1100000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4"}]}},"DefinedBenefitPlansEstimatedFutureEmployerContributionsInNextFiscalYear":{"label":"Defined Benefit Plans, Estimated Future Employer Contributions in Next Fiscal Year (Deprecated 2017-01-31)","description":"Amount of employer's best estimate of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position.","units":{"USD":[{"start":"2013-04-01","end":"2014-03-31","val":1100000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":994000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":1100000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015"}]}},"Depreciation":{"label":"Depreciation","description":"The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.","units":{"USD":[{"start":"2010-04-01","end":"2011-03-31","val":11000000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":10900000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":10900000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":10200000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":10200000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":10200000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":10700000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":10700000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":10700000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":11300000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":11300000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":11300000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":8400000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":8400000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":7500000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"DepreciationDepletionAndAmortization":{"label":"Depreciation, Depletion and Amortization","description":"The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":13386000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-12-31","val":13705000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-04-01","end":"2011-03-31","val":18059000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":18059000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":3377000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":6807000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-04-01","end":"2011-12-31","val":10113000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":10113000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-04-01","end":"2012-03-31","val":13467000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":13467000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":13467000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":3277000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":3277000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":6358000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":6358000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-04-01","end":"2012-12-31","val":9462000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":9462000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-04-01","end":"2013-03-31","val":12492000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":12492000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":12492000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":2722000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":2722000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":8597000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":8597000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-04-01","end":"2013-12-31","val":14706000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":14706000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-04-01","end":"2014-03-31","val":21274000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":21274000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":21274000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":4809000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":4809000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":9148000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":9148000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-04-01","end":"2014-12-31","val":13231000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":13231000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":17311000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":17311000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":17311000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":3784000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":3784000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":7145000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":7145000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-04-01","end":"2015-12-31","val":10478000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":10478000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-04-01","end":"2016-03-31","val":13981000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":13981000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":2832000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":2832000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":5367000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":5367000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-04-01","end":"2016-12-31","val":8273000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-04-01","end":"2017-03-31","val":10597000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":2411000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":5046000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"}]}},"DerivativeFinancialInstrumentsLiabilitiesFairValueDisclosure":{"label":"Derivative Financial Instruments, Liabilities, Fair Value Disclosure (Deprecated 2013-01-31)","description":"Derivative instrument obligations meeting the definition of a liability which the Company is a party to as of the balance sheet date.","units":{"USD":[{"end":"2012-03-31","val":203000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q1I"},{"end":"2012-06-30","val":220000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"}]}},"DerivativeLiabilities":{"label":"Derivative Liability","description":"Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.","units":{"USD":[{"end":"2012-03-31","val":203000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q1I"},{"end":"2012-03-31","val":203000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-09-30","val":255000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":275000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"}]}},"DerivativeNumberOfInstrumentsHeld":{"label":"Derivative, Number of Instruments Held","description":"The number of derivative instruments of a particular group held by the entity.","units":{"pure":[{"end":"2016-03-31","val":0,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":0,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":0,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-09-30","val":0,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":0,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":0,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":0,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q1I"},{"end":"2017-06-30","val":0,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"}]}},"DividendsCommonStockCash":{"label":"Dividends, Common Stock, Cash","description":"Amount of paid and unpaid common stock dividends declared with the form of settlement in cash.","units":{"USD":[{"start":"2012-04-01","end":"2013-03-31","val":-1854000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":-1854000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":-1854000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":-3744000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":-3744000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":-3744000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":-4263000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":-4263000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":4263000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":-4896000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":4896000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":1258000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"DividendsPayableCurrentAndNoncurrent":{"label":"Dividends Payable","description":"Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding.","units":{"USD":[{"end":"2016-09-30","val":0,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3I"},{"end":"2017-06-30","val":0,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":0,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"EarningsPerShareBasic":{"label":"Earnings Per Share, Basic","description":"The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.","units":{"USD/shares":[{"start":"2009-04-01","end":"2010-03-31","val":-0.02,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-06-30","val":0.21,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-09-30","val":0.43,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":0.22,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2010-04-01","end":"2010-12-31","val":0.66,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-10-01","end":"2010-12-31","val":0.23,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2010Q4"},{"start":"2010-04-01","end":"2011-03-31","val":1.17,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":1.17,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":0.32,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":0.32,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":0.67,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-04-01","end":"2011-09-30","val":0.67,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":0.35,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":0.35,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2011-04-01","end":"2011-12-31","val":0.85,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":0.85,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-10-01","end":"2011-12-31","val":0.18,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-10-01","end":"2011-12-31","val":0.18,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2011Q4"},{"start":"2011-04-01","end":"2012-03-31","val":0.97,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":0.97,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":0.97,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":0.19,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":0.19,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":0.27,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":0.27,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":0.08,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":0.08,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":0.31,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":0.31,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":0.04,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-10-01","end":"2012-12-31","val":0.04,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4"},{"start":"2012-04-01","end":"2013-03-31","val":0.25,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":0.25,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":0.25,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":0.06,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":0.06,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":0.17,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":0.17,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":0.11,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":0.11,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":0.19,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":0.19,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":0.02,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":0.02,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":0.19,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":0.19,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":0.19,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":0.11,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":0.11,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2014-04-01","end":"2014-06-30","val":0.11,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":0.3,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":0.3,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":0.18,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-07-01","end":"2014-09-30","val":0.18,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":0.18,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014Q3"},{"start":"2014-04-01","end":"2014-12-31","val":0.51,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":0.51,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":0.21,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":0.21,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":0.21,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":0.75,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":0.75,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":0.75,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":0.25,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1"},{"start":"2015-04-01","end":"2015-06-30","val":0.09,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":0.09,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2015-06-30","val":0.09,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2015-04-01","end":"2015-06-30","val":0.09,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":0.2,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":0.2,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":0.1,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":0.1,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-07-01","end":"2015-09-30","val":0.1,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":0.1,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015Q3"},{"start":"2015-04-01","end":"2015-12-31","val":0.27,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":0.27,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":0.07,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":0.07,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-10-01","end":"2015-12-31","val":0.07,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":0.07,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":0.47,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":0.47,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":0.2,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2016-01-01","end":"2016-03-31","val":0.2,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1"},{"start":"2016-04-01","end":"2016-06-30","val":0.1,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":0.1,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"start":"2016-04-01","end":"2016-06-30","val":0.1,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":0.22,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":0.22,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":0.12,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":0.12,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"start":"2016-07-01","end":"2016-09-30","val":0.12,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-04-01","end":"2016-12-31","val":0.38,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":0.16,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":0.16,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q4"},{"start":"2016-04-01","end":"2017-03-31","val":0.68,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":0.29,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1"},{"start":"2017-04-01","end":"2017-06-30","val":0.17,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":0.28,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":0.11,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"}]}},"EarningsPerShareDiluted":{"label":"Earnings Per Share, Diluted","description":"The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.","units":{"USD/shares":[{"start":"2009-04-01","end":"2010-03-31","val":-0.02,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-06-30","val":0.21,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-09-30","val":0.42,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":0.22,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2010-04-01","end":"2010-12-31","val":0.65,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-10-01","end":"2010-12-31","val":0.23,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2010Q4"},{"start":"2010-04-01","end":"2011-03-31","val":1.14,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":1.14,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":0.3,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":0.3,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":0.64,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-04-01","end":"2011-09-30","val":0.64,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":0.34,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":0.34,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2011-04-01","end":"2011-12-31","val":0.82,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":0.82,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-10-01","end":"2011-12-31","val":0.18,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-10-01","end":"2011-12-31","val":0.18,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2011Q4"},{"start":"2011-04-01","end":"2012-03-31","val":0.93,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":0.93,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":0.93,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":0.19,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":0.19,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":0.26,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":0.26,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":0.07,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":0.07,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":0.3,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":0.3,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":0.04,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-10-01","end":"2012-12-31","val":0.04,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4"},{"start":"2012-04-01","end":"2013-03-31","val":0.24,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":0.24,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":0.24,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":0.06,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":0.06,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":0.17,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":0.17,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":0.11,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":0.11,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":0.19,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":0.19,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":0.02,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":0.02,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":0.19,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":0.19,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":0.19,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":0.11,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":0.11,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2014-04-01","end":"2014-06-30","val":0.11,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":0.29,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":0.29,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":0.18,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-07-01","end":"2014-09-30","val":0.18,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":0.18,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014Q3"},{"start":"2014-04-01","end":"2014-12-31","val":0.5,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":0.5,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":0.21,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":0.21,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":0.21,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":0.74,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":0.74,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":0.74,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":0.24,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1"},{"start":"2015-04-01","end":"2015-06-30","val":0.09,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":0.09,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2015-06-30","val":0.09,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2015-04-01","end":"2015-06-30","val":0.09,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":0.19,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":0.19,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":0.1,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":0.1,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-07-01","end":"2015-09-30","val":0.1,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":0.1,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015Q3"},{"start":"2015-04-01","end":"2015-12-31","val":0.26,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":0.26,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":0.07,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":0.07,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-10-01","end":"2015-12-31","val":0.07,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":0.07,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":0.46,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":0.46,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":0.19,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2016-01-01","end":"2016-03-31","val":0.19,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1"},{"start":"2016-04-01","end":"2016-06-30","val":0.09,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":0.09,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"start":"2016-04-01","end":"2016-06-30","val":0.09,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":0.22,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":0.22,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":0.12,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":0.12,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"start":"2016-07-01","end":"2016-09-30","val":0.12,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-04-01","end":"2016-12-31","val":0.38,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":0.16,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":0.16,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q4"},{"start":"2016-04-01","end":"2017-03-31","val":0.66,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":0.28,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1"},{"start":"2017-04-01","end":"2017-06-30","val":0.17,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":0.27,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":0.1,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"}]}},"EffectiveIncomeTaxRateContinuingOperations":{"label":"Effective Income Tax Rate Reconciliation, Percent","description":"Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.","units":{"pure":[{"start":"2010-04-01","end":"2011-03-31","val":0.15,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":0.365,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":0.333,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":0.3,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2011-04-01","end":"2011-12-31","val":0.288,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-10-01","end":"2011-12-31","val":0.052,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2011Q4"},{"start":"2011-04-01","end":"2012-03-31","val":0.25,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":0.25,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":0.35,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":0.35,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":0.34,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":0.34,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":0.313,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":0.313,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":0.348,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":0.348,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":0.397,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-10-01","end":"2012-12-31","val":0.397,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4"},{"start":"2012-04-01","end":"2013-03-31","val":0.48,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":0.48,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":0.48,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":0.319,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":0.319,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":0.299,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":0.299,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":0.287,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":0.287,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":0.456,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":0.456,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":0.828,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":0.828,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":0.55,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":0.55,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":0.55,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":0.302,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":0.302,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":0.339,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":0.339,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":0.36,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-07-01","end":"2014-09-30","val":0.36,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2014Q3"},{"start":"2014-04-01","end":"2014-12-31","val":0.258,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":0.258,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":0.104,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":0.104,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":0.22,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":0.22,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":0.22,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":0.358,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":0.358,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":0.4,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":0.4,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":0.434,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":0.434,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2015Q3"},{"start":"2015-04-01","end":"2015-12-31","val":0.485,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":0.485,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":0.63,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":0.63,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":0.37,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":0.37,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":0.427,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":0.427,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":0.424,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":0.424,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":0.421,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":0.421,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-04-01","end":"2016-12-31","val":0.373,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":0.286,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4"},{"start":"2016-04-01","end":"2017-03-31","val":0.26,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":0.241,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":0.239,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":0.236,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"}]}},"EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate":{"label":"Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent","description":"Percentage of domestic federal statutory tax rate applicable to pretax income (loss).","units":{"pure":[{"start":"2010-04-01","end":"2011-03-31","val":0.35,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":0.35,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":0.35,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":0.35,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":0.35,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":0.35,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":0.35,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":0.35,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":0.35,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":0.35,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":0.35,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":0.35,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":0.35,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":0.35,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":0.35,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance":{"label":"Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets.","units":{"pure":[{"start":"2010-04-01","end":"2011-03-31","val":-0.19,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":-0.04,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":-0.04,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":0.06,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":0.06,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":0.06,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":0.02,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":0.02,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":0.02,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":0,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":0.03,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":0.03,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":0.04,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential":{"label":"Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to statutory income tax expense (benefit) outside of the country of domicile.","units":{"pure":[{"start":"2010-04-01","end":"2011-03-31","val":-0.08,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":-0.05,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":-0.05,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":0,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":0,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":0,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":0,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":0,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":-0.15,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":-0.15,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":-0.15,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":-0.1,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":-0.1,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":-0.17,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost":{"label":"Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Payment Arrangement, Percent","description":"Percentage of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to nondeductible expense for share-based payment arrangement.","units":{"pure":[{"start":"2010-04-01","end":"2011-03-31","val":0.01,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":0.01,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":0.01,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":0.02,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":0.02,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":0.02,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":0,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":0,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":0,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014"}]}},"EffectiveIncomeTaxRateReconciliationRepatriationOfForeignEarnings":{"label":"Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to the repatriation of foreign earnings.","units":{"pure":[{"start":"2010-04-01","end":"2011-03-31","val":0,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":0,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":0,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":0.01,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":0.01,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":0.01,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":0.12,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":0.12,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":0.12,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":0.02,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":0.02,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":0.02,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":0.06,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":0.06,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":0.02,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes":{"label":"Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit).","units":{"pure":[{"start":"2010-04-01","end":"2011-03-31","val":-0.01,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":0.02,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":0.02,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":0.01,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":0.01,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":0.01,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":0.01,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":0.01,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":0.01,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":0.01,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":0.01,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":0.01,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":0.01,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":0.01,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":0.01,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"EffectiveIncomeTaxRateReconciliationTaxContingencies":{"label":"Effective Income Tax Rate Reconciliation, Tax Contingency, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to income tax contingencies. Includes, but not limited to, domestic tax contingency, foreign tax contingency, state and local tax contingency, and other contingencies.","units":{"pure":[{"start":"2010-04-01","end":"2011-03-31","val":0.05,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":-0.06,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":-0.06,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":0.03,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":0.03,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":0.03,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":0.02,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":0.02,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":0.02,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":0,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014"},{"start":"2016-04-01","end":"2017-03-31","val":0.01,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"EffectiveIncomeTaxRateReconciliationTaxCreditsResearch":{"label":"Effective Income Tax Rate Reconciliation, Tax Credit, Research, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to research tax credit.","units":{"pure":[{"start":"2010-04-01","end":"2011-03-31","val":-0.01,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":-0.01,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":-0.01,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":-0.04,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":-0.04,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":-0.04,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":-0.01,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":-0.01,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":-0.01,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":-0.01,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":-0.01,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":0.01,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":-0.03,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":0.03,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":0.02,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"EffectOfExchangeRateOnCashAndCashEquivalents":{"label":"Effect of Exchange Rate on Cash and Cash Equivalents","description":"Amount of increase (decrease) from the effect of exchange rate changes on cash and cash equivalent balances held in foreign currencies.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":398000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-06-30","val":-1277000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-09-30","val":708000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2010-04-01","end":"2010-12-31","val":79000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-04-01","end":"2011-03-31","val":1357000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":1357000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":384000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":384000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":-747000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-04-01","end":"2011-09-30","val":-747000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-04-01","end":"2011-12-31","val":-1998000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":-1998000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-04-01","end":"2012-03-31","val":-1166000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":-1166000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":-1166000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":-1738000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":-1738000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":-869000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":-869000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-04-01","end":"2012-12-31","val":128000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":128000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-04-01","end":"2013-03-31","val":-1187000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":-1187000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":-1187000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":640000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":640000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":1960000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":1960000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-04-01","end":"2013-12-31","val":2508000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":2508000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-04-01","end":"2014-03-31","val":2471000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":2471000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":2471000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":-59000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":-59000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":-1388000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":-1388000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-04-01","end":"2014-12-31","val":-2422000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":-2422000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":-5262000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":-5262000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":-5262000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":860000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":860000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":1023000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":1023000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-04-01","end":"2015-12-31","val":-234000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":-234000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-04-01","end":"2016-03-31","val":1268000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":1268000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":-1161000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":-1161000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":-920000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":-920000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-04-01","end":"2016-12-31","val":-4082000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-04-01","end":"2017-03-31","val":-3195000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":3028000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":4606000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"}]}},"EmployeeRelatedLiabilitiesCurrent":{"label":"Employee-related Liabilities, Current","description":"Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).","units":{"USD":[{"end":"2012-03-31","val":7214000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":7214000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":7214000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":7214000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":6884000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":6629000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":5199000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":5950000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":5950000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":5950000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":5950000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":5950000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":6369000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":6758000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":5933000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":6880000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":6880000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":6880000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":6880000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":6880000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":7391000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":7245000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":4962000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":6230000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":6230000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":6230000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":6230000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":6230000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":7820000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":7500000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":5781000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":7540000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":7540000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":7540000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":7540000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":7540000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":7204000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":7028000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":5212000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":6707000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":6707000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":6707000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":7118000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":8304000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized":{"label":"Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount","description":"Amount of cost not yet recognized for nonvested award under share-based payment arrangement.","units":{"USD":[{"end":"2016-03-31","val":6600000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":6800000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":6800000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":7400000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":6800000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"},{"end":"2017-06-30","val":9200000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":8200000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense":{"label":"Share-based Payment Arrangement, Expense, Tax Benefit","description":"Amount of tax benefit for recognition of expense of award under share-based payment arrangement.","units":{"USD":[{"start":"2010-04-01","end":"2011-03-31","val":1236000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":282000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":570000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":287000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2011-04-01","end":"2011-12-31","val":814000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-10-01","end":"2011-12-31","val":339000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2011Q4"},{"start":"2011-04-01","end":"2012-03-31","val":1375000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":1375000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":383000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":383000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":746000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":746000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":363000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":363000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":1000000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":1000000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":254000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-10-01","end":"2012-12-31","val":254000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4"},{"start":"2012-04-01","end":"2013-03-31","val":1287000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":1287000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":1287000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":208000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":208000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":416000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":416000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":208000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":208000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":712000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":712000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":242000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":242000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":1071000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":1071000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":1071000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":211000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":238000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":482000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-04-01","end":"2014-09-30","val":482000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-07-01","end":"2014-09-30","val":244000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-07-01","end":"2014-09-30","val":244000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2014Q3"},{"start":"2014-04-01","end":"2014-12-31","val":744000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":744000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":262000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":262000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":1009000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":1009000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":1009000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":346000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":346000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":679000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":679000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":333000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":333000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2015Q3"},{"start":"2015-04-01","end":"2015-12-31","val":972000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":972000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":293000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":293000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":660000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":660000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":342000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":342000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":692000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":692000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":350000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":350000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-04-01","end":"2016-12-31","val":1021000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":329000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4"},{"start":"2016-04-01","end":"2017-03-31","val":694000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":363000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":802000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":439000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"}]}},"EquityMethodInvestmentAggregateCost":{"label":"Equity Method Investment, Aggregate Cost","description":"This element represents the aggregate cost of investments accounted for under the equity method of accounting.","units":{"USD":[{"end":"2013-03-31","val":500000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"}]}},"EquityMethodInvestmentOtherThanTemporaryImpairment":{"label":"Equity Method Investment, Other than Temporary Impairment","description":"This item represents an other than temporary decline in value that has been recognized against an investment accounted for under the equity method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is a new cost basis with the adjusted value of the investment becoming its new carrying value subject to the equity accounting method. Evidence of a loss in value might include, but would not necessarily be limited to, absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity which would justify the carrying amount of the investment.","units":{"USD":[{"start":"2016-04-01","end":"2016-09-30","val":0,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-12-31","val":0,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"}]}},"EquityMethodInvestments":{"label":"Equity Method Investments","description":"This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.","units":{"USD":[{"end":"2012-03-31","val":5340000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2013-03-31","val":5449000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":5449000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":5449000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":5449000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":5449000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":5515000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":5615000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":5727000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":5921000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":5921000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":5921000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":5921000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":5921000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":5836000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":5564000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":11369000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":11041000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":11041000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":11041000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":11041000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":11041000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":11042000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":10895000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":10854000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":10977000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":10977000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":10977000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":10977000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":10977000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":11250000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":11457000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":11554000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":11589000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":11589000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":11589000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":12145000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":12551000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"ExcessTaxBenefitFromShareBasedCompensationFinancingActivities":{"label":"Excess Tax Benefit from Share-based Compensation, Financing Activities","description":"Amount of cash inflow from realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":1219000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2011-03-31","val":305000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":305000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":663000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":663000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":663000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":-38000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":-38000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":-38000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":152000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":152000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":152000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":105000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":105000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014"}]}},"ExcessTaxBenefitFromShareBasedCompensationOperatingActivities":{"label":"Excess Tax Benefit from Share-based Compensation, Operating Activities","description":"Amount of cash outflow for realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":1219000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2011-03-31","val":305000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":305000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":663000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":663000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":663000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":-38000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":-38000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":-38000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":152000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":152000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":152000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":105000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":105000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014"}]}},"FiniteLivedIntangibleAssetsAccumulatedAmortization":{"label":"Finite-Lived Intangible Assets, Accumulated Amortization","description":"Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.","units":{"USD":[{"end":"2012-03-31","val":8943000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":8943000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":8943000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":8943000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":9585000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":10070000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":10632000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":11194000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":11194000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":11194000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":11194000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":11194000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":11463000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":14889000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":18315000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":21740000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":21740000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":21740000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":21740000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":21740000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":23447000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":24866000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":26285000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":27703000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":27703000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":27703000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":29283000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2016-03-31","val":33338000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":33338000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":33338000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-12-31","val":35646000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":36562000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths":{"label":"Finite-Lived Intangible Asset, Expected Amortization, Year One","description":"Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2013-03-31","val":989000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"},{"end":"2014-03-31","val":6000000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2014Q1I"},{"end":"2015-03-31","val":4700000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"},{"end":"2016-03-31","val":3200000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2016Q1I"},{"end":"2017-03-31","val":2400000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"FiniteLivedIntangibleAssetsAmortizationExpenseYearFive":{"label":"Finite-Lived Intangible Asset, Expected Amortization, Year Five","description":"Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2013-03-31","val":1000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"},{"end":"2014-03-31","val":596000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2014Q1I"},{"end":"2016-03-31","val":240000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2016Q1I"}]}},"FiniteLivedIntangibleAssetsAmortizationExpenseYearFour":{"label":"Finite-Lived Intangible Asset, Expected Amortization, Year Four","description":"Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2013-03-31","val":6000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"},{"end":"2014-03-31","val":2400000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2014Q1I"},{"end":"2015-03-31","val":596000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"},{"end":"2016-03-31","val":268000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2016Q1I"}]}},"FiniteLivedIntangibleAssetsAmortizationExpenseYearThree":{"label":"Finite-Lived Intangible Asset, Expected Amortization, Year Three","description":"Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2013-03-31","val":908000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"},{"end":"2014-03-31","val":2700000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2014Q1I"},{"end":"2015-03-31","val":2400000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"},{"end":"2016-03-31","val":904000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2016Q1I"}]}},"FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo":{"label":"Finite-Lived Intangible Asset, Expected Amortization, Year Two","description":"Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2013-03-31","val":989000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"},{"end":"2014-03-31","val":4700000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2014Q1I"},{"end":"2015-03-31","val":2700000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"},{"end":"2016-03-31","val":2900000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2016Q1I"},{"end":"2017-03-31","val":596000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"FiniteLivedIntangibleAssetsGross":{"label":"Finite-Lived Intangible Assets, Gross","description":"Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.","units":{"USD":[{"end":"2012-03-31","val":14087000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":14087000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":14087000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":14087000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":14087000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":14087000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":14087000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":14087000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":14087000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":14087000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":14087000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":14087000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":62736000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":38087000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":38087000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":38087000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":38087000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":38087000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":38087000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":38087000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":38087000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":38087000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":38087000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":38087000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":38087000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":38087000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":40610000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2016-03-31","val":40945000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":40945000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":40945000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-12-31","val":40615000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":40937000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"FiniteLivedIntangibleAssetsNet":{"label":"Finite-Lived Intangible Assets, Net","description":"Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.","units":{"USD":[{"end":"2012-03-31","val":5144000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":5144000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":5144000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":5144000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":4502000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":4017000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":3455000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":2893000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":2893000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":2893000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":2893000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":2893000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":51273000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":23198000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":19772000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":16347000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":16347000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":16347000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":16347000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":16347000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":14640000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":13221000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":11802000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":10384000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":10384000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":10384000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":11327000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2016-03-31","val":7607000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":7607000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":7607000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-12-31","val":3578000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":2984000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"FinitelivedIntangibleAssetsAcquired1":{"label":"Finite-lived Intangible Assets Acquired","description":"Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition.","units":{"USD":[{"start":"2013-06-26","end":"2013-06-27","val":24000000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-06-26","end":"2013-06-27","val":24000000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q2I"},{"start":"2013-04-01","end":"2013-09-30","val":24000000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-12-31","val":24000000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2015-05-01","val":2523000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-05-01","val":2523000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-05-01","val":2523000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-05-01","val":2867000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2015-05-01","val":2867000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2015-05-01","val":2867000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2015-05-01","val":2867000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2015-05-01","val":2867000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015Q1I"}]}},"ForeignCurrencyTransactionGainLossBeforeTax":{"label":"Foreign Currency Transaction Gain (Loss), before Tax","description":"Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement.","units":{"USD":[{"start":"2012-04-01","end":"2013-03-31","val":142000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":-312000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":5033000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014"}]}},"GainLossOnInvestments":{"label":"Gain (Loss) on Investments","description":"Amount of realized and unrealized gain (loss) on investment.","units":{"USD":[{"start":"2014-04-01","end":"2014-09-30","val":34000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-04-01","end":"2014-12-31","val":-838000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":-1785000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-09-30","val":-650000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":-650000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-04-01","end":"2015-12-31","val":-635000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":-635000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-04-01","end":"2016-03-31","val":-605000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":169000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":552000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":552000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-04-01","end":"2016-12-31","val":811000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-04-01","end":"2017-03-31","val":808000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":431000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":744000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"}]}},"GainLossOnSaleOfInvestments":{"label":"Gain (Loss) on Sale of Investments","description":"The net realized gain (loss) on investments sold during the period, not including gains (losses) on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, which, for cash flow reporting, is a component of proceeds from investing activities.