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longer).","units":{"USD":[{"end":"2011-04-30","val":600726,"accn":"0001161697-11-000847","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-14"},{"end":"2011-04-30","val":600726,"accn":"0001161697-11-001105","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-20"},{"end":"2011-04-30","val":600726,"accn":"0001161697-12-000153","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-16"},{"end":"2011-04-30","val":600726,"accn":"0001161697-12-000582","fy":2012,"fp":"FY","form":"10-K","filed":"2012-07-30","frame":"CY2011Q1I"},{"end":"2011-07-31","val":636055,"accn":"0001161697-11-000847","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-14","frame":"CY2011Q2I"},{"end":"2011-10-31","val":769013,"accn":"0001161697-11-001105","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-20","frame":"CY2011Q3I"},{"end":"2012-01-31","val":590303,"accn":"0001161697-12-000153","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-16","frame":"CY2011Q4I"},{"end":"2012-04-30","val":708874,"accn":"0001161697-12-000582","fy":2012,"fp":"FY","form":"10-K","filed":"2012-07-30"},{"end":"2012-04-30","val":708874,"accn":"0001161697-12-000715","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-09-14"},{"end":"2012-04-30","val":708874,"accn":"0001161697-12-000919","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-14"},{"end":"2012-04-30","val":708874,"accn":"0001161697-13-000220","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-25"},{"end":"2012-04-30","val":708874,"accn":"0001161697-13-000565","fy":2013,"fp":"FY","form":"10-K","filed":"2013-08-13","frame":"CY2012Q1I"},{"end":"2012-07-31","val":772305,"accn":"0001161697-12-000715","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-09-14","frame":"CY2012Q2I"},{"end":"2012-10-31","val":704013,"accn":"0001161697-12-000919","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-14","frame":"CY2012Q3I"},{"end":"2013-01-31","val":735357,"accn":"0001161697-13-000220","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-25","frame":"CY2012Q4I"},{"end":"2013-04-30","val":867350,"accn":"0001161697-13-000565","fy":2013,"fp":"FY","form":"10-K","filed":"2013-08-13"},{"end":"2013-04-30","val":867350,"accn":"0001161697-13-000693","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-19"},{"end":"2013-04-30","val":523741,"accn":"0001161697-13-000910","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-23"},{"end":"2013-04-30","val":523741,"accn":"0001161697-14-000109","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-03-17"},{"end":"2013-04-30","val":829422,"accn":"0001161697-14-000367","fy":2013,"fp":"FY","form":"10-K","filed":"2014-07-24","frame":"CY2013Q1I"},{"end":"2013-07-31","val":879087,"accn":"0001161697-13-000693","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-19","frame":"CY2013Q2I"},{"end":"2013-10-31","val":372177,"accn":"0001161697-13-000910","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-23","frame":"CY2013Q3I"},{"end":"2013-12-31","val":347967,"accn":"0001161697-14-000367","fy":2013,"fp":"FY","form":"10-K","filed":"2014-07-24"},{"end":"2013-12-31","val":347967,"accn":"0001161697-14-000369","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-07-25"},{"end":"2013-12-31","val":347967,"accn":"0001161697-14-000393","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-14"},{"end":"2013-12-31","val":347967,"accn":"0001161697-14-000555","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-14"},{"end":"2013-12-31","val":347967,"accn":"0001161697-15-000148","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-31","frame":"CY2013Q4I"},{"end":"2014-01-31","val":343805,"accn":"0001161697-14-000109","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-03-17"},{"end":"2014-03-31","val":361816,"accn":"0001161697-14-000369","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-07-25","frame":"CY2014Q1I"},{"end":"2014-06-30","val":311595,"accn":"0001161697-14-000393","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-14","frame":"CY2014Q2I"},{"end":"2014-09-30","val":325776,"accn":"0001161697-14-000555","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-14","frame":"CY2014Q3I"},{"end":"2014-12-31","val":329103,"accn":"0001161697-15-000148","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-31"},{"end":"2014-12-31","val":311977,"accn":"0001161697-15-000217","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13"},{"end":"2014-12-31","val":311977,"accn":"0001161697-15-000342","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-14"},{"end":"2014-12-31","val":311977,"accn":"0001161697-15-000487","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-16"},{"end":"2014-12-31","val":314046,"accn":"0001161697-16-000771","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-31","frame":"CY2014Q4I"},{"end":"2015-03-31","val":302729,"accn":"0001161697-15-000217","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-13","frame":"CY2015Q1I"},{"end":"2015-06-30","val":339143,"accn":"0001161697-15-000342","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-14","frame":"CY2015Q2I"},{"end":"2015-09-30","val":309834,"accn":"0001161697-15-000487","fy":2015,"fp":"Q3","form":"1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Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.","units":{"USD":[{"end":"2013-04-30","val":32400,"accn":"0001161697-13-000565","fy":2013,"fp":"FY","form":"10-K","filed":"2013-08-13","frame":"CY2013Q1I"},{"end":"2013-12-31","val":13500,"accn":"0001161697-14-000367","fy":2013,"fp":"FY","form":"10-K","filed":"2014-07-24","frame":"CY2013Q4I"}]}},"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. 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