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":-249000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2011-03-31","val":358000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":358000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":217000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":217000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":217000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":362000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":362000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":542000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013"}]}},"GainLossOnSaleOfOtherAssets":{"label":"Gain (Loss) on Disposition of Other Assets","description":"Amount of gain (loss) on sale or disposal of other assets.","units":{"USD":[{"start":"2010-04-01","end":"2010-06-30","val":-14000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-09-30","val":-448000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2010-04-01","end":"2010-12-31","val":177000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-06-30","val":-127000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":-127000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":-124000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-04-01","end":"2011-09-30","val":-124000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-04-01","end":"2011-12-31","val":-57000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":-57000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-06-30","val":-24000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":-24000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":-31000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":-31000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-04-01","end":"2012-12-31","val":13000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":13000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-06-30","val":140000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":140000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":186000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":186000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-04-01","end":"2013-12-31","val":256000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":256000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-06-30","val":-12000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":-12000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":34000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-12-31","val":-838000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2015-04-01","end":"2015-06-30","val":-147000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2"}]}},"GainLossOnSaleOfPropertyPlantEquipment":{"label":"Gain (Loss) on Disposition of Property Plant Equipment","description":"Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":364000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2011-03-31","val":-217000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":-217000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":-71000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":-71000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":-71000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":0,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":0,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":0,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013"}]}},"Goodwill":{"label":"Goodwill","description":"Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.","units":{"USD":[{"end":"2011-03-31","val":6448000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-03-31","val":6448000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-03-31","val":6448000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2011-03-31","val":6448000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2011-03-31","val":6448000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2011Q1I"},{"end":"2011-06-30","val":6448000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":6448000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":6448000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-03-31","val":0,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":0,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2012-03-31","val":0,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2012Q1I"},{"end":"2013-03-31","val":0,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":0,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":0,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":0,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":0,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2013-03-31","val":0,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2013Q1I"},{"end":"2013-06-27","val":25164000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-06-27","val":25164000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-06-30","val":165000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":25164000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":25164000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":25164000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":25164000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":25164000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":25164000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":25164000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2014-03-31","val":25164000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":27928000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":27749000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":27641000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":27375000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":27375000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":27375000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":27375000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":27375000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2015-03-31","val":27375000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":42776000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":42616000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":42548000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":42355000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":42355000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":42355000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":42355000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":42355000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":42313000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":42335000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":42193000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":42227000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":42227000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":42227000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":42378000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":43993000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"GoodwillAcquiredDuringPeriod":{"label":"Goodwill, Acquired During Period","description":"Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.","units":{"USD":[{"start":"2011-04-01","end":"2012-03-31","val":0,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":0,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":0,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":25164000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":25164000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":2781000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":2781000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014"},{"start":"2015-05-01","end":"2015-05-31","val":14900000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015Q2I"},{"start":"2015-04-01","end":"2016-03-31","val":14887000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":14887000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"}]}},"GoodwillForeignCurrencyTranslationGainLoss":{"label":"Goodwill, Foreign Currency Translation Gain (Loss)","description":"Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.","units":{"USD":[{"start":"2014-04-01","end":"2015-03-31","val":-570000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":93000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":93000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":-128000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"GoodwillGross":{"label":"Goodwill, Gross","description":"Amount before accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.","units":{"USD":[{"end":"2012-03-31","val":13192000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2013-03-31","val":13192000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":13192000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2013-03-31","val":13192000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2013Q1I"},{"end":"2014-03-31","val":13192000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":38356000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2015-03-31","val":38356000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2016-03-31","val":41137000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":41137000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2017-03-31","val":56024000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"GoodwillImpairedAccumulatedImpairmentLoss":{"label":"Goodwill, Impaired, Accumulated Impairment Loss","description":"Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.","units":{"USD":[{"end":"2012-03-31","val":-6744000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2013-03-31","val":-13192000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":-13192000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2013-03-31","val":-13192000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2013Q1I"},{"end":"2014-03-31","val":-13192000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":-13192000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2015-03-31","val":-13192000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":13192000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2016-03-31","val":13192000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":13192000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2017-03-31","val":13192000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"GoodwillImpairmentLoss":{"label":"Goodwill, Impairment Loss","description":"Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.","units":{"USD":[{"start":"2011-04-01","end":"2012-03-31","val":-6448000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":0,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012"}]}},"GoodwillPurchaseAccountingAdjustments":{"label":"Goodwill, Purchase Accounting Adjustments","description":"Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.","units":{"USD":[{"start":"2013-04-01","end":"2013-09-30","val":25000000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-12-31","val":25000000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"}]}},"GoodwillTranslationAdjustments":{"label":"Goodwill, Translation Adjustments (Deprecated 2016-01-31)","description":"Amount of increase (decrease) from foreign currency translation adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.","units":{"USD":[{"start":"2013-04-01","end":"2014-03-31","val":0,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":-570000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014"}]}},"GrossProfit":{"label":"Gross Profit","description":"Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":63433000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-06-30","val":29493000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-09-30","val":61301000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":31808000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2010-04-01","end":"2010-12-31","val":90381000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-10-01","end":"2010-12-31","val":29080000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2010Q4"},{"start":"2010-04-01","end":"2011-03-31","val":122098000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":121747000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":35035000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":35035000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":66513000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-04-01","end":"2011-09-30","val":66513000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":31478000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":31478000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2011-04-01","end":"2011-12-31","val":89665000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":89665000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-10-01","end":"2011-12-31","val":23152000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-10-01","end":"2011-12-31","val":23152000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2011Q4"},{"start":"2011-04-01","end":"2012-03-31","val":119620000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":119244000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":119244000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":27189000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":27073000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":47707000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":47477000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":20518000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":20404000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":66766000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":66448000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":19059000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-10-01","end":"2012-12-31","val":18971000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4"},{"start":"2012-04-01","end":"2013-03-31","val":84880000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":84880000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":84880000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":21137000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":21137000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":49038000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":49038000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":27901000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":27901000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":74821000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":74821000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":25783000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":25783000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":100210000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":100210000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":100210000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":25000000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":25000000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2014-04-01","end":"2014-06-30","val":25000000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":51170000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":51170000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":26170000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-07-01","end":"2014-09-30","val":26170000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":26170000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014Q3"},{"start":"2014-04-01","end":"2014-12-31","val":76685000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":76685000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":25515000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":25515000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":25515000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":101965000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":101965000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":101965000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":25280000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1"},{"start":"2015-04-01","end":"2015-06-30","val":25602000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":25602000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2015-06-30","val":25602000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2015-04-01","end":"2015-06-30","val":25602000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":51614000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":51614000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":26012000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":26012000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-07-01","end":"2015-09-30","val":26012000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":26012000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015Q3"},{"start":"2015-04-01","end":"2015-12-31","val":75643000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":75643000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":24029000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":24029000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-10-01","end":"2015-12-31","val":24029000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":24029000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":99758000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":99758000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":24115000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2016-01-01","end":"2016-03-31","val":24115000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1"},{"start":"2016-04-01","end":"2016-06-30","val":23994000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":23994000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"start":"2016-04-01","end":"2016-06-30","val":23994000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":49449000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":49449000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":25455000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":25455000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"start":"2016-07-01","end":"2016-09-30","val":25455000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-04-01","end":"2016-12-31","val":76388000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":26939000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":26939000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q4"},{"start":"2016-04-01","end":"2017-03-31","val":105582000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":29194000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1"},{"start":"2017-04-01","end":"2017-06-30","val":26546000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":53333000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":26787000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"}]}},"ImpairmentOfIntangibleAssetsFinitelived":{"label":"Impairment of Intangible Assets, Finite-lived","description":"The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.","units":{"USD":[{"start":"2016-04-01","end":"2016-12-31","val":1391000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":1391000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":1400000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"start":"2016-10-01","end":"2016-12-31","val":1400000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"start":"2016-10-01","end":"2016-12-31","val":1400000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q4"},{"start":"2016-04-01","end":"2017-03-31","val":1391000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"ImpairmentOfInvestments":{"label":"Other than Temporary Impairment Losses, Investments","description":"The amount by which the fair value of an investment is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income.","units":{"USD":[{"start":"2012-04-01","end":"2013-03-31","val":1300000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":1300000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":7000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":7000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2013"},{"start":"2014-04-01","end":"2014-12-31","val":945000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":945000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":1900000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":1900000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":1900000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":454000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":454000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":454000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":454000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2015Q3"},{"start":"2015-04-01","end":"2015-12-31","val":454000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":454000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":0,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":0,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":454000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":454000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":151000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":151000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":151000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":151000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":0,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":0,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-04-01","end":"2016-12-31","val":151000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":0,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4"},{"start":"2016-04-01","end":"2017-03-31","val":151000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":0,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":0,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"}]}},"IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic":{"label":"Income (Loss) from Continuing Operations before Income Taxes, Domestic","description":"The portion of earnings or loss from continuing operations before income taxes that is attributable to domestic operations.","units":{"USD":[{"start":"2010-04-01","end":"2011-03-31","val":23546000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":15015000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":15015000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":7359000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":7359000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":7359000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":7104000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":7104000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":7104000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":3390000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":3390000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":3390000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":9030000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":9030000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":7997000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest":{"label":"Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest","description":"Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":2334000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-12-31","val":33033000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-10-01","end":"2010-12-31","val":9959000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2010Q4"},{"start":"2010-04-01","end":"2011-03-31","val":42900000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":42900000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":15722000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":31367000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":15645000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2011-04-01","end":"2011-12-31","val":37349000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":37349000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-10-01","end":"2011-12-31","val":5982000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-10-01","end":"2011-12-31","val":5982000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2011Q4"},{"start":"2011-04-01","end":"2012-03-31","val":40541000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":40541000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":40541000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":9241000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":9241000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":12674000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":12674000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":3433000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":3433000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":14645000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":14645000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":1971000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-10-01","end":"2012-12-31","val":1971000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4"},{"start":"2012-04-01","end":"2013-03-31","val":14682000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":14682000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":14682000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":2905000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":2905000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":7649000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":7649000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":4744000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":4744000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":10866000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":10866000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":3217000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":3217000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":13459000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":13459000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":13459000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":5124000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":5124000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":14106000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":14106000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":8982000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-07-01","end":"2014-09-30","val":8982000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2014Q3"},{"start":"2014-04-01","end":"2014-12-31","val":21495000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":21495000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":7389000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":7389000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":30430000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":30430000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":30430000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":4647000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":4647000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":10425000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":10425000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":5778000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":5778000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2015Q3"},{"start":"2015-04-01","end":"2015-12-31","val":16599000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":16599000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":6174000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":6174000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":23489000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":23489000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":5271000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":5271000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":12066000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":12066000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":6795000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":6795000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-04-01","end":"2016-12-31","val":19210000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":7144000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4"},{"start":"2016-04-01","end":"2017-03-31","val":28900000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":7241000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":11774000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":4533000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"}]}},"IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign":{"label":"Income (Loss) from Continuing Operations before Income Taxes, Foreign","description":"The portion of earnings or loss from continuing operations before income taxes that is attributable to foreign operations, which is defined as Income or Loss generated from operations located outside the entity's country of domicile.","units":{"USD":[{"start":"2010-04-01","end":"2011-03-31","val":19354000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":25526000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":25526000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":7323000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":7323000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":7323000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":6355000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":6355000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":6355000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":27040000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":27040000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":27040000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":14459000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":14459000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":20903000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"IncomeLossFromEquityMethodInvestments":{"label":"Income (Loss) from Equity Method Investments","description":"Amount of income (loss) for proportionate share of equity method investee's income (loss).","units":{"USD":[{"start":"2013-04-01","end":"2014-03-31","val":303000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":-7000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":-7000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":-120000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":-120000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":809000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"IncomeTaxExpenseBenefit":{"label":"Income Tax Expense (Benefit)","description":"Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":3011000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-06-30","val":5996000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-09-30","val":9667000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":3671000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2010-04-01","end":"2010-12-31","val":12320000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-10-01","end":"2010-12-31","val":2653000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2010Q4"},{"start":"2010-04-01","end":"2011-03-31","val":6253000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":6253000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":5746000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":5746000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":10444000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-04-01","end":"2011-09-30","val":10444000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":4698000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":4698000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2011-04-01","end":"2011-12-31","val":10755000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":10755000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-10-01","end":"2011-12-31","val":311000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-10-01","end":"2011-12-31","val":311000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2011Q4"},{"start":"2011-04-01","end":"2012-03-31","val":10235000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":10235000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":10235000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":3234000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":3234000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":4310000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":4310000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":1076000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":1076000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":5092000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":5092000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":782000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-10-01","end":"2012-12-31","val":782000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4"},{"start":"2012-04-01","end":"2013-03-31","val":7034000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":7034000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":7034000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":926000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":926000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":2287000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":2287000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":1361000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":1361000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":4952000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":4952000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":2665000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":2665000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":7413000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":7413000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":7413000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":1549000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":1549000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":4784000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":4784000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":3235000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-07-01","end":"2014-09-30","val":3235000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2014Q3"},{"start":"2014-04-01","end":"2014-12-31","val":5551000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":5551000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":767000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":767000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":6690000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":6690000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":6690000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":1662000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":1662000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":4167000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":4167000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":2505000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":2505000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2015Q3"},{"start":"2015-04-01","end":"2015-12-31","val":8055000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":8055000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":3888000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":3888000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":8748000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":8748000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":2252000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":2252000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":5112000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":5112000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":2860000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":2860000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-04-01","end":"2016-12-31","val":7156000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":2044000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4"},{"start":"2016-04-01","end":"2017-03-31","val":7552000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":1747000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":2817000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":1070000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"}]}},"IncomeTaxesPaid":{"label":"Income Taxes Paid","description":"The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":1760000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2011-03-31","val":14238000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":14238000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":11329000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":11329000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":11329000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":126000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":126000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":126000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":4760000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":4760000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":4760000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":1416000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":1416000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":1416000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":5669000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":5669000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":3985000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"IncreaseDecreaseInAccountsPayable":{"label":"Increase (Decrease) in Accounts Payable","description":"The increase (decrease) during the reporting period in the aggregate amount of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":2814000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-06-30","val":502000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-09-30","val":-1525000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2010-04-01","end":"2010-12-31","val":-534000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-04-01","end":"2011-03-31","val":-1407000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":-1407000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":-925000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":-925000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":152000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-04-01","end":"2011-09-30","val":152000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-04-01","end":"2011-12-31","val":4288000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":4288000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-04-01","end":"2012-03-31","val":-2006000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":-2006000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":-2006000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":1475000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":1475000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":-104000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":-104000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-04-01","end":"2012-12-31","val":-3510000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":-3510000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-04-01","end":"2013-03-31","val":-1304000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":-1304000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":-1304000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":-80000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":-80000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":6073000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":6073000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-04-01","end":"2013-12-31","val":-146000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":-146000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-04-01","end":"2014-03-31","val":2067000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":2067000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":2067000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":330000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":330000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":-1067000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":-1067000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-04-01","end":"2014-12-31","val":-4934000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":-4934000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":-2646000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":-2646000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":-2646000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":609000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":609000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":-583000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":-583000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-04-01","end":"2015-12-31","val":1715000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":1715000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-04-01","end":"2016-03-31","val":-2173000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":-2173000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":559000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":559000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":-86000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":-86000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-04-01","end":"2016-12-31","val":-149000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-04-01","end":"2017-03-31","val":-529000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":-1468000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":508000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"}]}},"IncreaseDecreaseInAccountsReceivable":{"label":"Increase (Decrease) in Accounts Receivable","description":"The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":12182000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-06-30","val":8144000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-09-30","val":7134000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2010-04-01","end":"2010-12-31","val":9262000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-04-01","end":"2011-03-31","val":15279000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":15279000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":5060000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":5060000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":6288000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-04-01","end":"2011-09-30","val":6288000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-04-01","end":"2011-12-31","val":-3357000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":-3357000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-04-01","end":"2012-03-31","val":2795000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":2795000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":2795000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":893000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":893000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":-3468000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":-3468000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-04-01","end":"2012-12-31","val":-8037000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":-8037000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-04-01","end":"2013-03-31","val":487000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":487000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":487000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":4466000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":4466000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":11606000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":11606000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-04-01","end":"2013-12-31","val":6779000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":6779000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-04-01","end":"2014-03-31","val":14755000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":14755000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":2999000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":3249000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-12-31","val":1110000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":7342000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014"}]}},"IncreaseDecreaseInInventories":{"label":"Increase (Decrease) in Inventories","description":"The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":-12305000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-06-30","val":2454000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-09-30","val":7486000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2010-04-01","end":"2010-12-31","val":7837000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-04-01","end":"2011-03-31","val":3403000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":3403000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":-500000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":-500000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":5480000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-04-01","end":"2011-09-30","val":5480000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-04-01","end":"2011-12-31","val":14267000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":14267000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-04-01","end":"2012-03-31","val":13420000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":13420000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":13420000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":1897000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":1897000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":4696000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":4696000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-04-01","end":"2012-12-31","val":2109000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":2109000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-04-01","end":"2013-03-31","val":839000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":839000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":839000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":2198000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":2198000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":3659000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":3659000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-04-01","end":"2013-12-31","val":6665000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":6665000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-04-01","end":"2014-03-31","val":6296000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":6296000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":6296000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":3943000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":3943000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":5310000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":5310000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-04-01","end":"2014-12-31","val":3941000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":3941000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":2203000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":2203000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":2203000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":-611000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":-611000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":3218000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":3218000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-04-01","end":"2015-12-31","val":7778000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":7778000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-04-01","end":"2016-03-31","val":7702000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":7702000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":-2083000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":-2083000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":2112000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":2112000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-04-01","end":"2016-12-31","val":3152000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-04-01","end":"2017-03-31","val":5527000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":636000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":3378000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"}]}},"IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities":{"label":"Increase (Decrease) in Other Accounts Payable and Accrued Liabilities","description":"The increase (decrease) during the reporting period in other obligations or expenses incurred but not yet paid.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":3201000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-06-30","val":2564000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-09-30","val":5548000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2010-04-01","end":"2010-12-31","val":826000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-04-01","end":"2011-03-31","val":-5608000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":-5608000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":2366000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":2366000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":5984000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-04-01","end":"2011-09-30","val":5984000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-04-01","end":"2011-12-31","val":-1971000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":-1971000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-04-01","end":"2012-03-31","val":-3634000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":-3634000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":-3634000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":369000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":369000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":-2497000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":-2497000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-04-01","end":"2012-12-31","val":-6381000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":-6381000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-04-01","end":"2013-03-31","val":-744000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":-744000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":-744000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":-433000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":-433000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":2772000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":2772000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-04-01","end":"2013-12-31","val":2278000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":2278000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-04-01","end":"2014-03-31","val":5698000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":5698000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":5698000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":2320000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":2320000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":2232000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":2232000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-04-01","end":"2014-12-31","val":-374000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":-374000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":2058000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":2058000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":2058000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":329000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":329000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":1772000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":1772000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-04-01","end":"2015-12-31","val":-338000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":-338000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-04-01","end":"2016-03-31","val":-693000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":-693000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":1113000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":1113000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":3021000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":3021000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-04-01","end":"2016-12-31","val":4222000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-04-01","end":"2017-03-31","val":3577000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":-4533000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":-4504000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"}]}},"IncreaseDecreaseInOtherCurrentAssets":{"label":"Increase (Decrease) in Other Current Assets","description":"Amount of increase (decrease) in current assets classified as other.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":-2849000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-12-31","val":-308000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-04-01","end":"2011-03-31","val":-488000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":-488000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":-877000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":-1102000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-04-01","end":"2011-12-31","val":-1097000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":-1097000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-04-01","end":"2012-03-31","val":-2842000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":-2842000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":-2842000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":376000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":376000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":1239000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":1239000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-04-01","end":"2012-12-31","val":-835000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":-835000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-04-01","end":"2013-03-31","val":3878000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":3878000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":273000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":1936000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-12-31","val":584000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2014-03-31","val":5518000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013"}]}},"IncreaseDecreaseInOtherNoncurrentAssets":{"label":"Increase (Decrease) in Other Noncurrent Assets","description":"Amount of increase (decrease) in noncurrent assets classified as other.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":-236000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-12-31","val":362000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-04-01","end":"2011-03-31","val":889000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":889000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":-80000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":-121000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-04-01","end":"2011-12-31","val":-187000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":-187000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-04-01","end":"2012-03-31","val":-540000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":-540000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":-540000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":-313000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":-313000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":-415000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":-415000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-04-01","end":"2012-12-31","val":-440000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":-440000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-04-01","end":"2013-03-31","val":-832000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":-832000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":-832000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":13000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":13000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":706000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":706000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-04-01","end":"2013-12-31","val":942000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":942000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-04-01","end":"2014-03-31","val":968000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":968000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":968000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":-930000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":-930000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":-790000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":-790000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-04-01","end":"2014-12-31","val":-615000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":-615000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":-828000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":-828000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":263000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":68000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-12-31","val":149000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2016-03-31","val":101000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015"}]}},"IncreaseDecreaseInPensionPlanObligations":{"label":"Increase (Decrease) in Obligation, Pension Benefits","description":"Amount of increase (decrease) in obligation for pension benefits. Includes, but is not limited to, defined benefit or defined contribution plans. Excludes other postretirement benefits.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":-56000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-06-30","val":-101000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-09-30","val":-205000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2010-04-01","end":"2010-12-31","val":-306000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-04-01","end":"2011-03-31","val":-578000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":-578000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":-190000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":-190000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":-402000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-04-01","end":"2011-09-30","val":-402000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-04-01","end":"2011-12-31","val":-603000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":-603000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-04-01","end":"2012-03-31","val":-602000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":-602000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":-602000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":-218000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":-218000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":-433000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":-433000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-04-01","end":"2012-12-31","val":-695000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":-695000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-04-01","end":"2013-03-31","val":-626000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":-626000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":-626000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":-336000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":-336000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":-751000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":-751000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-04-01","end":"2013-12-31","val":-1146000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":-1146000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-04-01","end":"2014-03-31","val":-907000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":-907000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":-907000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":-320000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":-320000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":-657000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":-657000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-04-01","end":"2014-12-31","val":-1021000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":-1021000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":-1414000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":-1414000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":-1414000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":-301000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":-301000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":-617000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":-617000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-04-01","end":"2015-12-31","val":-938000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":-938000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-04-01","end":"2016-03-31","val":-1153000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":-1153000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":-198000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":-198000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":-386000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":-386000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-04-01","end":"2016-12-31","val":-608000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-04-01","end":"2017-03-31","val":-840000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":-206000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":-419000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"}]}},"IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets":{"label":"Increase (Decrease) in Prepaid Expense and Other Assets","description":"Amount of increase (decrease) in prepaid expenses, and assets classified as other.","units":{"USD":[{"start":"2012-04-01","end":"2013-03-31","val":3878000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":273000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":1936000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-04-01","end":"2013-12-31","val":584000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-04-01","end":"2014-03-31","val":5518000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":5518000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":-5453000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":-5453000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":-5016000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":-5016000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-04-01","end":"2014-12-31","val":-5464000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":-5464000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":-5103000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":-5103000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":-5931000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":516000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":779000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":634000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":702000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-04-01","end":"2015-12-31","val":916000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":1065000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-04-01","end":"2016-03-31","val":1219000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":1320000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":-130000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":-130000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":326000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":326000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-04-01","end":"2016-12-31","val":2186000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-04-01","end":"2017-03-31","val":-162000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":2282000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":3320000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"}]}},"IncreaseDecreaseInReceivables":{"label":"Increase (Decrease) in Receivables","description":"The increase (decrease) during the reporting period in the total amount due within one year (or one operating cycle) from all parties, associated with underlying transactions that are classified as operating activities.","units":{"USD":[{"start":"2013-04-01","end":"2014-03-31","val":14755000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":2999000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":3249000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-04-01","end":"2014-12-31","val":1110000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":7342000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":7342000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":630000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":630000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":-1239000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":-1239000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-04-01","end":"2015-12-31","val":-1667000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":-1667000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-04-01","end":"2016-03-31","val":2238000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":2238000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":4652000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":4652000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":5242000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":5242000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-04-01","end":"2016-12-31","val":6716000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-04-01","end":"2017-03-31","val":14299000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":2553000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":4846000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"}]}},"IncreaseDecreaseInRestrictedCash":{"label":"Increase (Decrease) in Restricted Cash","description":"The net cash inflow or outflow for the increase (decrease) associated with funds that are not available for withdrawal or use (such as funds held in escrow) and are associated with underlying transactions that are classified as investing activities.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":413000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-06-30","val":31000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-09-30","val":113000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2010-04-01","end":"2010-12-31","val":69000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-04-01","end":"2011-03-31","val":-220000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":-220000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":7000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":7000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":-11000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-04-01","end":"2011-09-30","val":-11000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-04-01","end":"2011-12-31","val":-74000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":-74000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-04-01","end":"2012-03-31","val":-84000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":-84000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":-84000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":48000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":48000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":55000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":55000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-04-01","end":"2012-12-31","val":-186000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":-186000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-04-01","end":"2013-03-31","val":-195000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":-195000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":-195000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":4000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":4000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":17000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":17000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-04-01","end":"2013-12-31","val":23000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":23000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-04-01","end":"2014-03-31","val":23000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":23000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":23000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":611000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":611000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":356000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":356000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-04-01","end":"2014-12-31","val":-40000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":-40000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":-71000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":-71000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":5000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":5000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":879000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":879000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-04-01","end":"2015-12-31","val":357000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2016-03-31","val":-88000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":-5000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":-3000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"}]}},"IntangibleAssetsNetExcludingGoodwill":{"label":"Intangible Assets, Net (Excluding Goodwill)","description":"Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.","units":{"USD":[{"end":"2011-03-31","val":7674000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-03-31","val":7674000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-03-31","val":7674000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2011-03-31","val":7674000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011Q1I"},{"end":"2011-06-30","val":7031000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":6426000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":5784000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-03-31","val":5144000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":5144000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":5144000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":5144000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":5144000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":4502000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":4017000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":3455000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":2893000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":2893000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":2893000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":2893000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":2893000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":51273000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":23198000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":19772000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":16347000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":16347000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":16347000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":16347000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":16347000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":14640000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":13221000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":11802000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":10384000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":10384000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":10384000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":10384000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":10384000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":11327000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":9676000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":8348000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":7607000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":7607000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":7607000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":7607000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":7607000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":6590000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":5896000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":3578000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":2984000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":2984000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":2984000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":2398000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":1789000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"InterestExpense":{"label":"Interest Expense","description":"Amount of the cost of borrowed funds accounted for as interest expense.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":1656000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-06-30","val":420000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-09-30","val":815000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":395000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2010-04-01","end":"2010-12-31","val":1204000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-10-01","end":"2010-12-31","val":389000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2010Q4"},{"start":"2010-04-01","end":"2011-03-31","val":1513000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":1513000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":284000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":284000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":577000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-04-01","end":"2011-09-30","val":577000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":293000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":293000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2011-04-01","end":"2011-12-31","val":859000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":859000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-10-01","end":"2011-12-31","val":282000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-10-01","end":"2011-12-31","val":282000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2011Q4"},{"start":"2011-04-01","end":"2012-03-31","val":1129000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":1129000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":1129000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":257000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":257000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":491000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":491000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":234000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":234000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":719000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":719000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":228000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-10-01","end":"2012-12-31","val":228000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4"},{"start":"2012-04-01","end":"2013-03-31","val":938000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":938000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":938000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":212000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":212000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":693000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":693000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":480000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":480000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":1151000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":1151000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":458000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":458000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":1579000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":1579000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":1579000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":410000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":410000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":732000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":732000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":322000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-07-01","end":"2014-09-30","val":322000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2014Q3"},{"start":"2014-04-01","end":"2014-12-31","val":1124000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":1124000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":392000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":392000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":1397000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":1397000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":1397000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":314000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":314000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":598000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":598000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":284000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":284000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2015Q3"},{"start":"2015-04-01","end":"2015-12-31","val":1030000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":1030000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":432000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":432000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":1641000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":1641000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":635000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":635000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":1250000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":1250000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":615000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":615000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-04-01","end":"2016-12-31","val":1896000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":646000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4"},{"start":"2016-04-01","end":"2017-03-31","val":2545000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":694000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":1128000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":434000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"}]}},"InterestPaid":{"label":"Interest Paid, Including Capitalized Interest, Operating and Investing Activities","description":"Amount of cash paid for interest, including, but not limited to, capitalized interest and payment to settle zero-coupon bond attributable to accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount; classified as operating and investing activities.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":1629000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2011-03-31","val":1045000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":1045000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":1129000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":1129000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":1129000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":897000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":897000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":897000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":801000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":801000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":801000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":2172000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":2172000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":2172000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":1992000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":1992000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":2545000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"InventoryFinishedGoods":{"label":"Inventory, Finished Goods, Gross","description":"Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.","units":{"USD":[{"end":"2012-03-31","val":21470000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-03-31","val":21470000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":21470000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":21578000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-06-30","val":23915000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":26800000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":27266000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":25444000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q1I"},{"end":"2013-03-31","val":25444000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-06-30","val":26857000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"}]}},"InventoryFinishedGoodsNetOfReserves":{"label":"Inventory, Finished Goods, Net of Reserves","description":"Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.","units":{"USD":[{"end":"2013-03-31","val":25444000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":25444000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":25444000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-09-30","val":27546000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":28014000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":28906000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":28906000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":28906000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":28906000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":28906000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":30322000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":28863000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":27382000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":27345000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":27345000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":27345000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":27345000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":27345000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":29083000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":29908000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":30425000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":29786000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":29786000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":29786000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":29786000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":29786000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":27119000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":27114000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":25690000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":25882000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":25882000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":25882000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":27146000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":24685000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"InventoryNet":{"label":"Inventory, Net","description":"Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.","units":{"USD":[{"end":"2011-03-31","val":75839000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-03-31","val":75839000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-03-31","val":75839000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2011-03-31","val":75839000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011Q1I"},{"end":"2011-06-30","val":75623000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":79601000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":86181000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-03-31","val":86240000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":86240000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":86240000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":86240000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":86240000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":85808000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":89583000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":87384000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":83829000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":83829000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":83829000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":83829000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":83829000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":86897000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":89750000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":93647000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":93028000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":93028000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":93028000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":93028000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":93028000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":96213000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":93145000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":89140000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":82005000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":82005000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":82005000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":82005000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":82005000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":83062000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":86362000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":89664000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":89604000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":89604000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":89604000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":89604000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":89604000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":85656000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":89696000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":87118000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":89436000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":89436000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":89436000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":92369000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":95944000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"InventoryRawMaterials":{"label":"Inventory, Raw Materials, Gross","description":"Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer.","units":{"USD":[{"end":"2012-03-31","val":23200000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-03-31","val":23200000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":23200000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":24157000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-06-30","val":23325000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":21438000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":19577000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":17349000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q1I"},{"end":"2013-03-31","val":17349000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-06-30","val":18100000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"}]}},"InventoryRawMaterialsNetOfReserves":{"label":"Inventory, Raw Materials, Net of Reserves","description":"Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of unprocessed items to be consumed in the manufacturing or production process.","units":{"USD":[{"end":"2013-03-31","val":17349000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":17349000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":17349000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-09-30","val":20065000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":20950000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":19957000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":19957000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":19957000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":19957000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":19957000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":21753000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":21458000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":21577000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":17169000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":17169000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":17169000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":17169000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":17169000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":16571000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":16294000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":18253000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":18269000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":18269000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":18269000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":18269000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":18269000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":18252000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":19348000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":18952000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":17920000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":17920000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":17920000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":18831000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":20870000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"InventoryWorkInProcess":{"label":"Inventory, Work in Process, Gross","description":"Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.","units":{"USD":[{"end":"2012-03-31","val":41570000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-03-31","val":41570000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":41570000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":40505000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-06-30","val":38568000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":41345000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":40541000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":41036000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q1I"},{"end":"2013-03-31","val":41036000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-06-30","val":41940000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"}]}},"InventoryWorkInProcessNetOfReserves":{"label":"Inventory, Work in Process, Net of Reserves","description":"Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.","units":{"USD":[{"end":"2013-03-31","val":41036000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":41036000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":41036000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-09-30","val":42139000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":44683000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":44165000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":44165000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":44165000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":44165000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":44165000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":44138000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":42824000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":40181000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":37491000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":37491000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":37491000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":37491000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":37491000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":37408000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":40160000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":40986000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":41549000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":41549000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":41549000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":41549000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":41549000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":40285000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":43234000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":42476000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":45634000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":45634000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":45634000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":46392000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":50389000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"InventoryWriteDown":{"label":"Inventory Write-down","description":"Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":2059000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-12-31","val":-4344000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-04-01","end":"2011-03-31","val":-4395000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":-4395000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":262000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":322000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-04-01","end":"2011-12-31","val":739000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":739000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-04-01","end":"2012-03-31","val":1322000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":1322000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":1322000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":-1000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":-1000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":337000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":337000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-04-01","end":"2012-12-31","val":878000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":878000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-04-01","end":"2013-03-31","val":1295000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":1295000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":1295000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":765000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":765000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":1271000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":1271000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-04-01","end":"2013-12-31","val":1392000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":1392000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-04-01","end":"2014-03-31","val":1724000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":1724000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":1724000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":865000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":865000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":1653000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":1653000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-04-01","end":"2014-12-31","val":2072000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":2072000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":2852000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":2852000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":2852000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":300000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":300000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":703000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":703000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-04-01","end":"2015-12-31","val":640000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":640000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-04-01","end":"2016-03-31","val":1576000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":1576000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":425000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":425000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":593000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":593000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-04-01","end":"2016-12-31","val":1433000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-04-01","end":"2017-03-31","val":2172000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":383000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":1442000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"}]}},"InvestmentIncomeInterest":{"label":"Investment Income, Interest","description":"Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":426000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-06-30","val":73000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-09-30","val":152000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":78000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2010-04-01","end":"2010-12-31","val":219000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-10-01","end":"2010-12-31","val":67000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2010Q4"},{"start":"2010-04-01","end":"2011-03-31","val":285000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":285000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":69000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":69000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":161000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-04-01","end":"2011-09-30","val":161000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":92000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":92000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2011-04-01","end":"2011-12-31","val":246000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":246000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-10-01","end":"2011-12-31","val":85000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-10-01","end":"2011-12-31","val":85000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2011Q4"},{"start":"2011-04-01","end":"2012-03-31","val":367000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":367000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":367000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":84000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":84000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":168000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":168000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":84000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":84000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":281000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":281000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":113000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-10-01","end":"2012-12-31","val":113000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4"},{"start":"2012-04-01","end":"2013-03-31","val":334000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":334000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":334000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":39000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":39000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":76000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":76000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":36000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":36000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":116000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":116000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":40000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":40000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":157000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":157000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":157000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":47000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":47000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":96000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":96000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":49000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-07-01","end":"2014-09-30","val":49000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2014Q3"},{"start":"2014-04-01","end":"2014-12-31","val":153000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":153000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":57000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":57000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":240000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":240000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":240000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":47000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":47000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":86000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":86000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":39000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":39000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2015Q3"},{"start":"2015-04-01","end":"2015-12-31","val":140000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":140000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":54000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":54000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":212000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":212000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":62000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":62000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":115000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":115000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":53000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":53000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-04-01","end":"2016-12-31","val":196000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":81000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4"},{"start":"2016-04-01","end":"2017-03-31","val":265000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":79000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":168000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":89000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"}]}},"LeaseholdImprovementsGross":{"label":"Leasehold Improvements, Gross","description":"Amount before accumulated depreciation of additions or improvements to assets held under a lease arrangement.","units":{"USD":[{"end":"2012-03-31","val":936000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2013-03-31","val":917000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":917000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2014-03-31","val":1253000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":1253000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2015-03-31","val":1304000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"}]}},"Liabilities":{"label":"Liabilities","description":"Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.","units":{"USD":[{"end":"2011-03-31","val":95960000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-03-31","val":95960000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-03-31","val":95960000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2011-03-31","val":95960000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011Q1I"},{"end":"2011-06-30","val":96408000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":98770000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":94005000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-03-31","val":89803000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":89803000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":89803000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":89803000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":89803000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":85014000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":81300000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":74737000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":79868000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":79868000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":79868000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":79868000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":79868000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":108695000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":118364000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":111554000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":112550000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":112550000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":112550000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":112550000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":112550000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":99376000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":124190000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":101191000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":106554000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":106554000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":106554000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":106554000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":106554000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":116431000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":114596000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":148214000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":143406000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":143406000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":143406000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":143406000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":143406000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":137680000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":136911000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":135886000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":136124000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":136124000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":136124000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":134171000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":138646000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"LiabilitiesAndStockholdersEquity":{"label":"Liabilities and Equity","description":"Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any.","units":{"USD":[{"end":"2011-03-31","val":325189000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-03-31","val":325189000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-03-31","val":325189000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2011-03-31","val":325189000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011Q1I"},{"end":"2011-06-30","val":337790000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":341861000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":340381000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-03-31","val":343910000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":343910000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":343910000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":343910000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":343910000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":341755000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":342296000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":334271000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":333476000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":333476000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":333476000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":333476000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":333476000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":366385000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":384411000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":381055000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":383182000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":383182000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":383182000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":383182000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":383182000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":373545000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":395899000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":375598000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":373855000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":373855000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":373855000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":373855000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":373855000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":391384000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":387993000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":421236000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":422701000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":422701000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":422701000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":422701000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":422701000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":417636000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":422700000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":422081000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":433979000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":433979000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":433979000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":449387000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":462978000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"LiabilitiesCurrent":{"label":"Liabilities, Current","description":"Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer.","units":{"USD":[{"end":"2011-03-31","val":44042000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-03-31","val":44042000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-03-31","val":44042000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2011-03-31","val":44042000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011Q1I"},{"end":"2011-06-30","val":43522000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":47100000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":44386000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-03-31","val":41019000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":41019000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":41019000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":41019000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":41019000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":38622000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":35348000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":44422000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":48228000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":48228000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":48228000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":48228000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":48228000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":63006000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":72864000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":67110000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":69346000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":69346000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":69346000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":69346000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":69346000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":56635000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":53529000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":76936000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":78794000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":78794000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":78794000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":78794000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":78794000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":85364000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":84059000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":40043000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":34510000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":34510000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":34510000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":34510000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":34510000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":36923000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":36542000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":37398000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":37814000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":37814000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":37814000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":35169000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":39467000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"LongTermDebt":{"label":"Long-term Debt","description":"Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.","units":{"USD":[{"end":"2013-03-31","val":21415000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"},{"end":"2014-03-31","val":51640000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2014Q1I"},{"end":"2015-03-31","val":49223000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"},{"end":"2016-03-31","val":87361000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2016Q1I"},{"end":"2017-03-31","val":77849000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"LongTermDebtCurrent":{"label":"Long-term Debt, Current Maturities","description":"Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.","units":{"USD":[{"end":"2011-03-31","val":1352000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-03-31","val":1352000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-03-31","val":1352000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2011-03-31","val":1352000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011Q1I"},{"end":"2011-06-30","val":1484000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":1435000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":1397000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-03-31","val":1696000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":1696000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":1696000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":1696000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":1696000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":939000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":961000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":16209000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":15956000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":15956000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":15956000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":15956000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":15956000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":15964000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":16009000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":1257000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":1028000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":1028000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":1028000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":1028000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":1028000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":1085000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":969000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":45854000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":45790000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":45790000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":45790000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":45790000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":45790000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":48262000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":47812000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":2725000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":1804000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":1804000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":1804000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":1804000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":1804000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":1076000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":1087000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":976000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":1058000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":1058000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":1058000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":1107000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":1148000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"LongTermDebtFairValue":{"label":"Long-term Debt, Fair Value","description":"The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.","units":{"USD":[{"end":"2012-03-31","val":23400000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q1I"},{"end":"2012-03-31","val":23400000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-06-30","val":22000000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":21900000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"}]}},"LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive":{"label":"Long-Term Debt, Maturity, after Year Five","description":"Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2013-03-31","val":1923000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"},{"end":"2014-03-31","val":1145000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2014Q1I"},{"end":"2015-03-31","val":286000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"},{"end":"2016-03-31","val":1050000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2016Q1I"}]}},"LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths":{"label":"Long-Term Debt, Maturity, Year One","description":"Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2013-03-31","val":15956000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"},{"end":"2014-03-31","val":31809000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2014Q1I"},{"end":"2015-03-31","val":45790000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"},{"end":"2016-03-31","val":1804000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2016Q1I"},{"end":"2017-03-31","val":1058000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive":{"label":"Long-Term Debt, Maturity, Year Five","description":"Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2013-03-31","val":854000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"},{"end":"2014-03-31","val":917000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2014Q1I"},{"end":"2015-03-31","val":777000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"},{"end":"2016-03-31","val":1134000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2016Q1I"},{"end":"2017-03-31","val":1048000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour":{"label":"Long-Term Debt, Maturity, Year Four","description":"Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2013-03-31","val":855000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"},{"end":"2014-03-31","val":917000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2014Q1I"},{"end":"2015-03-31","val":790000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"},{"end":"2016-03-31","val":1133000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2016Q1I"},{"end":"2017-03-31","val":1048000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree":{"label":"Long-Term Debt, Maturity, Year Three","description":"Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2013-03-31","val":872000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"},{"end":"2014-03-31","val":917000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2014Q1I"},{"end":"2015-03-31","val":790000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"},{"end":"2016-03-31","val":1120000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2016Q1I"},{"end":"2017-03-31","val":73648000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo":{"label":"Long-Term Debt, Maturity, Year Two","description":"Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2013-03-31","val":955000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"},{"end":"2014-03-31","val":15935000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2014Q1I"},{"end":"2015-03-31","val":790000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"},{"end":"2016-03-31","val":81120000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2016Q1I"},{"end":"2017-03-31","val":1047000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"LongTermDebtNoncurrent":{"label":"Long-term Debt, Excluding Current Maturities","description":"Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.","units":{"USD":[{"end":"2011-03-31","val":23418000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-03-31","val":23418000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-03-31","val":23418000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2011-03-31","val":23418000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011Q1I"},{"end":"2011-06-30","val":23542000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":22751000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":22062000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-03-31","val":21676000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":21676000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":21676000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":21676000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":21676000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":21068000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":20965000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":5879000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":5459000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":5459000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":5459000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":5459000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":5459000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":5297000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":5255000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":20093000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":19831000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":19831000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":19831000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":19831000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":19831000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":20066000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":49515000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":4123000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":3433000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":3433000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":3433000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":3433000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":3433000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":6291000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":6114000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":85327000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":85253000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":85253000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":85253000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":85253000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":85253000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":77940000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":77776000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":76997000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":76791000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":76791000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":76791000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":76853000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":76761000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"MachineryAndEquipmentGross":{"label":"Machinery and Equipment, Gross","description":"Amount before accumulated depreciation of tangible personal property used to produce goods and services, including, but is not limited to, tools, dies and molds, computer and office equipment.","units":{"USD":[{"end":"2012-03-31","val":93510000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2013-03-31","val":97104000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":97104000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2014-03-31","val":107378000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":107378000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2015-03-31","val":98408000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"}]}},"MarketableSecuritiesEquitySecurities":{"label":"Marketable Securities, Equity Securities (Deprecated 2018-01-31)","description":"For an unclassified balance sheet, this item represents investments in common and preferred stocks and other forms of securities that provide ownership interests in a corporation.","units":{"USD":[{"end":"2012-03-31","val":1064000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2013-03-31","val":4116000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":4116000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":4116000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":4116000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":4116000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":3354000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":3738000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":3449000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":4158000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":4158000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":4158000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":4158000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":4158000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":3600000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":3124000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":2692000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":1737000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":1737000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":1737000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":1737000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":1737000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":1545000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":1263000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":1785000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":1749000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":1749000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":1749000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":1749000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":1749000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":1879000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":1153000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":2046000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":1771000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":1771000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q1I"},{"end":"2017-06-30","val":1821000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"}]}},"MoneyMarketFundsAtCarryingValue":{"label":"Money Market Funds, at Carrying Value","description":"Investment in short-term money-market instruments (such as commercial paper, banker's acceptances, repurchase agreements, government securities, certificates of deposit, and so forth) which are highly liquid (that is, readily convertible to known amounts of cash) and so near their maturity that they present an insignificant risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify as cash equivalents by definition. Original maturity means an original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months.","units":{"USD":[{"end":"2012-03-31","val":69369000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q1I"},{"end":"2012-03-31","val":69369000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-09-30","val":71835000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":71285000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"}]}},"NetCashProvidedByUsedInFinancingActivities":{"label":"Net Cash Provided by (Used in) Financing Activities","description":"Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":11775000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-06-30","val":-1740000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-09-30","val":-5283000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2010-04-01","end":"2010-12-31","val":-5276000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-04-01","end":"2011-03-31","val":-11401000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":-11401000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":-798000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":-798000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":-7195000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-04-01","end":"2011-09-30","val":-7195000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-04-01","end":"2011-12-31","val":-7954000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":-7954000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-04-01","end":"2012-03-31","val":-7707000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":-7707000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":-7707000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":-1117000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":-1117000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":-3965000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":-3965000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-04-01","end":"2012-12-31","val":-9172000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":-9172000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-04-01","end":"2013-03-31","val":-10856000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":-10856000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":-10856000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":-441000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":-441000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":-1823000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":-1823000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-04-01","end":"2013-12-31","val":-2259000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":-2259000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-04-01","end":"2014-03-31","val":-3344000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":-3344000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":-16104000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":-16104000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":12418000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":12418000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-04-01","end":"2014-12-31","val":-2566000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":-5129000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":5015000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":-3422000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2016-04-01","end":"2016-09-30","val":-8132000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2017-04-01","end":"2017-09-30","val":5088000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"}]}},"NetCashProvidedByUsedInFinancingActivitiesContinuingOperations":{"label":"Net Cash Provided by (Used in) Financing Activities, Continuing Operations","description":"Amount of cash inflow (outflow) of financing activities, excluding discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.","units":{"USD":[{"start":"2013-04-01","end":"2014-03-31","val":-3344000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-12-31","val":-2566000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":-5129000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":-5129000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":5015000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":-3422000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-04-01","end":"2015-12-31","val":30442000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":30442000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-04-01","end":"2016-03-31","val":25977000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":25977000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":-7276000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":-7276000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":-8132000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-12-31","val":-8141000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-04-01","end":"2017-03-31","val":-6998000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":4934000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"}]}},"NetCashProvidedByUsedInInvestingActivities":{"label":"Net Cash Provided by (Used in) Investing Activities","description":"Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":-36256000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-06-30","val":-1427000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-09-30","val":-4174000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2010-04-01","end":"2010-12-31","val":-6714000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-04-01","end":"2011-03-31","val":-8941000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":-8941000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":-3009000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":-3009000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":-6448000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-04-01","end":"2011-09-30","val":-6448000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-04-01","end":"2011-12-31","val":-10924000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":-10924000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-04-01","end":"2012-03-31","val":-12375000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":-12375000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":-12375000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":-4698000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":-4698000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":-6965000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":-6965000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-04-01","end":"2012-12-31","val":-10218000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":-10218000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-04-01","end":"2013-03-31","val":-11082000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":-11082000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":-11082000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":-21246000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":-21246000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":-23622000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":-23622000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-04-01","end":"2013-12-31","val":-25512000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":-25512000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-04-01","end":"2014-03-31","val":-27134000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":-27134000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":-6277000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":-6277000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":-7208000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":-7208000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-04-01","end":"2014-12-31","val":-13558000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":-15077000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":-18272000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":-19874000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2016-04-01","end":"2016-09-30","val":-6351000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2017-04-01","end":"2017-09-30","val":-15076000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"}]}},"NetCashProvidedByUsedInInvestingActivitiesContinuingOperations":{"label":"Net Cash Provided by (Used in) Investing Activities, Continuing Operations","description":"Amount of cash inflow (outflow) of investing activities, excluding discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.","units":{"USD":[{"start":"2013-04-01","end":"2014-03-31","val":-27134000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-12-31","val":-13558000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":-15077000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":-15148000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":-18272000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":-19874000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-04-01","end":"2015-12-31","val":-20796000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":-20340000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-04-01","end":"2016-03-31","val":-22196000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":-22185000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":-3472000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":-3477000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":-6348000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-12-31","val":-8937000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-04-01","end":"2017-03-31","val":-11193000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":-4347000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"}]}},"NetCashProvidedByUsedInOperatingActivities":{"label":"Net Cash Provided by (Used in) Operating Activities","description":"Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":29166000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-06-30","val":1343000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-09-30","val":13601000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2010-04-01","end":"2010-12-31","val":20343000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-04-01","end":"2011-03-31","val":33867000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":33867000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":15079000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":15079000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":29070000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-04-01","end":"2011-09-30","val":29070000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-04-01","end":"2011-12-31","val":38101000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":38101000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-04-01","end":"2012-03-31","val":44446000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":44446000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":44446000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":11780000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":11780000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":17882000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":17882000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-04-01","end":"2012-12-31","val":27293000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":27293000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-04-01","end":"2013-03-31","val":31637000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":31637000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":31637000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":-240000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":-240000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":11272000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":11272000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-04-01","end":"2013-12-31","val":16954000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":16954000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-04-01","end":"2014-03-31","val":19329000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":19329000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":14161000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":14161000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":22684000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":22684000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-04-01","end":"2014-12-31","val":33097000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":48194000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":9449000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":17960000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2016-04-01","end":"2016-09-30","val":13398000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2017-04-01","end":"2017-09-30","val":6389000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"}]}},"NetCashProvidedByUsedInOperatingActivitiesContinuingOperations":{"label":"Net Cash Provided by (Used in) Operating Activities, Continuing Operations","description":"Amount of cash inflow (outflow) from operating activities, excluding discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.","units":{"USD":[{"start":"2013-04-01","end":"2014-03-31","val":19329000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-12-31","val":33097000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":48194000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":48194000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":9449000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":17960000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-04-01","end":"2015-12-31","val":23662000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":23662000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-04-01","end":"2016-03-31","val":29593000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":29593000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":7496000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":7496000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":13398000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-12-31","val":24879000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-04-01","end":"2017-03-31","val":34537000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":-417000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"}]}},"NetIncomeLoss":{"label":"Net Income (Loss) Attributable to Parent","description":"The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":-677000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-06-30","val":6526000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-09-30","val":13407000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":6881000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2010-04-01","end":"2010-12-31","val":20713000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-10-01","end":"2010-12-31","val":7306000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2010Q4"},{"start":"2010-04-01","end":"2011-03-31","val":36647000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":36647000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":9976000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":9976000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":20923000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-04-01","end":"2011-09-30","val":20923000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":10947000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":10947000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2011-04-01","end":"2011-12-31","val":26594000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":26594000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-10-01","end":"2011-12-31","val":5671000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-10-01","end":"2011-12-31","val":5671000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2011Q4"},{"start":"2011-04-01","end":"2012-03-31","val":30306000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":30306000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":30306000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":6007000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":6007000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":8364000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":8364000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":2357000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":2357000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":9553000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":9553000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":1189000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-10-01","end":"2012-12-31","val":1189000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4"},{"start":"2012-04-01","end":"2013-03-31","val":7648000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":7648000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":7648000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":1979000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":1979000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":5362000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":5362000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":3383000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":3383000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":5914000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":5914000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":552000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":552000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":6046000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":6046000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":6046000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":3575000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":3575000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2014-04-01","end":"2014-06-30","val":3575000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":9322000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":9322000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":5747000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-07-01","end":"2014-09-30","val":5747000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":5747000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014Q3"},{"start":"2014-04-01","end":"2014-12-31","val":15944000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":15944000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":6622000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":6622000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":6622000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":23740000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":23740000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":23740000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":7796000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1"},{"start":"2015-04-01","end":"2015-06-30","val":2985000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":2985000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2015-06-30","val":2985000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2015-04-01","end":"2015-06-30","val":2985000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":6258000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":6258000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":3273000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":3273000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-07-01","end":"2015-09-30","val":3273000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":3273000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015Q3"},{"start":"2015-04-01","end":"2015-12-31","val":8544000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":8544000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":2286000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":2286000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-10-01","end":"2015-12-31","val":2286000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":2286000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":14741000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":14741000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":6197000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2016-01-01","end":"2016-03-31","val":6197000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1"},{"start":"2016-04-01","end":"2016-06-30","val":3019000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":3019000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"start":"2016-04-01","end":"2016-06-30","val":3019000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":6954000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":6954000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":3935000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":3935000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"start":"2016-07-01","end":"2016-09-30","val":3935000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-04-01","end":"2016-12-31","val":12054000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":5100000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":5100000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q4"},{"start":"2016-04-01","end":"2017-03-31","val":21348000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":9294000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1"},{"start":"2017-04-01","end":"2017-06-30","val":5494000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":8957000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":3463000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"}]}},"NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1":{"label":"Noncash or Part Noncash Acquisition, Fixed Assets Acquired","description":"\"The amount of fixed assets that an Entity acquires in a noncash (or part noncash) acquisition. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. \"\"Part noncash\"\" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.\"","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":0,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2011-03-31","val":4780000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":4780000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":5764000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":5764000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":5764000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":0,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":0,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":0,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013"}]}},"NumberOfOperatingSegments":{"label":"Number of Operating Segments","description":"Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.","units":{"pure":[{"start":"2013-04-01","end":"2014-03-31","val":1,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-09-30","val":1,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":1,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2014Q3"},{"start":"2014-04-01","end":"2014-12-31","val":1,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":1,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":1,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":1,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":1,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":1,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":1,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":1,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":1,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2015Q3"},{"start":"2015-04-01","end":"2015-12-31","val":1,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":1,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":1,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":1,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":1,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":1,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":1,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":1,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3"},{"start":"2016-04-01","end":"2016-12-31","val":1,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":1,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4"},{"start":"2016-04-01","end":"2017-03-31","val":1,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":1,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":1,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"}]}},"NumberOfReportableSegments":{"label":"Number of Reportable Segments","description":"Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.","units":{"pure":[{"start":"2013-04-01","end":"2014-03-31","val":1,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-09-30","val":1,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":1,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2014Q3"},{"start":"2014-04-01","end":"2014-12-31","val":1,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":1,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":1,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":1,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":1,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":1,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":1,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":1,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":1,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2015Q3"},{"start":"2015-04-01","end":"2015-12-31","val":1,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":1,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":1,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":1,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":1,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":1,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":1,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":1,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3"},{"start":"2016-04-01","end":"2016-12-31","val":1,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":1,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4"},{"start":"2016-04-01","end":"2017-03-31","val":1,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":1,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":1,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"}]}},"NumberOfReportingUnits":{"label":"Number of Reporting Units","description":"Number of reporting units tested for impairment of goodwill. A reporting unit is an operating segment or one level below an operating segment.","units":{"pure":[{"start":"2015-04-01","end":"2016-03-31","val":1,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":1,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"OperatingExpenses":{"label":"Operating Expenses","description":"Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":59728000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-06-30","val":19404000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-09-30","val":38382000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":18978000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2010-04-01","end":"2010-12-31","val":57806000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-10-01","end":"2010-12-31","val":19424000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2010Q4"},{"start":"2010-04-01","end":"2011-03-31","val":78806000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":78455000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":18704000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":18704000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":35997000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-04-01","end":"2011-09-30","val":35997000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":17293000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":17293000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2011-04-01","end":"2011-12-31","val":53832000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":53832000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-10-01","end":"2011-12-31","val":17835000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-10-01","end":"2011-12-31","val":17835000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2011Q4"},{"start":"2011-04-01","end":"2012-03-31","val":80258000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":79882000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":79882000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":18476000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":18360000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":35617000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":35387000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":17141000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":17027000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":52198000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":51880000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":16581000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-10-01","end":"2012-12-31","val":16493000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4"},{"start":"2012-04-01","end":"2013-03-31","val":69553000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":69553000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":69553000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":17976000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":17976000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":39437000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":39437000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":21461000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":21461000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":60784000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":60784000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":21347000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":21347000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":83388000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":83388000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":83388000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":19721000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":19721000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":38801000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":38801000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":19080000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-07-01","end":"2014-09-30","val":19080000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2014Q3"},{"start":"2014-04-01","end":"2014-12-31","val":56700000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":56700000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":17899000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":17899000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":74455000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":74455000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":74455000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":19898000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":19898000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":38877000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":38877000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":18979000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":18979000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2015Q3"},{"start":"2015-04-01","end":"2015-12-31","val":56644000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":56644000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":17767000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":17767000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":73925000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":73925000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":18965000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":18965000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":37649000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":37649000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":18684000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":18684000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-04-01","end":"2016-12-31","val":56769000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":19120000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4"},{"start":"2016-04-01","end":"2017-03-31","val":76730000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":18175000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":39894000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":21719000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"}]}},"OperatingIncomeLoss":{"label":"Operating Income (Loss)","description":"The net result for the period of deducting operating expenses from operating revenues.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":3705000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-06-30","val":10089000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-09-30","val":22919000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":12830000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2010-04-01","end":"2010-12-31","val":32575000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-10-01","end":"2010-12-31","val":9656000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2010Q4"},{"start":"2010-04-01","end":"2011-03-31","val":43292000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":43292000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":16331000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":16331000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":30516000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-04-01","end":"2011-09-30","val":30516000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":14185000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":14185000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2011-04-01","end":"2011-12-31","val":35833000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":35833000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-10-01","end":"2011-12-31","val":5317000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-10-01","end":"2011-12-31","val":5317000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2011Q4"},{"start":"2011-04-01","end":"2012-03-31","val":39362000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":39362000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":39362000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":8713000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":8713000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":12090000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":12090000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":3377000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":3377000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":14568000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":14568000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":2478000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-10-01","end":"2012-12-31","val":2478000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4"},{"start":"2012-04-01","end":"2013-03-31","val":15327000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":15327000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":15327000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":3161000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":3161000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":9601000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":9601000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":6440000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":6440000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":14037000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":14037000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":4436000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":4436000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":16822000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":16822000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":16822000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":5279000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":5279000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2014-04-01","end":"2014-06-30","val":5279000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":12369000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":12369000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":7090000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-07-01","end":"2014-09-30","val":7090000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":7090000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014Q3"},{"start":"2014-04-01","end":"2014-12-31","val":19985000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":19985000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":7616000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":7616000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":7616000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":27510000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":27510000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":27510000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":7525000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1"},{"start":"2015-04-01","end":"2015-06-30","val":5704000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":5704000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2015-06-30","val":5704000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2015-04-01","end":"2015-06-30","val":5704000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":12737000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":12737000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":7033000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":7033000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-07-01","end":"2015-09-30","val":7033000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":7033000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015Q3"},{"start":"2015-04-01","end":"2015-12-31","val":18999000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":18999000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":6262000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":6262000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-10-01","end":"2015-12-31","val":6262000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":6262000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":25833000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":25833000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":6834000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2016-01-01","end":"2016-03-31","val":6834000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1"},{"start":"2016-04-01","end":"2016-06-30","val":5029000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":5029000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"start":"2016-04-01","end":"2016-06-30","val":5029000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":11800000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":11800000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":6771000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":6771000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"start":"2016-07-01","end":"2016-09-30","val":6771000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-04-01","end":"2016-12-31","val":19619000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":7819000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":7819000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q4"},{"start":"2016-04-01","end":"2017-03-31","val":28852000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":9233000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1"},{"start":"2017-04-01","end":"2017-06-30","val":8371000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":13439000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":5068000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"}]}},"OperatingLeasesFutureMinimumPaymentsDue":{"label":"Operating Leases, Future Minimum Payments Due","description":"Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.","units":{"USD":[{"end":"2013-03-31","val":6753000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"},{"end":"2014-03-31","val":5964000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2014Q1I"},{"end":"2015-03-31","val":6457000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"},{"end":"2016-03-31","val":5384000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2016Q1I"},{"end":"2017-03-31","val":4786000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"OperatingLeasesFutureMinimumPaymentsDueCurrent":{"label":"Operating Leases, Future Minimum Payments Due, Next Twelve Months","description":"Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.","units":{"USD":[{"end":"2013-03-31","val":1310000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"},{"end":"2014-03-31","val":1268000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2014Q1I"},{"end":"2015-03-31","val":1442000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"},{"end":"2016-03-31","val":1385000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2016Q1I"},{"end":"2017-03-31","val":1350000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"OperatingLeasesFutureMinimumPaymentsDueInFiveYears":{"label":"Operating Leases, Future Minimum Payments, Due in Five Years","description":"Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.","units":{"USD":[{"end":"2013-03-31","val":593000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"},{"end":"2014-03-31","val":648000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2014Q1I"},{"end":"2015-03-31","val":726000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"},{"end":"2016-03-31","val":565000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2016Q1I"},{"end":"2017-03-31","val":473000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"OperatingLeasesFutureMinimumPaymentsDueInFourYears":{"label":"Operating Leases, Future Minimum Payments, Due in Four Years","description":"Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.","units":{"USD":[{"end":"2013-03-31","val":673000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"},{"end":"2014-03-31","val":646000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2014Q1I"},{"end":"2015-03-31","val":910000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"},{"end":"2016-03-31","val":779000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2016Q1I"},{"end":"2017-03-31","val":667000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"OperatingLeasesFutureMinimumPaymentsDueInThreeYears":{"label":"Operating Leases, Future Minimum Payments, Due in Three Years","description":"Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.","units":{"USD":[{"end":"2013-03-31","val":776000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"},{"end":"2014-03-31","val":726000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2014Q1I"},{"end":"2015-03-31","val":1061000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"},{"end":"2016-03-31","val":980000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2016Q1I"},{"end":"2017-03-31","val":1087000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"OperatingLeasesFutureMinimumPaymentsDueInTwoYears":{"label":"Operating Leases, Future Minimum Payments, Due in Two Years","description":"Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.","units":{"USD":[{"end":"2013-03-31","val":1117000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"},{"end":"2014-03-31","val":834000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2014Q1I"},{"end":"2015-03-31","val":1249000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"},{"end":"2016-03-31","val":1156000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2016Q1I"},{"end":"2017-03-31","val":1209000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"OperatingLeasesFutureMinimumPaymentsDueThereafter":{"label":"Operating Leases, Future Minimum Payments, Due Thereafter","description":"Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.","units":{"USD":[{"end":"2013-03-31","val":2284000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"},{"end":"2014-03-31","val":1842000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2014Q1I"},{"end":"2015-03-31","val":1069000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"},{"end":"2016-03-31","val":519000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2016Q1I"}]}},"OperatingLeasesRentExpenseNet":{"label":"Operating Leases, Rent Expense, Net","description":"Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.","units":{"USD":[{"start":"2010-04-01","end":"2011-03-31","val":2100000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":1700000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":1700000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":1300000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":1300000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":1300000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":1400000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":1400000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":1400000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":1400000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":1400000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":1400000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":1600000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":1600000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":1500000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"OperatingLossCarryforwardsValuationAllowance":{"label":"Operating Loss Carryforwards, Valuation Allowance","description":"The portion of the valuation allowance pertaining to the deferred tax asset representing potential future taxable deductions from net operating loss carryforwards for which it is more likely than not that a tax benefit will not be realized.","units":{"USD":[{"end":"2015-03-31","val":8900000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"},{"end":"2016-03-31","val":13200000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2016Q1I"},{"end":"2017-03-31","val":16400000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"OtherAccruedLiabilitiesCurrent":{"label":"Other Accrued Liabilities, Current","description":"Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer.","units":{"USD":[{"end":"2012-03-31","val":2741000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":2940000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":2940000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":2940000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":2679000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":2611000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":2679000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":2838000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":2838000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":2838000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":2838000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":2838000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":2657000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":3539000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":3844000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":3407000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":3407000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":3407000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":3407000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":3407000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":3900000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":3396000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":2502000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":2703000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":2703000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":2703000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":2703000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":2703000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":2594000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":3146000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":2950000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":2860000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":2860000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":2860000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":2860000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":2860000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":2529000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":2540000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":4317000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":2416000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":2416000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":2416000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":1783000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":1813000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"OtherAssetsCurrent":{"label":"Other Assets, Current","description":"Amount of current assets classified as other.","units":{"USD":[{"end":"2011-03-31","val":8285000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-03-31","val":8285000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-03-31","val":8285000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2011-03-31","val":8285000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011Q1I"},{"end":"2011-06-30","val":5362000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":4739000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":6839000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-03-31","val":6934000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":6934000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":6934000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":6934000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":6934000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":4885000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":6569000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":5428000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":7328000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":7328000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":7328000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":7328000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":7328000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":7721000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":9181000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":8076000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":9520000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":9520000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2015-03-31","val":3413000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"}]}},"OtherAssetsMiscellaneousNoncurrent":{"label":"Other Assets, Miscellaneous, Noncurrent","description":"Amount of other miscellaneous assets expected to be realized or consumed after one year or normal operating cycle, if longer.","units":{"USD":[{"end":"2012-03-31","val":1155000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":1155000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":1155000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":1155000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":844000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":742000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":717000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":320000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":320000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":320000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":320000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":320000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":334000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":1088000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":1325000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":1352000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":1352000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":1352000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":1352000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":1352000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":582000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":654000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":818000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":576000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":576000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":576000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":576000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":576000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":734000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":626000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":727000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":686000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":686000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":686000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":686000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":686000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":692000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":3006000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":3217000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":4265000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":4615000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":1009000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":8236000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":2397000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"OtherAssetsNoncurrent":{"label":"Other Assets, Noncurrent","description":"Amount of noncurrent assets classified as other.","units":{"USD":[{"end":"2011-03-31","val":7977000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-03-31","val":7977000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-03-31","val":7977000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2011-03-31","val":7977000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011Q1I"},{"end":"2011-06-30","val":7456000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":7555000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":7421000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-03-31","val":7909000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":7909000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":7909000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":7909000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":7909000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":11031000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":12161000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":10359000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":10235000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":10235000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":10235000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":10235000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":10235000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":9553000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":10791000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":10851000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":11781000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":11781000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":11781000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":11781000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":11781000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":10368000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":9692000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":15229000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":13704000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":13704000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":13704000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":13704000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":13704000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":13671000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":13134000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":13716000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":13762000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":13762000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":13762000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":13762000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":13762000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":14171000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":15966000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":17167000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":17975000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":17975000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":17975000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":22202000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":29930000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax":{"label":"Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax","description":"Amount, after tax, of gain (loss) for (increase) decrease in value of benefit obligation for change in actuarial assumptions and increase (decrease) in value of plan assets from experience different from that assumed of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit.","units":{"USD":[{"start":"2010-04-01","end":"2011-03-31","val":1089000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":-1369000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":-1821000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012"}]}},"OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax":{"label":"Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, Tax","description":"Amount of tax expense (benefit) for (increase) decrease in value of benefit obligation for change in actuarial assumptions and increase (decrease) in value of plan assets from experience different from that assumed of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit.","units":{"USD":[{"start":"2010-04-01","end":"2011-03-31","val":577000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":415000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":418000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012"}]}},"OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax":{"label":"Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax","description":"Amount after tax, before reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.","units":{"USD":[{"start":"2010-04-01","end":"2011-03-31","val":4834000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":1509000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":-3313000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":-4822000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2011-04-01","end":"2011-12-31","val":-7251000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-10-01","end":"2011-12-31","val":-3938000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2011Q4"},{"start":"2011-04-01","end":"2012-03-31","val":-4249000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":-4249000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":-5100000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":-5100000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":-2667000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":-2667000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":2433000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":2433000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":-346000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":-346000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":2321000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-10-01","end":"2012-12-31","val":2321000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4"},{"start":"2012-04-01","end":"2013-03-31","val":-3490000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":-3490000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":-3490000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":1356000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":1356000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":5915000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":5915000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":4559000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":4559000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":8066000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":8066000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":2151000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":2151000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":7553000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":7553000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":7553000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":-280000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":-280000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":-8100000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":-8100000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":-7820000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-07-01","end":"2014-09-30","val":-7820000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2014Q3"},{"start":"2014-04-01","end":"2014-12-31","val":-12928000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":-12928000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":-4828000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":-4828000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":-24112000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":-24112000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":-24112000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":2692000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":2692000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":3561000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":3561000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":869000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":869000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2015Q3"},{"start":"2015-04-01","end":"2015-12-31","val":534000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":534000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":-3027000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":-3027000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":2938000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":2938000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":-2825000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":-2825000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":-2388000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":-2388000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":436000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":436000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-04-01","end":"2016-12-31","val":-8403000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":-6015000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4"},{"start":"2016-04-01","end":"2017-03-31","val":-8594000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":6882000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":10677000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":3795000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"}]}},"OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax":{"label":"OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax","description":"Amount, after tax and adjustment, of unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) and unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale.","units":{"USD":[{"start":"2011-04-01","end":"2012-03-31","val":-55000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":31000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":416000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":351000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":-825000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":-1241000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4"},{"start":"2012-04-01","end":"2013-03-31","val":128000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":128000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":-57000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":-343000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":-93000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":-93000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":250000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":250000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":-281000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":-281000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":-188000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":-188000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":265000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":265000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":265000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":-307000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":-307000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":-657000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":-657000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":-350000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-07-01","end":"2014-09-30","val":-350000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2014Q3"},{"start":"2014-04-01","end":"2014-12-31","val":-324000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":-324000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":333000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":333000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":-318000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":-318000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":-318000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":-117000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":-117000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":-30000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":-30000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":87000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":87000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2015Q3"},{"start":"2015-04-01","end":"2015-12-31","val":-61000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":-61000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":-31000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":-31000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":-89000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":-89000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":175000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":175000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":101000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":101000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":-74000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":-74000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-04-01","end":"2016-12-31","val":35000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":-66000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4"},{"start":"2016-04-01","end":"2017-03-31","val":-137000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":-13000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":-138000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":-125000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"}]}},"OtherComprehensiveIncomeLossAvailableForSaleSecuritiesBeforeReclassificationAdjustmentsTax":{"label":"OCI, Debt Securities, Available-for-Sale, Gain (Loss), before Adjustment, Tax","description":"Amount, before adjustment, of tax expense (benefit) for unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) and unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale.","units":{"USD":[{"start":"2011-04-01","end":"2012-03-31","val":-13000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":-363000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":196000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013"}]}},"OtherComprehensiveIncomeLossNetOfTax":{"label":"Other Comprehensive Income (Loss), Net of Tax","description":"Amount after tax and reclassification adjustments of other comprehensive income (loss).","units":{"USD":[{"start":"2010-04-01","end":"2011-03-31","val":5883000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":-5673000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":-5673000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":-5183000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":-5183000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":-5183000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":8122000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":8122000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":8122000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":-28117000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":-28117000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":-28117000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":2822000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":2822000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":-8279000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease":{"label":"Other Comprehensive Income (Loss), Net of Tax (Deprecated 2012-01-31)","description":"This element represents Other Comprehensive Income or Loss, Net of Tax, for the period. Includes deferred gains or losses on qualifying hedges, unrealized holding gains or losses on available-for-sale securities, minimum pension liability, and cumulative translation adjustment. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":-90000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2011-03-31","val":5883000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":11476000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":17521000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":6045000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2011-04-01","end":"2011-12-31","val":19268000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-10-01","end":"2011-12-31","val":1747000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2011Q4"},{"start":"2011-04-01","end":"2012-03-31","val":-5673000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":972000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":6113000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":5141000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":8382000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-10-01","end":"2012-12-31","val":2269000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4"}]}},"OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsNetOfTax":{"label":"Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, after Tax","description":"Amount, after tax, before reclassification adjustment, of (increase) decrease in accumulated other comprehensive income of defined benefit plan, that has not been recognized in net periodic benefit cost (credit).","units":{"USD":[{"start":"2012-04-01","end":"2013-03-31","val":1957000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":-89000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":-89000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":3830000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":3830000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":3830000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":71000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":71000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":-196000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax":{"label":"Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax","description":"Amount, after tax and reclassification adjustment, of (increase) decrease in accumulated other comprehensive income for defined benefit plan.","units":{"USD":[{"start":"2012-04-01","end":"2013-03-31","val":1821000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":-304000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":-304000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":3687000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":3687000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":3687000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":27000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":27000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":-452000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBeforeReclassificationAdjustmentsTax":{"label":"Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, Tax","description":"Amount, before reclassification adjustment, of tax (expense) benefit for (increase) decrease in accumulated other comprehensive income for defined benefit plan.","units":{"USD":[{"start":"2011-04-01","end":"2012-03-31","val":-431000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":-449000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":-449000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":8000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":8000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":-8000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":-960000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":960000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":960000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":634000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":634000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":-100000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"OtherComprehensiveIncomeLossReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax":{"label":"Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Net of Tax (Deprecated 2013-01-31)","description":"Net of tax amount of the income statement impact of the reclassification adjustment for unrealized gain (loss) realized upon the sale of available-for-sale securities.","units":{"USD":[{"start":"2012-04-01","end":"2012-06-30","val":34000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2013-04-01","end":"2013-06-30","val":-286000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2"}]}},"OtherComprehensiveIncomeLossReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeTax":{"label":"Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Tax (Deprecated 2013-01-31)","description":"Tax effect of the income statement impact of the reclassification adjustment for unrealized gain (loss) realized upon the sale of available-for-sale securities.","units":{"USD":[{"start":"2012-04-01","end":"2012-06-30","val":17000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2013-04-01","end":"2013-06-30","val":-31000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2"}]}},"OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax":{"label":"Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax","description":"Amount after tax of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.","units":{"USD":[{"start":"2011-04-01","end":"2012-03-31","val":32000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-09-30","val":-31000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":0,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":-31000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":0,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4"},{"start":"2012-04-01","end":"2013-03-31","val":-800000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":-800000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":58000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":57000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":58000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":0,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":0,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":57000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":58000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":0,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":0,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":96000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":96000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":96000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":19000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":19000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":19000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":19000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":0,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3"},{"start":"2014-04-01","end":"2014-12-31","val":-595000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":-595000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":-614000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":-614000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":-1218000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":-1218000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":-1218000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-09-30","val":-272000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":-272000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":-272000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":-272000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2015Q3"},{"start":"2015-04-01","end":"2015-12-31","val":-276000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":-276000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":-4000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":-4000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":-273000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":-273000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":-90000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":-90000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":31000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":31000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":121000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":121000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-04-01","end":"2016-12-31","val":31000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-04-01","end":"2017-03-31","val":31000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax":{"label":"Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax","description":"Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.","units":{"USD":[{"start":"2011-04-01","end":"2012-03-31","val":-17000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-09-30","val":17000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":0,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":17000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":0,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4"},{"start":"2012-04-01","end":"2013-03-31","val":431000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":431000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":-31000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":-31000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":-31000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":0,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":0,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":-31000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":-31000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":0,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":0,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":-52000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":-52000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":52000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":-11000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":-11000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":-11000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":-11000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":0,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3"},{"start":"2014-04-01","end":"2014-12-31","val":320000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":320000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":331000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":331000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":655000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":-655000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":-655000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":182000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":-182000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":182000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":-182000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2015Q3"},{"start":"2015-04-01","end":"2015-12-31","val":185000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":-185000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":3000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":-3000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":-182000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":-182000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":-61000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":61000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":19000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":19000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":80000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":80000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-04-01","end":"2016-12-31","val":19000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":0,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4"},{"start":"2016-04-01","end":"2017-03-31","val":19000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax":{"label":"Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, after Tax","description":"Amount, after tax, of reclassification adjustment from accumulated other comprehensive (income) loss for net periodic benefit cost (credit) of defined benefit plan.","units":{"USD":[{"start":"2012-04-01","end":"2013-03-31","val":136000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":215000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":215000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":143000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":143000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":143000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":44000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":44000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":256000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax":{"label":"Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, Tax","description":"Amount of tax (expense) benefit for reclassification adjustment from accumulated other comprehensive (income) loss of defined benefit plan.","units":{"USD":[{"start":"2011-04-01","end":"2012-03-31","val":16000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":31000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":31000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":21000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":21000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":21000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":36000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":36000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":36000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":393000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":393000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":131000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax":{"label":"OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax","description":"Amount, after tax and before adjustment, of unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale.","units":{"USD":[{"start":"2010-04-01","end":"2011-03-31","val":-40000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":-9000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":-89000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":-80000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2011-04-01","end":"2011-12-31","val":-75000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-10-01","end":"2011-12-31","val":14000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2011Q4"},{"start":"2011-04-01","end":"2012-03-31","val":-55000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":-23000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":65000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":65000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":416000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":385000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":351000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":351000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":-825000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":-856000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":-1241000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-10-01","end":"2012-12-31","val":-1241000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4"},{"start":"2012-04-01","end":"2013-03-31","val":128000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":-672000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":-672000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":-343000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":-285000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":-36000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":-35000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":250000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":250000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":-224000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":-223000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":-188000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":-188000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":361000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":361000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":361000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":-288000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":-288000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":-638000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":-638000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":-350000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-07-01","end":"2014-09-30","val":-350000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2014Q3"},{"start":"2014-04-01","end":"2014-12-31","val":-919000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":-919000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":-281000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":-281000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":-1536000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":-1536000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":-1536000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":-117000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":-117000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":-302000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":-302000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":-185000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":-185000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2015Q3"},{"start":"2015-04-01","end":"2015-12-31","val":-337000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":-337000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":-35000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":-35000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":-362000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":-362000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":85000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":85000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":132000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":132000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":47000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":47000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-04-01","end":"2016-12-31","val":66000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":-66000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4"},{"start":"2016-04-01","end":"2017-03-31","val":-106000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":-13000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":-138000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":-125000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"}]}},"OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax":{"label":"OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, Tax","description":"Amount, before adjustment, of tax expense (benefit) for unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes tax expense (benefit) for unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale.","units":{"USD":[{"start":"2010-04-01","end":"2011-03-31","val":-22000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":-5000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":-48000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":-43000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2011-04-01","end":"2011-12-31","val":-40000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-10-01","end":"2011-12-31","val":8000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2011Q4"},{"start":"2011-04-01","end":"2012-03-31","val":-30000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":35000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":18000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":224000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":207000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":189000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":189000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":-444000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":-461000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":-668000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-10-01","end":"2012-12-31","val":-668000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4"},{"start":"2012-04-01","end":"2013-03-31","val":68000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":-363000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":-152000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":-152000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":-18000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":-18000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":134000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":134000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":-119000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":-119000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":-101000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":-101000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":196000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":196000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":-154000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":-154000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":-342000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-07-01","end":"2014-09-30","val":-188000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3"},{"start":"2014-04-01","end":"2014-12-31","val":-493000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":-493000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":-151000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":-151000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":-825000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":-825000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":-825000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":-78000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":-78000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":-202000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":-124000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2015Q3"},{"start":"2015-04-01","end":"2015-12-31","val":-226000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":-226000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":-24000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":-24000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":-231000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":-231000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":45000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":45000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":76000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":76000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":31000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":31000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-04-01","end":"2016-12-31","val":32000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":-44000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4"},{"start":"2016-04-01","end":"2017-03-31","val":-82000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":-8000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":-92000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":-84000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"}]}},"OtherDepreciationAndAmortization":{"label":"Other Depreciation and Amortization","description":"Amount of expense charged against earnings to allocate the cost of tangible and intangible assets over their remaining economic lives, classified as other.","units":{"USD":[{"start":"2010-04-01","end":"2010-06-30","val":4708000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-09-30","val":9370000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-04-01","end":"2011-06-30","val":3377000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":6807000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"}]}},"OtherLiabilitiesNoncurrent":{"label":"Other Liabilities, Noncurrent","description":"Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer.","units":{"USD":[{"end":"2011-03-31","val":8934000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-03-31","val":8934000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-03-31","val":8934000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011Q1I"},{"end":"2011-06-30","val":8931000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":8928000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2012-03-31","val":6456000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":6456000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2013-03-31","val":6877000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":6877000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":6877000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":6877000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":6877000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":21865000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":21999000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":6865000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":7105000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":7105000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":7105000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":7105000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":7105000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":7105000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":7105000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":7093000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":7095000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":7095000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":7095000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":7095000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":7095000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":7262000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":7244000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":6450000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":7336000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":7336000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":7336000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":7336000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":7336000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":7197000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":7169000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":7143000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":6618000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":6618000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":6618000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":6591000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":6579000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"OtherLongTermInvestments":{"label":"Other Long-term Investments","description":"Amount of long-term investments classified as other.","units":{"USD":[{"end":"2012-03-31","val":5340000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q1I"},{"end":"2012-03-31","val":5340000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":5340000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-06-30","val":5038000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":5130000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":5279000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"}]}},"OtherNoncashIncomeExpense":{"label":"Other Noncash Income (Expense)","description":"Amount of income (expense) included in net income that results in no cash inflow (outflow), classified as other.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":101000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-12-31","val":794000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-04-01","end":"2011-03-31","val":-3442000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":-3442000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":-471000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":757000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-04-01","end":"2011-12-31","val":1380000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":1380000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-04-01","end":"2012-03-31","val":1212000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":1212000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":1212000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":497000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":497000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":470000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":470000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-04-01","end":"2012-12-31","val":366000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":366000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-04-01","end":"2013-03-31","val":-220000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":-220000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":110000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":110000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":-418000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":-418000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-04-01","end":"2013-12-31","val":-760000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":-760000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-04-01","end":"2014-03-31","val":-854000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":-312000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":169000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":169000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":2054000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":2054000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-04-01","end":"2014-12-31","val":3078000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":3078000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":5033000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":5020000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":-248000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":-248000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":-719000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":-719000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-04-01","end":"2015-12-31","val":-505000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":-505000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-04-01","end":"2016-03-31","val":-214000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":-63000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":111000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":111000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":79000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":79000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-04-01","end":"2016-12-31","val":-1059000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-04-01","end":"2017-03-31","val":173000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":-69000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":-62000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"}]}},"OtherNonoperatingIncomeExpense":{"label":"Other Nonoperating Income (Expense)","description":"Amount of income (expense) related to nonoperating activities, classified as other.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":-141000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-06-30","val":2780000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-09-30","val":818000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":-1961000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2010-04-01","end":"2010-12-31","val":1443000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-10-01","end":"2010-12-31","val":625000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2010Q4"},{"start":"2010-04-01","end":"2011-03-31","val":836000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":836000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":-394000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":-394000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":1267000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-04-01","end":"2011-09-30","val":1267000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":1661000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":1661000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2011-04-01","end":"2011-12-31","val":2129000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":2129000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-10-01","end":"2011-12-31","val":862000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-10-01","end":"2011-12-31","val":862000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2011Q4"},{"start":"2011-04-01","end":"2012-03-31","val":1941000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":1941000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":1941000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":701000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":701000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":907000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":907000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":206000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":206000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":515000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":515000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":-392000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-10-01","end":"2012-12-31","val":-392000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4"},{"start":"2012-04-01","end":"2013-03-31","val":-41000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":-41000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":-41000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":-83000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":-83000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":-1335000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":-1335000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":-1252000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":-1252000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":-2136000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":-2136000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":-801000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":-801000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":-1941000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":-1941000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":-1941000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":208000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":208000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":2373000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":2373000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":2165000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-07-01","end":"2014-09-30","val":2165000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2014Q3"},{"start":"2014-04-01","end":"2014-12-31","val":2481000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":2481000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":108000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":108000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":4077000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":4077000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":4077000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":-790000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":-790000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":-1800000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":-1800000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":-1010000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":-1010000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2015Q3"},{"start":"2015-04-01","end":"2015-12-31","val":-1510000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":-1510000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":290000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":290000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":-915000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":-915000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":815000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":815000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":1401000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":1401000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":586000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":586000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-04-01","end":"2016-12-31","val":1291000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":-110000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4"},{"start":"2016-04-01","end":"2017-03-31","val":2328000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":-515000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":-705000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":-190000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"}]}},"OtherRestructuringCosts":{"label":"Other Restructuring Costs","description":"Amount of other expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses associated with a discontinued operation or an asset retirement obligation.","units":{"USD":[{"start":"2012-04-01","end":"2013-03-31","val":217000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012"}]}},"OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet":{"label":"Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net","description":"The amount of other than temporary impairment (OTTI) losses on equity securities, OTTI related to credit losses on debt securities, and OTTI losses on debt securities when the entity intends to sell the securities or it is more likely than not that the entity will be required to sell the securities before recovery of its amortized cost basis. Additionally, this item includes OTTI losses recognized during the period on investments accounted for under the cost method of accounting.","units":{"USD":[{"start":"2010-04-01","end":"2011-03-31","val":0,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":0,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":0,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":1342000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":1342000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":1342000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":7000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":7000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":7000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":1903000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":1903000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":454000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015"}]}},"PaymentsForRepurchaseOfCommonStock":{"label":"Payments for Repurchase of Common Stock","description":"The cash outflow to reacquire common stock during the period.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":288000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-06-30","val":1027000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-09-30","val":3665000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2010-04-01","end":"2010-12-31","val":4005000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-04-01","end":"2011-03-31","val":4005000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":4005000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":1550000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":1550000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":7037000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-04-01","end":"2011-09-30","val":7037000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-04-01","end":"2011-12-31","val":7576000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":7576000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-04-01","end":"2012-03-31","val":7576000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":7576000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":7576000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":0,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":2118000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":2118000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-04-01","end":"2012-12-31","val":6505000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":6505000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-04-01","end":"2013-03-31","val":6505000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":6505000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":6505000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-09-30","val":433000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":433000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-04-01","end":"2013-12-31","val":493000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":493000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-04-01","end":"2014-03-31","val":602000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":602000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":602000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-09-30","val":0,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-12-31","val":0,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":0,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014"},{"start":"2015-04-01","end":"2015-09-30","val":6440000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":6440000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-04-01","end":"2015-12-31","val":6440000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":6440000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-04-01","end":"2016-03-31","val":8352000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":8352000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":1213000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"PaymentsForRestructuring":{"label":"Payments for Restructuring","description":"Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.","units":{"USD":[{"start":"2013-04-01","end":"2013-06-30","val":0,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-06-30","val":0,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":0,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q3"},{"start":"2013-07-01","end":"2013-09-30","val":0,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-10-01","end":"2013-12-31","val":0,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4"}]}},"PaymentsOfDividendsCommonStock":{"label":"Payments of Ordinary Dividends, Common Stock","description":"Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity.","units":{"USD":[{"start":"2010-04-01","end":"2011-03-31","val":0,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-12-31","val":0,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-04-01","end":"2012-03-31","val":0,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":0,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":0,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":0,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-04-01","end":"2012-12-31","val":928000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":928000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-04-01","end":"2013-03-31","val":1854000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":1854000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":1854000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":931000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":931000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":1865000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":1865000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-04-01","end":"2013-12-31","val":2803000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":2803000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-04-01","end":"2014-03-31","val":3744000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":3744000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":3744000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":943000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":943000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":2047000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":2047000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-04-01","end":"2014-12-31","val":2047000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":2047000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":4263000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":4263000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":4263000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-09-30","val":2374000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":2374000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-04-01","end":"2015-12-31","val":3635000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":3635000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-04-01","end":"2016-03-31","val":4896000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":4896000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-09-30","val":1258000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":1258000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-04-01","end":"2016-12-31","val":1258000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-04-01","end":"2017-03-31","val":1258000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"PaymentsRelatedToTaxWithholdingForShareBasedCompensation":{"label":"Payment, Tax Withholding, Share-based Payment Arrangement","description":"Amount of cash outflow to satisfy grantee's tax withholding obligation for award under share-based payment arrangement.","units":{"USD":[{"start":"2016-04-01","end":"2016-06-30","val":0,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2017-04-01","end":"2017-06-30","val":490000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"}]}},"PaymentsToAcquireAvailableForSaleSecurities":{"label":"Payments to Acquire Available-for-sale Securities","description":"The cash outflow to acquire debt and equity securities not classified as either held-to-maturity securities or trading securities which would be classified as available-for-sale securities and reported at fair value, with unrealized gains and losses excluded from earnings and reported in a separate component of shareholders' equity.","units":{"USD":[{"start":"2010-04-01","end":"2010-06-30","val":35000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-09-30","val":121000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-04-01","end":"2011-06-30","val":8000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":188000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"}]}},"PaymentsToAcquireBusinessesNetOfCashAcquired":{"label":"Payments to Acquire Businesses, Net of Cash Acquired","description":"The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":30631000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2011-03-31","val":0,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":0,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":0,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":0,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":0,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-04-01","end":"2012-12-31","val":0,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-04-01","end":"2013-03-31","val":0,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":0,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":20000000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":20000000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":20000000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":20000000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-04-01","end":"2013-12-31","val":20000000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":20000000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-04-01","end":"2014-03-31","val":20000000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":20000000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":20000000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":2297000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":2297000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":2297000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":2297000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-04-01","end":"2014-12-31","val":2297000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":2297000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":2297000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":2297000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":2297000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":14571000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":14571000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":14571000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":14571000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-04-01","end":"2015-12-31","val":14571000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":14472000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-04-01","end":"2016-03-31","val":14571000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":14472000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"}]}},"PaymentsToAcquireInvestments":{"label":"Payments to Acquire Investments","description":"The cash outflow associated with the purchase of all investments (debt, security, other) during the period.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":618000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-12-31","val":135000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-04-01","end":"2011-03-31","val":561000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":561000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":8000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":188000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-04-01","end":"2011-12-31","val":366000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":366000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-04-01","end":"2012-03-31","val":1048000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":1048000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":1048000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":3919000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":3919000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":4517000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":4517000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-04-01","end":"2012-12-31","val":4517000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":4517000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-04-01","end":"2013-03-31","val":4538000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":4538000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":4538000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":0,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":0,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-12-31","val":0,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":0,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-04-01","end":"2014-03-31","val":0,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":0,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2013"},{"start":"2014-04-01","end":"2014-12-31","val":5887000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":5887000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":5887000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":5887000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":5887000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-09-30","val":29000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-04-01","end":"2015-12-31","val":629000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":629000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-04-01","end":"2016-03-31","val":629000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":629000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-09-30","val":2000000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":2000000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-04-01","end":"2016-12-31","val":3540000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-04-01","end":"2017-03-31","val":4725000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":2203000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":9115000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"}]}},"PaymentsToAcquirePropertyPlantAndEquipment":{"label":"Payments to Acquire Property, Plant, and Equipment","description":"The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":5142000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-06-30","val":1361000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-09-30","val":3940000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2010-04-01","end":"2010-12-31","val":6765000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-04-01","end":"2011-03-31","val":8855000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":8855000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":3019000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":3019000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":6296000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-04-01","end":"2011-09-30","val":6296000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-04-01","end":"2011-12-31","val":10864000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":10864000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-04-01","end":"2012-03-31","val":11842000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":11842000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":11842000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":1118000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":1118000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":2780000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":2780000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-04-01","end":"2012-12-31","val":6288000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":6288000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-04-01","end":"2013-03-31","val":7192000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":7192000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":7192000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":1566000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":1566000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":3929000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":3929000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-04-01","end":"2013-12-31","val":5813000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":5813000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-04-01","end":"2014-03-31","val":7623000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":7623000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":7623000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":3423000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":3423000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":4609000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":4609000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-04-01","end":"2014-12-31","val":5468000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":5468000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":7018000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":7018000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":7018000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":3696000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":3696000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":4445000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":4445000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-04-01","end":"2015-12-31","val":5265000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":5265000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-04-01","end":"2016-03-31","val":7110000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":7110000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":3477000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":3477000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":5156000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":5156000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-04-01","end":"2016-12-31","val":6202000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-04-01","end":"2017-03-31","val":7377000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":2144000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":6030000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"}]}},"PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent":{"label":"Liability, Defined Benefit Plan, Noncurrent","description":"Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans, classified as noncurrent.","units":{"USD":[{"end":"2011-03-31","val":14545000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-03-31","val":14545000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q1I"},{"end":"2011-06-30","val":14541000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":13707000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2012-03-31","val":15001000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":15001000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-12-31","val":14266000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":16330000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":16330000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":16330000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":16330000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":16330000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":16150000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":16448000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":16349000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":15545000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":15545000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":15545000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":15545000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":15545000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":15209000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":13882000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":12966000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":17232000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":17232000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":17232000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":17232000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":17232000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":17514000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":17179000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":16394000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":16307000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":16307000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":16307000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":16307000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":16307000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":15620000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":15424000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":14348000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":14901000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":14901000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":14901000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":15558000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":15839000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"PreferredStockParOrStatedValuePerShare":{"label":"Preferred Stock, Par or Stated Value Per Share","description":"Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.","units":{"USD/shares":[{"end":"2011-03-31","val":0.01,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-03-31","val":0.01,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-03-31","val":0.01,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2011-03-31","val":0.01,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011Q1I"},{"end":"2011-06-30","val":0.01,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":0.01,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":0.01,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-03-31","val":0.01,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":0.01,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":0.01,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":0.01,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":0.01,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":0.01,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":0.01,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":0.01,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":0.01,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":0.01,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":0.01,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":0.01,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":0.01,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":0.01,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":0.01,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":0.01,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":0.01,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":0.01,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":0.01,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":0.01,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":0.01,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":0.01,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":0.01,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":0.01,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":0.01,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":0.01,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":0.01,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":0.01,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":0.01,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":0.01,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":0.01,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":0.01,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":0.01,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":0.01,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":0.01,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":0.01,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":0.01,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":0.01,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":0.01,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":0.01,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":0.01,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":0.01,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":0.01,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":0.01,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":0.01,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"PreferredStockSharesAuthorized":{"label":"Preferred Stock, Shares Authorized","description":"The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.","units":{"shares":[{"end":"2011-03-31","val":5000000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-03-31","val":5000000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-03-31","val":5000000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2011-03-31","val":5000000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011Q1I"},{"end":"2011-06-30","val":5000000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":5000000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":5000000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-03-31","val":5000000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":5000000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":5000000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":5000000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":5000000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":5000000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":5000000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":5000000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":5000000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":5000000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":5000000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":5000000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":5000000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":5000000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":5000000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":5000000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":5000000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":5000000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":5000000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":5000000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":5000000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":5000000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":5000000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":5000000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":5000000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":5000000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":5000000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":5000000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":5000000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":5000000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":5000000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":5000000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":5000000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":5000000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":5000000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":5000000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":5000000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":5000000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":5000000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":5000000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":5000000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":5000000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":5000000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":5000000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":5000000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"PreferredStockSharesIssued":{"label":"Preferred Stock, Shares Issued","description":"Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.","units":{"shares":[{"end":"2011-03-31","val":0,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-03-31","val":0,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-03-31","val":0,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2011-03-31","val":0,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011Q1I"},{"end":"2011-06-30","val":0,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":0,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":0,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-03-31","val":0,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":0,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":0,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":0,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":0,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":0,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":0,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":0,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":0,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":0,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":0,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":0,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":0,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":0,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":0,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":0,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":0,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":0,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":0,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":0,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":0,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":0,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":0,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":0,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":0,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":0,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":0,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":0,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":0,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":0,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":0,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":0,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":0,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":0,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":0,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":0,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":0,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":0,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":0,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":0,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":0,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":0,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":0,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":0,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":0,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"PreferredStockSharesOutstanding":{"label":"Preferred Stock, Shares Outstanding","description":"Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased.","units":{"shares":[{"end":"2011-03-31","val":0,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-03-31","val":0,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-03-31","val":0,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2011-03-31","val":0,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011Q1I"},{"end":"2011-06-30","val":0,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":0,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":0,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-03-31","val":0,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":0,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":0,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":0,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":0,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":0,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":0,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":0,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":0,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":0,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":0,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":0,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":0,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":0,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":0,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":0,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":0,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":0,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":0,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":0,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":0,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":0,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":0,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":0,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":0,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":0,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":0,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":0,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":0,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":0,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":0,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":0,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":0,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":0,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":0,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":0,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":0,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":0,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":0,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":0,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":0,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":0,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":0,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":0,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":0,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"PreferredStockValueOutstanding":{"label":"Preferred Stock, Value, Outstanding","description":"Value of all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by shareholders, which is net of related treasury stock. May be all or a portion of the number of preferred shares authorized. These shares represent the ownership interest of the preferred shareholders.","units":{"USD":[{"end":"2011-03-31","val":0,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-03-31","val":0,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-03-31","val":0,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2011-03-31","val":0,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011Q1I"},{"end":"2011-06-30","val":0,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":0,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":0,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-03-31","val":0,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":0,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":0,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":0,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":0,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":0,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":0,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":0,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":0,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":0,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":0,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":0,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":0,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":0,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":0,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":0,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":0,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":0,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":0,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":0,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":0,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":0,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":0,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":0,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":0,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"}]}},"PrepaidExpenseAndOtherAssetsCurrent":{"label":"Prepaid Expense and Other Assets, Current","description":"Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer.","units":{"USD":[{"end":"2014-03-31","val":9520000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":9520000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":9520000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q1I"},{"end":"2014-06-30","val":3344000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":3675000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":3169000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":3413000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":3413000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":3413000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":3413000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":3590000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":3643000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":3876000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":4203000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":4203000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":4203000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":4203000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":4203000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":4028000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":4189000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":5996000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":3977000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":3977000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":3977000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":6488000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":7138000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"ProceedsFromIssuanceOfLongTermDebt":{"label":"Proceeds from Issuance of Long-term Debt","description":"The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":15000000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-12-31","val":0,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-04-01","end":"2011-03-31","val":0,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":0,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":423000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":423000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-04-01","end":"2011-12-31","val":423000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":423000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-04-01","end":"2012-03-31","val":423000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":423000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":423000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":0,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":0,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-12-31","val":0,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2013-03-31","val":0,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":0,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2012"},{"start":"2013-04-01","end":"2013-09-30","val":0,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-04-01","end":"2013-12-31","val":0,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-04-01","end":"2014-03-31","val":0,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013"},{"start":"2014-04-01","end":"2014-09-30","val":30000000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":30000000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-04-01","end":"2014-12-31","val":30000000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":30000000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":30000000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":30000000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":3317000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":3317000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":3317000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":3317000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-04-01","end":"2015-12-31","val":82967000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":82967000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-04-01","end":"2016-03-31","val":82967000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":82967000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"}]}},"ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans":{"label":"Proceeds, Issuance of Shares, Share-based Payment Arrangement, Excluding Option Exercised","description":"Amount of cash inflow from issuance of shares under share-based payment arrangement. Excludes option exercised.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":1319000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2011-03-31","val":3866000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":3866000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-09-30","val":1795000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-04-01","end":"2011-12-31","val":2741000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-04-01","end":"2012-03-31","val":3379000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":3379000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":3379000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":567000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":762000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":762000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-04-01","end":"2012-12-31","val":1620000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":1620000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-04-01","end":"2013-03-31","val":1982000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":1982000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":1982000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":1349000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":1349000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":2211000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":2211000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-04-01","end":"2013-12-31","val":3456000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":3456000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-04-01","end":"2014-03-31","val":4420000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":4420000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":4420000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":811000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":811000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":1430000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":1430000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-04-01","end":"2014-12-31","val":2360000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":2360000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":2587000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":2587000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":2692000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":2468000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":2468000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":3431000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":3431000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-04-01","end":"2015-12-31","val":4251000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":4251000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-04-01","end":"2016-03-31","val":4336000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":4336000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":694000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":1355000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-12-31","val":1921000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-04-01","end":"2017-03-31","val":4524000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions":{"label":"Proceeds, Issuance of Shares, Share-based Payment Arrangement, Including Option Exercised","description":"Amount of cash inflow from issuance of shares under share-based payment arrangement. Includes, but is not limited to, option exercised.","units":{"USD":[{"start":"2016-04-01","end":"2016-06-30","val":694000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":1355000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2017-04-01","end":"2017-06-30","val":5212000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":6097000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"}]}},"ProceedsFromLinesOfCredit":{"label":"Proceeds from Lines of Credit","description":"Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.","units":{"USD":[{"start":"2012-04-01","end":"2013-03-31","val":0,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":0,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":30000000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014"}]}},"ProceedsFromLongTermLinesOfCredit":{"label":"Proceeds from Long-term Lines of Credit","description":"The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer.","units":{"USD":[{"start":"2010-04-01","end":"2010-06-30","val":0,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-09-30","val":0,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-04-01","end":"2011-06-30","val":423000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":423000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"}]}},"ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities":{"label":"Proceeds from Sale and Maturity of Debt Securities, Available-for-sale","description":"Amount of cash inflow from sale, maturity, prepayment and call of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).","units":{"USD":[{"start":"2010-04-01","end":"2010-06-30","val":0,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-09-30","val":0,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-04-01","end":"2011-06-30","val":25000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":25000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"}]}},"ProceedsFromSaleOfAvailableForSaleSecurities":{"label":"Proceeds from Sale of Available-for-sale Securities","description":"The cash inflow associated with the sale of debt and equity securities classified as available-for-sale securities.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":506000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-12-31","val":255000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-04-01","end":"2011-03-31","val":255000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":255000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":25000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":25000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-04-01","end":"2011-12-31","val":232000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":232000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-04-01","end":"2012-03-31","val":431000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":431000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":431000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":387000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":387000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":387000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":387000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-04-01","end":"2012-12-31","val":401000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":401000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-04-01","end":"2013-03-31","val":453000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":453000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":453000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":324000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":324000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":324000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":324000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-04-01","end":"2013-12-31","val":324000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":324000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-04-01","end":"2014-03-31","val":512000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":512000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":512000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":54000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":54000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":54000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-12-31","val":54000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":54000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":54000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":54000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-09-30","val":50000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-04-01","end":"2015-12-31","val":26000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-04-01","end":"2016-03-31","val":26000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":26000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-09-30","val":805000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":805000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-04-01","end":"2016-12-31","val":805000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-04-01","end":"2017-03-31","val":810000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"ProceedsFromSaleOfPropertyPlantAndEquipment":{"label":"Proceeds from Sale of Property, Plant, and Equipment","description":"The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":42000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2011-03-31","val":0,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":0,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011"},{"start":"2016-04-01","end":"2017-03-31","val":99000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"ProceedsFromStockPlans":{"label":"Proceeds from Stock Plans","description":"The cash inflow associated with the amount received from the stock plan during the period.","units":{"USD":[{"start":"2010-04-01","end":"2010-06-30","val":409000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-09-30","val":593000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2010-04-01","end":"2010-12-31","val":2142000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-06-30","val":1443000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":1443000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-09-30","val":1795000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-04-01","end":"2011-12-31","val":2741000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2012-04-01","end":"2012-06-30","val":567000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2"}]}},"PropertyPlantAndEquipmentGross":{"label":"Property, Plant and Equipment, Gross","description":"Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.","units":{"USD":[{"end":"2012-03-31","val":170235000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2013-03-31","val":172027000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":172027000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2014-03-31","val":184833000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":184833000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2015-03-31","val":166262000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":166262000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2016-03-31","val":175912000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":175912000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2017-03-31","val":176364000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"PropertyPlantAndEquipmentNet":{"label":"Property, Plant and Equipment, Net","description":"Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.","units":{"USD":[{"end":"2011-03-31","val":52311000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-03-31","val":52311000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-03-31","val":52311000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2011-03-31","val":52311000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011Q1I"},{"end":"2011-06-30","val":54535000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":55378000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":56437000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-03-31","val":56071000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":56071000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":56071000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":56071000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":56071000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":53149000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":52760000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":54331000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":51995000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":51995000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":51995000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":51995000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":51995000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":51461000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":52281000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":51915000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":50569000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":50569000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":50569000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":50569000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":50569000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2014-03-31","val":50569000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":51141000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":48010000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":45565000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":42545000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":42545000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":42545000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":42545000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":42545000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2015-03-31","val":42545000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":44371000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":43534000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":42194000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":42623000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":42623000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":42623000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":42623000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":42623000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":44325000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":43678000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":41738000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":42240000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":42240000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":42240000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":44065000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":47107000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"ProvisionForDoubtfulAccounts":{"label":"Accounts Receivable, Credit Loss Expense (Reversal)","description":"Amount of expense (reversal of expense) for expected credit loss on accounts receivable.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":4864000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-12-31","val":5860000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-04-01","end":"2011-03-31","val":8534000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":8534000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":2434000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":4880000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-04-01","end":"2011-12-31","val":7177000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":7177000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-04-01","end":"2012-03-31","val":8524000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":8524000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":8524000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":3102000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":3102000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":6217000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":6217000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-04-01","end":"2012-12-31","val":8305000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":8305000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-04-01","end":"2013-03-31","val":10064000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":10064000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":10064000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":1672000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":1672000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":4282000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":4282000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-04-01","end":"2013-12-31","val":6389000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":6389000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-04-01","end":"2014-03-31","val":8563000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":8563000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":8563000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":2617000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":2617000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":5516000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":5516000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-04-01","end":"2014-12-31","val":7264000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":7264000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":8935000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":8935000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":8935000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":1407000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":1407000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":2903000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":2903000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-04-01","end":"2015-12-31","val":4811000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":4811000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-04-01","end":"2016-03-31","val":6795000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":6795000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":1610000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":1610000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":4517000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":4517000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-04-01","end":"2016-12-31","val":7518000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-04-01","end":"2017-03-31","val":10854000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":2428000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":5580000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"}]}},"PurchaseObligation":{"label":"Purchase Obligation","description":"Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier.","units":{"USD":[{"end":"2016-03-31","val":25334000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2016Q1I"},{"end":"2017-03-31","val":26476000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"PurchaseObligationDueAfterFifthYear":{"label":"Purchase Obligation, to be Paid, after Year Five","description":"Amount of purchase arrangement to be paid after fifth fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2016-03-31","val":0,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2016Q1I"}]}},"PurchaseObligationDueInFifthYear":{"label":"Purchase Obligation, to be Paid, Year Five","description":"Amount of purchase arrangement to be paid in fifth fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2016-03-31","val":0,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2016Q1I"},{"end":"2017-03-31","val":0,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"PurchaseObligationDueInFourthYear":{"label":"Purchase Obligation, to be Paid, Year Four","description":"Amount of purchase arrangement to be paid in fourth fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2016-03-31","val":0,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2016Q1I"},{"end":"2017-03-31","val":0,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"PurchaseObligationDueInNextTwelveMonths":{"label":"Purchase Obligation, to be Paid, Year One","description":"Amount of purchase arrangement to be paid in next fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2016-03-31","val":24489000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2016Q1I"},{"end":"2017-03-31","val":23700000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"PurchaseObligationDueInSecondYear":{"label":"Purchase Obligation, to be Paid, Year Two","description":"Amount of purchase arrangement to be paid in second fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2016-03-31","val":845000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2016Q1I"},{"end":"2017-03-31","val":2776000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"PurchaseObligationDueInThirdYear":{"label":"Purchase Obligation, to be Paid, Year Three","description":"Amount of purchase arrangement to be paid in third fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2016-03-31","val":0,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2016Q1I"},{"end":"2017-03-31","val":0,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"RepaymentsOfDebt":{"label":"Repayments of Debt","description":"The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":1514000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2011-03-31","val":8447000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":8447000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-09-30","val":705000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-04-01","end":"2011-12-31","val":1059000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-04-01","end":"2012-03-31","val":1374000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":1374000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":1374000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":939000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":1174000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":1174000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-04-01","end":"2012-12-31","val":1201000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":1201000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-04-01","end":"2013-03-31","val":1667000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":1667000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":1667000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":243000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":243000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":489000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":489000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-04-01","end":"2013-12-31","val":516000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":516000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-04-01","end":"2014-03-31","val":1000000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":1000000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":1000000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":296000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":296000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":629000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":629000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-04-01","end":"2014-12-31","val":914000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":914000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":1144000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":1144000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":1144000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":449000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":449000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":937000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":937000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-04-01","end":"2015-12-31","val":46247000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":46247000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-04-01","end":"2016-03-31","val":47606000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":47606000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":7970000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":7970000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":8229000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":8229000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-04-01","end":"2016-12-31","val":8804000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-04-01","end":"2017-03-31","val":9051000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":278000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":1009000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"}]}},"RepaymentsOfDebtAndCapitalLeaseObligations":{"label":"Repayments of Debt and Lease Obligation","description":"Amount of cash outflow for short-term and long-term debt and lease obligation.","units":{"USD":[{"start":"2014-04-01","end":"2014-06-30","val":676000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":1336000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-04-01","end":"2014-12-31","val":1965000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-06-30","val":321000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":419000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-12-31","val":454000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"}]}},"RepaymentsOfLongTermCapitalLeaseObligations":{"label":"Repayments of Long-term Capital Lease Obligations","description":"The cash outflow for the obligation for a lease meeting the criteria for capitalization (with maturities exceeding one year or beyond the operating cycle of the entity, if longer).","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":3961000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-06-30","val":784000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-09-30","val":1530000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2010-04-01","end":"2010-12-31","val":2373000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-04-01","end":"2011-03-31","val":3120000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":3120000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":774000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":774000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":1671000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-04-01","end":"2011-09-30","val":1671000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-04-01","end":"2011-12-31","val":2483000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":2483000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-04-01","end":"2012-03-31","val":3222000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":3222000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":3222000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":745000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":745000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":1435000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":1435000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-04-01","end":"2012-12-31","val":2158000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":2158000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-04-01","end":"2013-03-31","val":2774000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":2774000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":2774000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":616000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":616000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":1247000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":1247000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-04-01","end":"2013-12-31","val":1903000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":1903000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-04-01","end":"2014-03-31","val":2570000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":2570000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":2570000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":676000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":1336000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-12-31","val":1965000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":2414000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":2414000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":2414000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":321000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":419000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-04-01","end":"2015-12-31","val":454000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-04-01","end":"2016-03-31","val":472000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":472000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"}]}},"RepaymentsOfLongTermDebt":{"label":"Repayments of Long-term Debt","description":"The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.","units":{"USD":[{"start":"2010-04-01","end":"2010-06-30","val":338000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-09-30","val":681000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2010-04-01","end":"2010-12-31","val":1040000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-06-30","val":340000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":340000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-09-30","val":705000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-04-01","end":"2011-12-31","val":1059000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2012-04-01","end":"2012-06-30","val":939000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2"}]}},"RepaymentsOfOtherShortTermDebt":{"label":"Repayments of Other Short-term Debt","description":"Amount of cash outflow for the payment of debt classified as other, maturing within one year or the operating cycle, if longer.","units":{"USD":[{"start":"2012-04-01","end":"2013-03-31","val":0,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":0,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":0,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-04-01","end":"2013-12-31","val":0,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-04-01","end":"2014-03-31","val":0,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":15000000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":15000000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":15000000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":15000000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-04-01","end":"2014-12-31","val":30000000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":30000000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":30000000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":30000000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":30000000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"}]}},"ResearchAndDevelopmentExpense":{"label":"Research and Development Expense","description":"The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":20112000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-06-30","val":7012000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-09-30","val":13609000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":6597000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2010-04-01","end":"2010-12-31","val":20293000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-10-01","end":"2010-12-31","val":6684000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2010Q4"},{"start":"2010-04-01","end":"2011-03-31","val":27527000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":28177000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":6933000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":6933000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":13437000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-04-01","end":"2011-09-30","val":13437000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":6504000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":6504000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2011-04-01","end":"2011-12-31","val":19805000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":19805000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-10-01","end":"2011-12-31","val":6368000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-10-01","end":"2011-12-31","val":6368000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2011Q4"},{"start":"2011-04-01","end":"2012-03-31","val":27930000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":28847000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":28847000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":6649000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":6930000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":13401000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":13965000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":6752000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":7035000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":19933000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":20749000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":6532000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-10-01","end":"2012-12-31","val":6784000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4"},{"start":"2012-04-01","end":"2013-03-31","val":28022000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":28022000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":28022000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":7687000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":7687000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":15140000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":15140000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":7453000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":7453000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":23034000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":23034000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":7894000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":7894000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":30884000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":30884000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":30884000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":7250000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":7250000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":14198000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":14198000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":6948000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-07-01","end":"2014-09-30","val":6948000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2014Q3"},{"start":"2014-04-01","end":"2014-12-31","val":20487000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":20487000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":6289000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":6289000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":26667000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":26667000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":26667000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":7683000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":7683000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":15487000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":15487000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":7804000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":7804000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2015Q3"},{"start":"2015-04-01","end":"2015-12-31","val":22767000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":22767000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":7280000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":7280000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":29986000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":29986000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":7910000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":7910000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":15758000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":15758000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":7848000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":7848000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-04-01","end":"2016-12-31","val":22461000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":6703000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4"},{"start":"2016-04-01","end":"2017-03-31","val":30538000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":7573000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":15804000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":8231000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"}]}},"RestrictedCashAndCashEquivalents":{"label":"Restricted Cash and Cash Equivalents","description":"Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.","units":{"USD":[{"end":"2014-04-01","val":337000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014Q1I"},{"end":"2015-03-31","val":266000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2015-03-31","val":266000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015Q1I"},{"end":"2015-04-01","val":266000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2015-12-31","val":722000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2015Q4I"},{"end":"2016-03-31","val":277000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":277000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2016-03-31","val":277000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2016-03-31","val":277000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q1I"},{"end":"2016-04-01","val":277000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2016-06-30","val":272000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2I"},{"end":"2016-09-30","val":274000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":1300000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":1300000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":1300000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":1300000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":1400000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":1500000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"RestrictedCashAndCashEquivalentsAtCarryingValue":{"label":"Restricted Cash and Cash Equivalents, Current","description":"Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.","units":{"USD":[{"end":"2011-03-31","val":593000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-03-31","val":593000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-03-31","val":593000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2011-03-31","val":593000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011Q1I"},{"end":"2011-06-30","val":600000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":582000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":519000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-03-31","val":509000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":509000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":509000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":509000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":509000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":557000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":564000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":323000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":314000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":314000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":314000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":314000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":314000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":318000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":331000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":337000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":337000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":337000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":337000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":337000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":337000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":948000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":693000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":297000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":266000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":266000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":266000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":266000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":266000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":370000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":1244000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":722000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":277000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":277000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":277000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":277000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":277000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":272000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":274000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":1309000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":1330000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":1330000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":1330000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":1422000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":1470000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"RestructuringCharges":{"label":"Restructuring Charges","description":"Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":1614000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2011-03-31","val":759000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2010-04-01","end":"2011-03-31","val":759000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":0,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2011"},{"start":"2011-04-01","end":"2012-03-31","val":0,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2012-04-01","end":"2013-03-31","val":0,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":0,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-06-30","val":0,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-06-30","val":0,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-07-01","end":"2013-09-30","val":0,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q3"},{"start":"2013-07-01","end":"2013-09-30","val":0,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-10-01","end":"2013-12-31","val":-73000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4"}]}},"RestructuringReserve":{"label":"Restructuring Reserve","description":"Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.","units":{"USD":[{"end":"2012-03-31","val":199000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q1I"},{"end":"2012-03-31","val":199000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":199000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-06-30","val":131000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q2I"},{"end":"2012-06-30","val":131000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-06-30","val":131000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-09-30","val":69000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q3I"},{"end":"2012-09-30","val":69000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-12-31","val":71000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":69000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q1I"},{"end":"2013-03-31","val":69000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":69000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-06-30","val":70000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q2I"},{"end":"2013-06-30","val":70000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-06-30","val":70000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-09-30","val":73000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q3I"},{"end":"2013-09-30","val":73000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-12-31","val":0,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"}]}},"RestructuringReservePeriodExpense":{"label":"Restructuring Reserve, Period Expense (Deprecated 2012-01-31)","description":"Reserve increase representing the amount charged against earnings in the period for a specified incurred and estimated type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.","units":{"USD":[{"start":"2012-04-01","end":"2012-06-30","val":0,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-06-30","val":0,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-06-30","val":0,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-07-01","end":"2012-09-30","val":0,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q3"},{"start":"2012-07-01","end":"2012-09-30","val":0,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-10-01","end":"2012-12-31","val":0,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4"}]}},"RestructuringReserveSettledWithCash":{"label":"Restructuring Reserve, Settled With Cash (Deprecated 2013-01-31)","description":"Amount of cash paid in the period to fully or partially settle a specified, previously accrued type of restructuring cost.","units":{"USD":[{"start":"2012-04-01","end":"2012-06-30","val":-64000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-06-30","val":-64000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-06-30","val":-64000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-07-01","end":"2012-09-30","val":-63000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q3"},{"start":"2012-07-01","end":"2012-09-30","val":-63000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-10-01","end":"2012-12-31","val":0,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4"},{"start":"2013-04-01","end":"2013-06-30","val":0,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2"}]}},"RestructuringReserveTranslationAdjustment":{"label":"Restructuring Reserve, Foreign Currency Translation Gain (Loss)","description":"Amount of foreign currency translation gain (loss) which decreases (increases) the restructuring reserve.","units":{"USD":[{"start":"2012-04-01","end":"2012-06-30","val":-4000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-06-30","val":-4000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-06-30","val":-4000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-07-01","end":"2012-09-30","val":1000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q3"},{"start":"2012-07-01","end":"2012-09-30","val":1000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-10-01","end":"2012-12-31","val":2000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4"},{"start":"2013-04-01","end":"2013-06-30","val":1000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-06-30","val":1000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-06-30","val":1000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-07-01","end":"2013-09-30","val":3000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q3"},{"start":"2013-07-01","end":"2013-09-30","val":3000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-10-01","end":"2013-12-31","val":0,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4"}]}},"RestructuringSettlementAndImpairmentProvisions":{"label":"Restructuring, Settlement and Impairment Provisions","description":"Amount of restructuring charges, remediation cost, and asset impairment loss.","units":{"USD":[{"start":"2010-04-01","end":"2010-06-30","val":47000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-09-30","val":51000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":4000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2010-04-01","end":"2010-12-31","val":566000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-10-01","end":"2010-12-31","val":515000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2010Q4"},{"start":"2010-04-01","end":"2011-03-31","val":759000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":0,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":0,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":0,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3"},{"start":"2011-04-01","end":"2011-12-31","val":0,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-10-01","end":"2011-12-31","val":0,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4"},{"start":"2011-04-01","end":"2012-03-31","val":0,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":0,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012"}]}},"RetainedEarningsAccumulatedDeficit":{"label":"Retained Earnings (Accumulated Deficit)","description":"The cumulative amount of the reporting entity's undistributed earnings or deficit.","units":{"USD":[{"end":"2011-03-31","val":79954000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-03-31","val":79954000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-03-31","val":79954000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2011-03-31","val":79954000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011Q1I"},{"end":"2011-06-30","val":89930000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":100877000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":106548000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-03-31","val":110194000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":110194000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":110194000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":110194000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":110194000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":116176000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":118479000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":118629000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":115718000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":115718000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":115718000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":115718000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":115718000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":116682000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":118962000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":118527000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":117715000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":117715000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":117715000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":117715000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":117715000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":120374000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":124953000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":130446000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":137134000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":137134000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":137134000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":137134000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":137134000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":139110000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":141018000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":142044000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":146979000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":146979000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":146979000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":146979000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":146979000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":148727000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":152617000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":157717000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":167009000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":167009000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":167009000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":171321000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":174784000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"SalesRevenueNet":{"label":"Revenue, Net (Deprecated 2018-01-31)","description":"Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":243224000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-06-30","val":84875000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-09-30","val":174785000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":89910000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2010-04-01","end":"2010-12-31","val":266512000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-10-01","end":"2010-12-31","val":91727000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2010Q4"},{"start":"2010-04-01","end":"2011-03-31","val":363273000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":363273000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":101778000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":101778000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":200782000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-04-01","end":"2011-09-30","val":200782000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":99004000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":99004000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2011-04-01","end":"2011-12-31","val":280823000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":280823000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-10-01","end":"2011-12-31","val":80041000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-10-01","end":"2011-12-31","val":80041000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2011Q4"},{"start":"2011-04-01","end":"2012-03-31","val":368004000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":368004000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":368004000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":80857000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":80857000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":149318000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":149318000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":68461000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":68461000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":213130000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":213130000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":63812000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-10-01","end":"2012-12-31","val":63812000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4"},{"start":"2012-04-01","end":"2013-03-31","val":280014000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":280014000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":280014000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":71186000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":71186000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":157087000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":157087000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":85901000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":85901000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":246435000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":246435000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":89348000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":89348000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":336330000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":336330000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":336330000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":88080000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":88080000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2014-04-01","end":"2014-06-30","val":88080000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":174515000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":174515000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":86435000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-07-01","end":"2014-09-30","val":86435000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":86435000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014Q3"},{"start":"2014-04-01","end":"2014-12-31","val":255841000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":255841000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":81326000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":81326000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":81326000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":338767000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":338767000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":338767000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":82926000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1"},{"start":"2015-04-01","end":"2015-06-30","val":82047000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":82047000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2015-06-30","val":82047000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2015-04-01","end":"2015-06-30","val":82047000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":162304000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":162304000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":80257000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":80257000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-07-01","end":"2015-09-30","val":80257000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":80257000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015Q3"},{"start":"2015-04-01","end":"2015-12-31","val":237437000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":237437000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":75133000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":75133000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-10-01","end":"2015-12-31","val":75133000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":75133000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":317209000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":317209000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":79772000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2016-01-01","end":"2016-03-31","val":79772000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1"},{"start":"2016-04-01","end":"2016-06-30","val":80638000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":80638000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"start":"2016-04-01","end":"2016-06-30","val":80638000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":159267000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":159267000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":78629000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":78629000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"start":"2016-07-01","end":"2016-09-30","val":78629000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-04-01","end":"2016-12-31","val":238751000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":79484000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":79484000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q4"},{"start":"2016-04-01","end":"2017-03-31","val":322123000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":83372000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1"},{"start":"2017-04-01","end":"2017-06-30","val":83542000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":171226000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":87684000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"}]}},"SellingGeneralAndAdministrativeExpense":{"label":"Selling, General and Administrative Expense","description":"The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":36163000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-06-30","val":10422000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-09-30","val":20876000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":10454000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2010-04-01","end":"2010-12-31","val":31471000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-10-01","end":"2010-12-31","val":10595000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2010Q4"},{"start":"2010-04-01","end":"2011-03-31","val":42881000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":41880000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":11129000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":11129000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":21315000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-04-01","end":"2011-09-30","val":21315000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":10186000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":10186000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2011-04-01","end":"2011-12-31","val":32142000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":32142000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-10-01","end":"2011-12-31","val":10827000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-10-01","end":"2011-12-31","val":10827000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2011Q4"},{"start":"2011-04-01","end":"2012-03-31","val":43356000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":42063000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":42063000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":11187000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":10790000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":21092000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":20298000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":9905000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":9508000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":30582000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":29448000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":9490000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-10-01","end":"2012-12-31","val":9150000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4"},{"start":"2012-04-01","end":"2013-03-31","val":39287000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":39287000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":39287000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":10043000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":10043000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":20626000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":20626000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":10583000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":10583000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":30654000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":30654000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":10028000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":10028000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":41983000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":41983000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":41983000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":10764000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":10764000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":21477000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":21477000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":10713000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-07-01","end":"2014-09-30","val":10713000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2014Q3"},{"start":"2014-04-01","end":"2014-12-31","val":31668000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":31668000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":10191000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":10191000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":41810000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":41810000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":41810000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":10636000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":10636000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":20437000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":20437000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":9801000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":9801000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2015Q3"},{"start":"2015-04-01","end":"2015-12-31","val":29595000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":29595000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":9158000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":9158000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":38384000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":38384000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":10038000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":10038000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":20178000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":20178000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":10140000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":10140000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-04-01","end":"2016-12-31","val":30454000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":10276000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4"},{"start":"2016-04-01","end":"2017-03-31","val":41733000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":10006000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":22897000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":12891000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"}]}},"SeveranceCosts":{"label":"Severance Costs (Deprecated 2013-01-31)","description":"The charge against earnings in the period for known and estimated costs of termination benefits provided to current employees that are involuntarily terminated under a benefit arrangement associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding costs or losses pertaining to an entity newly acquired in a business combination or a discontinued operation as defined by generally accepted accounting principles and costs associated with one-time termination benefits.","units":{"USD":[{"start":"2010-04-01","end":"2011-03-31","val":100000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"}]}},"ShareBasedCompensation":{"label":"Share-based Payment Arrangement, Noncash Expense","description":"Amount of noncash expense for share-based payment arrangement.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":3160000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-06-30","val":792000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-09-30","val":1633000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2010-04-01","end":"2010-12-31","val":2547000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-04-01","end":"2011-03-31","val":3398000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":3398000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":784000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":784000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":1582000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-04-01","end":"2011-09-30","val":1582000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-04-01","end":"2011-12-31","val":2713000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":2713000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-04-01","end":"2012-03-31","val":3779000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":3779000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":3779000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":1095000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":1095000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":2131000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":2131000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-04-01","end":"2012-12-31","val":2857000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":2857000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-04-01","end":"2013-03-31","val":3451000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":3451000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":3451000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":671000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":671000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":1341000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":1341000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-04-01","end":"2013-12-31","val":2033000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":2033000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-04-01","end":"2014-03-31","val":2785000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":2785000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":2785000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":681000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":681000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":1378000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":1378000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-04-01","end":"2014-12-31","val":2127000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":2127000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":2867000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":2867000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":2867000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":739000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":739000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":1691000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":1691000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-04-01","end":"2015-12-31","val":2529000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":2529000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-04-01","end":"2016-03-31","val":3343000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":3343000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":855000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":855000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":1729000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":1729000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-04-01","end":"2016-12-31","val":2551000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-04-01","end":"2017-03-31","val":3438000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":907000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":2005000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period","description":"The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).","units":{"shares":[{"start":"2010-04-01","end":"2011-03-31","val":0,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":0,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":0,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number","description":"The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.","units":{"shares":[{"end":"2010-03-31","val":32200,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010Q1I"},{"end":"2011-03-31","val":0,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2011Q1I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value","description":"Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.","units":{"USD/shares":[{"end":"2010-03-31","val":9.58,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010Q1I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period","description":"The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.","units":{"shares":[{"start":"2010-04-01","end":"2011-03-31","val":-32200,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value","description":"The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.","units":{"USD/shares":[{"start":"2010-04-01","end":"2011-03-31","val":9.58,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate","description":"The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.","units":{"pure":[{"end":"2013-10-01","val":0,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013Q3I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized","description":"Number of shares authorized for issuance under share-based payment arrangement.","units":{"shares":[{"end":"2012-03-31","val":600000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2012-03-31","val":600000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2012Q1I"},{"end":"2013-08-30","val":2000000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013Q3I"},{"end":"2014-03-31","val":2000000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":2000000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2014-03-31","val":2000000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014Q1I"},{"end":"2017-03-31","val":2000000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant","description":"The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.","units":{"shares":[{"end":"2011-03-31","val":1102786,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011Q1I"},{"end":"2012-03-31","val":748036,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2012-03-31","val":748036,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012Q1I"},{"end":"2013-03-31","val":299947,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":299947,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2013-03-31","val":299947,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2013-03-31","val":451713,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013Q1I"},{"end":"2014-03-31","val":1778484,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":1778484,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2014-03-31","val":1930250,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2014-03-31","val":1930250,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014Q1I"},{"end":"2015-03-31","val":1595234,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":1747000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2015-03-31","val":1747000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015Q1I"},{"end":"2016-03-31","val":637500,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":637500,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2017-03-31","val":1921500,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number","description":"The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.","units":{"shares":[{"end":"2012-03-31","val":3833879,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":3833879,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":3833879,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q1I"},{"end":"2012-06-30","val":3992010,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":4076385,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":4080635,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":4065473,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":4065473,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":4065473,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q1I"},{"end":"2013-06-30","val":4108073,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":4114423,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":4061923,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":3865885,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":3865885,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":3865885,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":3865885,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q1I"},{"end":"2014-06-30","val":3970885,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":3863385,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":3828885,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":3942261,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":3942261,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":3942261,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q1I"},{"end":"2015-06-30","val":3387597,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":3504063,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":3499063,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":3619563,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":3619563,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":3619563,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":3619563,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":3619563,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":3684916,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":3950650,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":3924050,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":3300295,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":3300295,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":3300295,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":2607500,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":2717250,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price","description":"The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.","units":{"USD/shares":[{"end":"2012-03-31","val":9.42,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":9.42,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":9.42,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q1I"},{"end":"2012-06-30","val":9.49,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":9.74,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":9.71,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":9.74,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":9.74,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":9.74,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q1I"},{"end":"2013-06-30","val":9.83,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":9.93,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":10,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":10,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":10,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":10,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":10,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q1I"},{"end":"2014-06-30","val":10.03,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":10.12,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":10.16,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":10.2,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":10.2,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":10.2,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q1I"},{"end":"2015-06-30","val":9.73,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":9.84,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":9.88,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":9.93,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":9.93,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":9.93,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":9.93,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":9.93,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":10.03,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":10.12,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":10.11,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":10.34,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":10.34,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":10.34,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":10.75,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":10.8,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value","description":"Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.","units":{"USD":[{"start":"2010-04-01","end":"2011-03-31","val":1926000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":2862000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":2862000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":70000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":155000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-12-31","val":305000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2013-03-31","val":443000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":443000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":443000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":338000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":836000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-12-31","val":1168000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2014-03-31","val":1695000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":1695000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":1695000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":77000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":1043000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-12-31","val":1231000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":1310000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":1310000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":1310000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":1040000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":1291000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-12-31","val":1484000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2016-03-31","val":1551000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":1551000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":130000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":375000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-12-31","val":384000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-04-01","end":"2017-03-31","val":3112000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":5187000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":8074000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price (Deprecated 2012-01-31)","description":"The weighted average price at which option holders acquired shares when converting their stock options into shares under the plan during the reporting period.","units":{"USD":[{"end":"2012-06-30","val":6.49,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":6.77,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":6.94,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period","description":"Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.","units":{"shares":[{"start":"2010-04-01","end":"2011-03-31","val":-217853,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":-51000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":-51000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":-12900,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":-98975,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-12-31","val":-378975,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2013-03-31","val":-378975,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":-378975,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":-378975,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":-2500,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":-2500,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-12-31","val":-6500,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2014-03-31","val":-34500,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":-34500,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":34500,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":-5000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":-52500,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-12-31","val":-74500,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":-74500,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":74500,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":74500,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":432788,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":434788,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-12-31","val":434788,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2016-03-31","val":434788,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":434788,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":5000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":5000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-12-31","val":27500,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-04-01","end":"2017-03-31","val":27500,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":19000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":20250,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price (Deprecated 2012-01-31)","description":"The weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that lapsed during the reporting period.","units":{"USD":[{"end":"2012-06-30","val":12.85,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":5.94,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":7.31,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period","description":"The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.","units":{"shares":[{"start":"2010-04-01","end":"2011-03-31","val":-30750,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":-164500,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":-164500,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-09-30","val":-39925,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-12-31","val":-39925,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2013-03-31","val":-67425,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":-67425,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":-67425,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":-10000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":-19000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-12-31","val":-34000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2014-03-31","val":-34000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":-34000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":34000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":-56250,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":-75250,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-12-31","val":-75250,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":-94250,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":94250,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":94250,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":2500,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":2500,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-12-31","val":2500,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2016-03-31","val":14500,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":14500,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-09-30","val":7500,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-12-31","val":7500,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-04-01","end":"2017-03-31","val":7500,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":89750,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":89750,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price (Deprecated 2012-01-31)","description":"The weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated during the reporting period due to noncompliance with plan terms during the reporting period.","units":{"USD":[{"end":"2012-09-30","val":7.29,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":7.29,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures","description":"Net number of share options (or share units) granted during the period.","units":{"shares":[{"start":"2010-04-01","end":"2011-03-31","val":700000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":966000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":966000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":90000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":205000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-12-31","val":205000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2013-03-31","val":455000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":455000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":455000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":0,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":239000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-12-31","val":239000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2014-03-31","val":515000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":515000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":0,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":249000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-12-31","val":249000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":249000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross","description":"Gross number of share options (or share units) granted during the period.","units":{"shares":[{"start":"2013-04-01","end":"2014-03-31","val":515000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":0,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-10-01","end":"2014-12-31","val":0,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":249000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":249000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":293000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":1124000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-12-31","val":1124000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":0,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":1124000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":1124000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":222000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":387000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-12-31","val":704000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-04-01","end":"2017-03-31","val":746000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":549000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":549000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (Deprecated 2012-01-31)","description":"The weighted average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on stock options awarded under the plan during the reporting period.","units":{"USD":[{"end":"2012-06-30","val":10.36,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":9.85,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":9.85,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value","description":"Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.","units":{"USD":[{"end":"2010-03-31","val":4570000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010Q1I"},{"end":"2011-03-31","val":23505000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2011-03-31","val":23505000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011Q1I"},{"end":"2012-03-31","val":19532000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2012-03-31","val":19532000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2012-03-31","val":19532000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012Q1I"},{"end":"2013-03-31","val":4273000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":4273000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2013-03-31","val":4273000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2013-03-31","val":4273000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013Q1I"},{"end":"2014-03-31","val":8658000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":8658000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2014-03-31","val":8658000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2014-03-31","val":8658000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014Q1I"},{"end":"2015-03-31","val":10831000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":10831000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2015-03-31","val":10831000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015Q1I"},{"end":"2016-03-31","val":6456000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":6456000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2017-03-31","val":19570000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number","description":"Number of options outstanding, including both vested and non-vested options.","units":{"shares":[{"end":"2010-03-31","val":5188273,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010Q1I"},{"end":"2011-03-31","val":5199768,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2011-03-31","val":5199768,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011Q1I"},{"end":"2012-03-31","val":5472004,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":5472004,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":5472004,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":5472004,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2012-03-31","val":5472004,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2012-03-31","val":5472004,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012Q1I"},{"end":"2012-06-30","val":5537885,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":5498635,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":5155135,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":5327473,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":5327473,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":5327473,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":5327473,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":5327473,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2013-03-31","val":5327473,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2013-03-31","val":5327473,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013Q1I"},{"end":"2013-06-30","val":5205823,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":5318923,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":5202923,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":5201635,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":5201635,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":5201635,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":5201635,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":5201635,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2014-03-31","val":5201635,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2014-03-31","val":5201635,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014Q1I"},{"end":"2014-06-30","val":5106635,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":5063135,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":4987135,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":4942511,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":4942511,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":4942511,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":4942511,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":4942511,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2015-03-31","val":4942511,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":4588347,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":5308397,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":5259397,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":5234397,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":5234397,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":5234397,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":5234397,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":5234397,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":5423500,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":5502900,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":5793300,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":5085545,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":5097545,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":5097545,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":4725750,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":4476750,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price","description":"Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.","units":{"USD/shares":[{"end":"2010-03-31","val":9.32,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010Q1I"},{"end":"2011-03-31","val":9.03,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2011-03-31","val":9.03,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011Q1I"},{"end":"2012-03-31","val":9.75,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":9.75,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":9.75,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":9.75,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2012-03-31","val":9.75,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2012-03-31","val":9.75,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012Q1I"},{"end":"2012-06-30","val":9.76,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":9.87,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":10.01,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":10.04,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":10.04,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":10.04,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":10.04,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":10.04,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2013-03-31","val":10.04,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2013-03-31","val":10.04,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013Q1I"},{"end":"2013-06-30","val":10.08,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":10.1,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":10.13,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":10.22,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":10.22,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":10.22,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":10.22,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":10.22,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2014-03-31","val":10.22,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2014-03-31","val":10.22,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014Q1I"},{"end":"2014-06-30","val":10.21,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":10.36,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":10.37,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":10.37,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":10.37,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":10.37,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":10.37,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":10.37,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2015-03-31","val":10.37,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":10.2,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":10.38,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":10.39,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":10.4,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":10.4,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":10.4,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":10.4,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":10.4,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":10.44,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":10.5,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":10.5,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":10.7,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":10.71,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":10.71,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":11.54,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":11.59,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice":{"label":"Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price","description":"Weighted average price at which option holders acquired shares when converting their stock options into shares.","units":{"USD/shares":[{"start":"2010-04-01","end":"2011-03-31","val":7.33,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":7.35,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":7.35,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":7.03,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":7.03,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":7.03,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":8.04,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":7.69,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-12-31","val":7.87,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2014-03-31","val":8.72,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":8.72,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":8.72,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":9.67,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":8.63,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-12-31","val":8.59,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":8.62,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":8.62,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":8.62,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":9.3,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":9.15,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-12-31","val":9.11,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2016-03-31","val":9.02,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":9.02,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":6.53,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":7.95,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-12-31","val":8,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-04-01","end":"2017-03-31","val":9.1,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":9.4,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":9.72,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"}]}},"ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice":{"label":"Share-based Compensation Arrangements by Share-based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price","description":"Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired.","units":{"USD/shares":[{"start":"2010-04-01","end":"2011-03-31","val":19.55,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":12.61,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":12.61,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":7.31,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":7.31,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":7.31,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":12.13,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":12.13,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-12-31","val":9.96,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2014-03-31","val":12.62,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":12.62,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":12.62,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":8.36,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":10.74,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-12-31","val":11.17,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":11.17,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":11.17,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":11.17,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":14.7,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":14.68,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-12-31","val":14.68,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2016-03-31","val":14.68,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":14.68,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":9.73,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":9.73,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-12-31","val":11.81,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-04-01","end":"2017-03-31","val":11.81,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":9.35,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":9.46,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"}]}},"ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice":{"label":"Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price","description":"Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.","units":{"USD/shares":[{"start":"2010-04-01","end":"2011-03-31","val":7.57,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":8.3,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":8.3,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":8.34,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":8.34,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":8.34,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":9.02,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":10.77,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-12-31","val":11.42,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2014-03-31","val":11.42,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":11.42,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":11.42,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":11.13,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":11.37,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-12-31","val":11.37,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":11.46,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":11.46,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":11.46,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":12.13,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":12.13,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-12-31","val":12.13,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2016-03-31","val":11.31,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":11.31,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-09-30","val":13.37,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-12-31","val":13.37,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-04-01","end":"2017-03-31","val":13.37,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":11.42,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":11.42,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"}]}},"ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice":{"label":"Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price","description":"Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.","units":{"USD/shares":[{"start":"2010-04-01","end":"2011-03-31","val":9.05,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":12.37,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":12.37,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":9.93,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":9.93,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":9.93,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":0,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":9.27,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-12-31","val":9.27,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2014-03-31","val":10.63,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":10.63,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":10.63,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":0,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":11.83,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-12-31","val":11.83,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":11.83,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":11.83,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":11.83,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":13.37,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":11.72,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-12-31","val":11.72,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2016-03-31","val":11.72,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":11.72,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":10.97,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":11.23,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-12-31","val":10.95,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-04-01","end":"2017-03-31","val":11.06,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":16.05,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":16.05,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"}]}},"ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit":{"label":"Share-based Payment Arrangement, Option, Exercise Price Range, Lower Range Limit","description":"The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.","units":{"USD/shares":[{"start":"2015-04-01","end":"2016-03-31","val":5.01,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":5.01,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":5.01,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit":{"label":"Share-based Payment Arrangement, Option, Exercise Price Range, Upper Range Limit","description":"The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.","units":{"USD/shares":[{"start":"2015-04-01","end":"2016-03-31","val":13.37,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":13.37,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":14.5,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value","description":"Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.","units":{"USD":[{"end":"2016-03-31","val":6000000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":6000000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2017-03-31","val":13900000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value","description":"Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.","units":{"USD":[{"start":"2015-04-01","end":"2016-03-31","val":2800000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":2800000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":2900000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"SharePrice":{"label":"Share Price","description":"Price of a single share of a number of saleable stocks of a company.","units":{"USD/shares":[{"end":"2015-03-31","val":12.32,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"},{"end":"2016-03-31","val":11.22,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2016Q1I"},{"end":"2017-03-31","val":14.55,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"StockholdersEquity":{"label":"Stockholders' Equity Attributable to Parent","description":"Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.","units":{"USD":[{"end":"2009-03-31","val":178492000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009Q1I"},{"end":"2010-03-31","val":183135000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2010-03-31","val":183135000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010Q1I"},{"end":"2011-03-31","val":229229000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-03-31","val":229229000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-03-31","val":229229000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2011-03-31","val":229229000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2011-03-31","val":229229000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2011-03-31","val":229229000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011Q1I"},{"end":"2011-06-30","val":241382000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":243091000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":246376000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-03-31","val":254107000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":254107000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":254107000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":254107000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":254107000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2012-03-31","val":254107000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2012-03-31","val":254107000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012Q1I"},{"end":"2012-06-30","val":256741000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":260996000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":259534000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":253608000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":253608000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":253608000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":253608000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":253608000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2013-03-31","val":253608000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2013-03-31","val":253608000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013Q1I"},{"end":"2013-06-30","val":257690000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":266047000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":269501000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":270632000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":270632000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":270632000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":270632000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":270632000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2014-03-31","val":270632000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2014-03-31","val":270632000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014Q1I"},{"end":"2014-06-30","val":274169000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":271709000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":274407000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":267301000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":267301000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":267301000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":267301000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":267301000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2015-03-31","val":267301000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":274953000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":273397000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":273022000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":279295000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":279295000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":279295000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":279295000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":279295000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":279956000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":285789000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":286195000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":297855000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":297855000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":297855000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":315216000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":324332000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"StockIssuedDuringPeriodSharesStockOptionsExercised":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period","description":"Number of share options (or share units) exercised during the current period.","units":{"shares":[{"start":"2010-04-01","end":"2011-03-31","val":-439902,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":-478264,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":-478264,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":-11219,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":-39469,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-12-31","val":-102969,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2013-03-31","val":-153131,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":-153131,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":-153131,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":-109150,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":-226050,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-12-31","val":-323050,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2014-03-31","val":-572338,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":-572338,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":572338,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":-33750,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":-259750,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-12-31","val":-313750,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2015-03-31","val":-339374,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":339374,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":339374,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":211876,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":320826,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-12-31","val":369826,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2016-03-31","val":382826,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":382826,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":27897,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":105997,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-12-31","val":110097,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-04-01","end":"2017-03-31","val":859852,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":812045,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":1059795,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"}]}},"StockIssuedDuringPeriodValueTreasuryStockReissued":{"label":"Stock Issued During Period, Value, Treasury Stock Reissued","description":"Value of treasury shares or units reissued. Excludes reissuance of shares or units in treasury for award under share-based payment arrangement.","units":{"USD":[{"start":"2011-04-01","end":"2012-03-31","val":339000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011"},{"start":"2015-04-01","end":"2016-03-31","val":3340000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015"}]}},"TaxAdjustmentsSettlementsAndUnusualProvisions":{"label":"Tax Adjustments, Settlements, and Unusual Provisions","description":"Amount of increase (decrease) to previously recorded tax expense. Includes, but is not limited to, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, and IRS tax settlement.","units":{"USD":[{"start":"2015-04-01","end":"2015-12-31","val":1400000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":1400000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":1400000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":1400000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":1400000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":1400000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"}]}},"TreasuryStockReissuedAtLowerThanRepurchasePrice":{"label":"Treasury Stock Reissued at Lower than Repurchase Price","description":"In cases when treasury stock is reissued at a price lower than the cost to repurchase, the excess difference between the selling price and cost to repurchase is charged against retained earnings (assuming that all APIC arising from treasury stock transactions has first been exhausted).","units":{"USD":[{"start":"2010-04-01","end":"2011-03-31","val":0,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":339000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":339000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":1079000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":1079000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":1079000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":3509000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":3509000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":3509000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":1891000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":1891000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":1891000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":3340000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":4651000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"TreasuryStockShares":{"label":"Treasury Stock, Shares","description":"Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.","units":{"shares":[{"end":"2011-03-31","val":5899587,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-03-31","val":5899587,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2011-03-31","val":5899587,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011Q1I"},{"end":"2011-09-30","val":6478366,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":6528366,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-03-31","val":6482159,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":6482159,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":6482159,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":6482159,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-09-30","val":6663918,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":7086021,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":7035859,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":7035859,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":7035859,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":7035859,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":7035859,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":6926709,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":6854809,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":6762809,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":6663090,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":6663090,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":6663090,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":6663090,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":6663090,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":6629340,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":6521726,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":6467726,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":6442102,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":6442102,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":6442102,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":6442102,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":6442102,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":6230226,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":6713397,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":6671943,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":6838634,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":6838634,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":6838634,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":6838634,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":6838634,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":6810737,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":6732637,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":6728537,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":6414308,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":6414308,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":6414308,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":5788608,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":5619648,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"TreasuryStockValue":{"label":"Treasury Stock, Value","description":"The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury.","units":{"USD":[{"end":"2011-03-31","val":49667000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"end":"2011-03-31","val":49667000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"end":"2011-03-31","val":49667000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"end":"2011-03-31","val":49667000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2011Q1I"},{"end":"2011-06-30","val":51217000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":56704000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":57243000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2011Q4I"},{"end":"2012-03-31","val":56838000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"end":"2012-03-31","val":56838000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"end":"2012-03-31","val":56838000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"end":"2012-03-31","val":56838000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"end":"2012-03-31","val":56838000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012Q1I"},{"end":"2012-06-30","val":56739000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":58608000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":62436000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2012Q4I"},{"end":"2013-03-31","val":61994000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":61994000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"end":"2013-03-31","val":61994000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"end":"2013-03-31","val":61994000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"end":"2013-03-31","val":61994000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013Q1I"},{"end":"2013-06-30","val":61033000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":60435000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":59640000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2013Q4I"},{"end":"2014-03-31","val":58782000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":58782000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"end":"2014-03-31","val":58782000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"end":"2014-03-31","val":58782000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"end":"2014-03-31","val":58782000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014Q1I"},{"end":"2014-06-30","val":58484000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":57535000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2014Q3I"},{"end":"2014-12-31","val":57059000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2014Q4I"},{"end":"2015-03-31","val":56833000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":56833000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"end":"2015-03-31","val":56833000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"end":"2015-03-31","val":56833000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"end":"2015-03-31","val":56833000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":54968000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2015Q2I"},{"end":"2015-09-30","val":60424000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2015Q3I"},{"end":"2015-12-31","val":60051000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2015Q4I"},{"end":"2016-03-31","val":61845000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":61845000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"end":"2016-03-31","val":61845000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"end":"2016-03-31","val":61845000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"end":"2016-03-31","val":61845000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":61592000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2016Q2I"},{"end":"2016-09-30","val":60886000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2016Q3I"},{"end":"2016-12-31","val":60849000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":58347000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"end":"2017-03-31","val":58347000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04"},{"end":"2017-03-31","val":58347000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q1I"},{"end":"2017-06-30","val":52653000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":51116000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"}]}},"TreasuryStockValueAcquiredCostMethod":{"label":"Treasury Stock, Value, Acquired, Cost Method","description":"Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.","units":{"USD":[{"start":"2009-04-01","end":"2010-03-31","val":288000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2011-03-31","val":4005000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":4005000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":7576000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":7576000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":7576000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":6505000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":6505000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":6505000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":602000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":602000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":602000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2015-04-01","end":"2016-03-31","val":8352000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":8352000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":1213000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"UndistributedEarningsOfForeignSubsidiaries":{"label":"Undistributed Earnings of Foreign Subsidiaries","description":"Amount of undistributed earnings of foreign subsidiaries intended to be permanently reinvested outside the country of domicile.","units":{"USD":[{"end":"2015-03-31","val":110700000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"},{"end":"2016-03-31","val":124900000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2016Q1I"},{"end":"2017-03-31","val":150500000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"UnrecognizedTaxBenefits":{"label":"Unrecognized Tax Benefits","description":"Amount of unrecognized tax benefits.","units":{"USD":[{"end":"2010-03-31","val":6233000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010Q1I"},{"end":"2011-03-31","val":8785000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2011-03-31","val":8785000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011Q1I"},{"end":"2012-03-31","val":6318000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2012-03-31","val":6318000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2012-03-31","val":6318000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012Q1I"},{"end":"2013-03-31","val":6736000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"end":"2013-03-31","val":6736000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2013-03-31","val":6736000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2013-03-31","val":6736000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013Q1I"},{"end":"2014-03-31","val":6978000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"end":"2014-03-31","val":6978000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2014-03-31","val":6978000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2014-03-31","val":6978000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014Q1I"},{"end":"2015-03-31","val":8156000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"end":"2015-03-31","val":6952000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2015-03-31","val":6952000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015Q1I"},{"end":"2016-03-31","val":6946000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":6946000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2017-03-31","val":6443000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions":{"label":"Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions","description":"Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.","units":{"USD":[{"start":"2016-04-01","end":"2017-03-31","val":63000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued":{"label":"Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued","description":"Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.","units":{"USD":[{"end":"2013-03-31","val":828000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2013Q1I"},{"end":"2014-03-31","val":1200000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2014Q1I"},{"end":"2015-03-31","val":1000000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2015Q1I"},{"end":"2016-03-31","val":1500000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2016Q1I"},{"end":"2017-03-31","val":952000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions":{"label":"Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions","description":"Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.","units":{"USD":[{"start":"2010-04-01","end":"2011-03-31","val":3682000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":803000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":803000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":964000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":964000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":964000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":684000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":684000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":684000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":4035000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":2831000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":2831000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":637000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":637000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":1021000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions":{"label":"Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions","description":"Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.","units":{"USD":[{"start":"2010-04-01","end":"2011-03-31","val":362000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":285000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":285000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":281000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":281000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":281000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":499000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":499000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":499000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":213000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":213000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":213000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":129000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":129000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"}]}},"UnrecognizedTaxBenefitsPeriodIncreaseDecrease":{"label":"Unrecognized Tax Benefits, Period Increase (Decrease)","description":"Amount of increase (decrease) in unrecognized tax benefits attributable to uncertain tax positions taken in tax returns.","units":{"USD":[{"start":"2012-04-01","end":"2013-03-31","val":6700000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":242000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":1200000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":-6000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":-503000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations":{"label":"Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations","description":"Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.","units":{"USD":[{"start":"2010-04-01","end":"2011-03-31","val":-1492000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":-3555000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":-3555000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":-827000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":-827000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":-827000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":-941000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":-941000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":941000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":-3070000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":3070000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":3070000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":772000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":772000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":1461000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate":{"label":"Unrecognized Tax Benefits that Would Impact Effective Tax Rate","description":"The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.","units":{"USD":[{"end":"2015-03-31","val":4100000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1I"},{"end":"2016-03-31","val":4100000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"end":"2016-03-31","val":4100000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1I"},{"end":"2017-03-31","val":3000000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1I"}]}},"ValuationAllowanceDeferredTaxAssetChangeInAmount":{"label":"Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount","description":"Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.","units":{"USD":[{"start":"2012-04-01","end":"2013-03-31","val":864000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":87000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":32000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":32000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":-436000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":-436000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":1100000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"ValuationAllowancesAndReservesAdjustments":{"label":"SEC Schedule, 12-09, Valuation Allowances and Reserves, Increase (Decrease) Adjustment","description":"Amount of increase (decrease) in valuation and qualifying accounts and reserves from adjustment.","units":{"USD":[{"start":"2012-04-01","end":"2013-03-31","val":-30000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":49000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":49000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":-176000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":-176000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":-176000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":15000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":15000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":-41000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"ValuationAllowancesAndReservesChargedToCostAndExpense":{"label":"SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense","description":"Amount of increase in valuation and qualifying accounts and reserves from charge to cost and expense.","units":{"USD":[{"start":"2010-04-01","end":"2011-03-31","val":8534000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":8524000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":8524000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":10064000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":10064000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":10064000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":8563000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":8563000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":8563000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":8935000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":8935000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":8935000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":6795000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":6795000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":10608000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"ValuationAllowancesAndReservesDeductions":{"label":"SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction","description":"Amount of decrease in valuation and qualifying accounts and reserves.","units":{"USD":[{"start":"2010-04-01","end":"2011-03-31","val":-8562000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2012-03-31","val":-9492000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":-9492000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2013-03-31","val":-9851000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":-9851000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":-9851000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2014-03-31","val":-8255000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":-8255000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":8255000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2015-03-31","val":-9004000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":9004000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":9004000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2016-03-31","val":6799000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":6799000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2017-03-31","val":8657000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"}]}},"WeightedAverageNumberDilutedSharesOutstandingAdjustment":{"label":"Weighted Average Number Diluted Shares Outstanding Adjustment","description":"The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.","units":{"shares":[{"start":"2010-04-01","end":"2011-03-31","val":773000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":1298000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":1224000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":1162000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2011-04-01","end":"2011-12-31","val":1170000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-10-01","end":"2011-12-31","val":1035000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2011Q4"},{"start":"2011-04-01","end":"2012-03-31","val":1152000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":1152000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":1027000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":1027000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":861000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":861000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":665000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":665000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":695000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":695000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":482000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-10-01","end":"2012-12-31","val":482000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4"},{"start":"2012-04-01","end":"2013-03-31","val":670000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":670000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":670000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":687000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":687000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":700000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":700000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":722000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":722000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":750000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":750000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":840000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":840000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":770000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":770000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":770000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":696000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":696000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":703000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":703000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":736000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-07-01","end":"2014-09-30","val":736000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04","frame":"CY2014Q3"},{"start":"2014-04-01","end":"2014-12-31","val":685000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":685000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":646000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":646000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":708000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":708000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":708000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-04-01","end":"2015-06-30","val":987000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":987000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":858000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":858000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":729000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":729000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03","frame":"CY2015Q3"},{"start":"2015-04-01","end":"2015-12-31","val":857000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":857000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":856000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":856000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":802000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":802000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-04-01","end":"2016-06-30","val":600000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":600000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":628000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":628000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":655000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":655000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-04-01","end":"2016-12-31","val":635000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":651000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07","frame":"CY2016Q4"},{"start":"2016-04-01","end":"2017-03-31","val":704000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-04-01","end":"2017-06-30","val":958000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":1207000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":1457000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"}]}},"WeightedAverageNumberOfDilutedSharesOutstanding":{"label":"Weighted Average Number of Shares Outstanding, Diluted","description":"The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.","units":{"shares":[{"start":"2009-04-01","end":"2010-03-31","val":31005000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-06-30","val":31701000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-09-30","val":31755000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":31623000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2010-04-01","end":"2010-12-31","val":31877000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-10-01","end":"2010-12-31","val":32071000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2010Q4"},{"start":"2010-04-01","end":"2011-03-31","val":32008000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":32008000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":32806000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":32806000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":32669000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-04-01","end":"2011-09-30","val":32669000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":32545000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":32545000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2011-04-01","end":"2011-12-31","val":32505000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":32505000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-10-01","end":"2011-12-31","val":32238000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-10-01","end":"2011-12-31","val":32238000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2011Q4"},{"start":"2011-04-01","end":"2012-03-31","val":32496000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":32496000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":32496000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":32378000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":32378000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":32192000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":32192000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":31975000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":31975000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":31917000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":31917000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":31487000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-10-01","end":"2012-12-31","val":31487000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4"},{"start":"2012-04-01","end":"2013-03-31","val":31695000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":31695000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":31695000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":31635000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":31635000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":31737000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":31737000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":31849000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":31849000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":31838000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":31838000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":32032000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":32032000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":31916000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":31916000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":31916000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":32075000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":32075000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2014-04-01","end":"2014-06-30","val":32075000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":32142000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":32142000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":32235000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-07-01","end":"2014-09-30","val":32235000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":32235000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014Q3"},{"start":"2014-04-01","end":"2014-12-31","val":32173000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":32173000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":32231000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":32231000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":32231000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":32239000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":32239000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":32239000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":32413000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1"},{"start":"2015-04-01","end":"2015-06-30","val":32733000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":32733000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2015-06-30","val":32733000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2015-04-01","end":"2015-06-30","val":32733000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":32627000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":32627000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":32380000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":32380000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-07-01","end":"2015-09-30","val":32380000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":32380000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015Q3"},{"start":"2015-04-01","end":"2015-12-31","val":32483000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":32483000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":32343000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":32343000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-10-01","end":"2015-12-31","val":32343000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":32343000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":32381000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":32381000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":32076000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2016-01-01","end":"2016-03-31","val":32076000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1"},{"start":"2016-04-01","end":"2016-06-30","val":32001000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":32001000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"start":"2016-04-01","end":"2016-06-30","val":32001000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":32074000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":32074000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":32145000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":32145000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"start":"2016-07-01","end":"2016-09-30","val":32145000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-04-01","end":"2016-12-31","val":32119000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":32209000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":32209000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q4"},{"start":"2016-04-01","end":"2017-03-31","val":32248000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":32635000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1"},{"start":"2017-04-01","end":"2017-06-30","val":33044000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":33572000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":34099000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"}]}},"WeightedAverageNumberOfSharesOutstandingBasic":{"label":"Weighted Average Number of Shares Outstanding, Basic","description":"Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.","units":{"shares":[{"start":"2009-04-01","end":"2010-03-31","val":31005000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08","frame":"CY2009"},{"start":"2010-04-01","end":"2010-06-30","val":31332000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-09-30","val":31269000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":31149000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2010-04-01","end":"2010-12-31","val":31210000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2010-10-01","end":"2010-12-31","val":31096000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03","frame":"CY2010Q4"},{"start":"2010-04-01","end":"2011-03-31","val":31235000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2010-04-01","end":"2011-03-31","val":31235000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":31508000,"accn":"0000950123-11-073243","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":31508000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-09-30","val":31445000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-04-01","end":"2011-09-30","val":31445000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":31383000,"accn":"0001193125-11-297315","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":31383000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2011-04-01","end":"2011-12-31","val":31335000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-04-01","end":"2011-12-31","val":31335000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2011-10-01","end":"2011-12-31","val":31203000,"accn":"0001193125-12-038565","fy":2011,"fp":"Q3","form":"10-Q","filed":"2012-02-03"},{"start":"2011-10-01","end":"2011-12-31","val":31203000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01","frame":"CY2011Q4"},{"start":"2011-04-01","end":"2012-03-31","val":31344000,"accn":"0001193125-12-264150","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-08"},{"start":"2011-04-01","end":"2012-03-31","val":31344000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2011-04-01","end":"2012-03-31","val":31344000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13","frame":"CY2011"},{"start":"2012-04-01","end":"2012-06-30","val":31351000,"accn":"0001193125-12-333595","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":31351000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-09-30","val":31331000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-04-01","end":"2012-09-30","val":31331000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2012-07-01","end":"2012-09-30","val":31310000,"accn":"0001193125-12-448721","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":31310000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04","frame":"CY2012Q3"},{"start":"2012-04-01","end":"2012-12-31","val":31222000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-04-01","end":"2012-12-31","val":31222000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2012-10-01","end":"2012-12-31","val":31005000,"accn":"0001193125-13-033657","fy":2012,"fp":"Q3","form":"10-Q","filed":"2013-02-01"},{"start":"2012-10-01","end":"2012-12-31","val":31005000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06","frame":"CY2012Q4"},{"start":"2012-04-01","end":"2013-03-31","val":31025000,"accn":"0001193125-13-258469","fy":2012,"fp":"FY","form":"10-K","filed":"2013-06-14"},{"start":"2012-04-01","end":"2013-03-31","val":31025000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2012-04-01","end":"2013-03-31","val":31025000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":30948000,"accn":"0001193125-13-329198","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":30948000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-09-30","val":31037000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-04-01","end":"2013-09-30","val":31037000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2013-07-01","end":"2013-09-30","val":31127000,"accn":"0001193125-13-425078","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-11-04"},{"start":"2013-07-01","end":"2013-09-30","val":31127000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10","frame":"CY2013Q3"},{"start":"2013-04-01","end":"2013-12-31","val":31088000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-04-01","end":"2013-12-31","val":31088000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2013-10-01","end":"2013-12-31","val":31192000,"accn":"0001193125-14-039010","fy":2013,"fp":"Q3","form":"10-Q","filed":"2014-02-06"},{"start":"2013-10-01","end":"2013-12-31","val":31192000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04","frame":"CY2013Q4"},{"start":"2013-04-01","end":"2014-03-31","val":31146000,"accn":"0001193125-14-236095","fy":2014,"fp":"FY","form":"10-K","filed":"2014-06-13"},{"start":"2013-04-01","end":"2014-03-31","val":31146000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2013-04-01","end":"2014-03-31","val":31146000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2013"},{"start":"2014-04-01","end":"2014-06-30","val":31379000,"accn":"0001193125-14-301629","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":31379000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2014-04-01","end":"2014-06-30","val":31379000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-09-30","val":31439000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-04-01","end":"2014-09-30","val":31439000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":31499000,"accn":"0001193125-14-403960","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-11-10"},{"start":"2014-07-01","end":"2014-09-30","val":31499000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2014-07-01","end":"2014-09-30","val":31499000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014Q3"},{"start":"2014-04-01","end":"2014-12-31","val":31488000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-04-01","end":"2014-12-31","val":31488000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":31585000,"accn":"0001193125-15-033680","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":31585000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2014-10-01","end":"2014-12-31","val":31585000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2014Q4"},{"start":"2014-04-01","end":"2015-03-31","val":31531000,"accn":"0001193125-15-220431","fy":2015,"fp":"FY","form":"10-K","filed":"2015-06-11"},{"start":"2014-04-01","end":"2015-03-31","val":31531000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2014-04-01","end":"2015-03-31","val":31531000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":31663000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09","frame":"CY2015Q1"},{"start":"2015-04-01","end":"2015-06-30","val":31746000,"accn":"0001193125-15-276022","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-08-04"},{"start":"2015-04-01","end":"2015-06-30","val":31746000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2015-06-30","val":31746000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2015-04-01","end":"2015-06-30","val":31746000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-09-30","val":31769000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-04-01","end":"2015-09-30","val":31769000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":31651000,"accn":"0001193125-15-365156","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":31651000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-07-01","end":"2015-09-30","val":31651000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2015-07-01","end":"2015-09-30","val":31651000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015Q3"},{"start":"2015-04-01","end":"2015-12-31","val":31626000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-04-01","end":"2015-12-31","val":31626000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":31487000,"accn":"0001193125-16-450676","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-02-04"},{"start":"2015-10-01","end":"2015-12-31","val":31487000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-10-01","end":"2015-12-31","val":31487000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2015-10-01","end":"2015-12-31","val":31487000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015Q4"},{"start":"2015-04-01","end":"2016-03-31","val":31579000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2015-04-01","end":"2016-03-31","val":31579000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":31441000,"accn":"0001193125-16-616907","fy":2016,"fp":"FY","form":"10-K","filed":"2016-06-09"},{"start":"2016-01-01","end":"2016-03-31","val":31441000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q1"},{"start":"2016-04-01","end":"2016-06-30","val":31401000,"accn":"0001193125-16-668529","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-08-02"},{"start":"2016-04-01","end":"2016-06-30","val":31401000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"start":"2016-04-01","end":"2016-06-30","val":31401000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":31447000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-04-01","end":"2016-09-30","val":31447000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":31490000,"accn":"0001193125-16-758789","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":31490000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12"},{"start":"2016-07-01","end":"2016-09-30","val":31490000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-04-01","end":"2016-12-31","val":31484000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":31558000,"accn":"0001193125-17-032430","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-02-07"},{"start":"2016-10-01","end":"2016-12-31","val":31558000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016Q4"},{"start":"2016-04-01","end":"2017-03-31","val":31544000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":31724000,"accn":"0001193125-17-200957","fy":2017,"fp":"FY","form":"10-K","filed":"2017-06-12","frame":"CY2017Q1"},{"start":"2017-04-01","end":"2017-06-30","val":32086000,"accn":"0001193125-17-248315","fy":2018,"fp":"Q1","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-09-30","val":32364000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":32642000,"accn":"0001193125-17-331841","fy":2018,"fp":"Q2","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"}]}}}}}