{"cik":713002,"entityName":"FLOW INTERNATIONAL CORP","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":"2010-08-16","val":47150218,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2010Q3I"},{"end":"2010-11-24","val":47169032,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2010Q4I"},{"end":"2011-02-22","val":47331261000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2011Q1I"},{"end":"2011-06-14","val":47430992,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2011Q2I"},{"end":"2011-08-22","val":47720076000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2011Q3I"},{"end":"2011-12-01","val":47856579000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2011Q4I"},{"end":"2012-02-22","val":47859450000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2012Q1I"},{"end":"2012-06-15","val":47918765,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2012Q2I"},{"end":"2012-08-23","val":48317502,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q3I"},{"end":"2012-11-27","val":48417269,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q4I"},{"end":"2013-02-26","val":48423308,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2013Q1I"},{"end":"2013-07-23","val":48785906,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q2I"},{"end":"2013-09-06","val":48937839,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q3I"},{"end":"2013-11-29","val":49052011,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q4I"}]}},"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":"2010-10-31","val":119923022,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010Q3I"},{"end":"2011-10-31","val":118662230,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011Q3I"},{"end":"2013-10-31","val":152261857,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q3I"}]}}},"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":"2010-04-30","val":15306000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010Q1I"},{"end":"2010-04-30","val":15306000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2010-04-30","val":15306000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2010-04-30","val":15306000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2010-07-31","val":14581000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2010Q2I"},{"end":"2010-10-31","val":15354000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2010Q3I"},{"end":"2011-01-31","val":15531000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2010Q4I"},{"end":"2011-04-30","val":17363000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2011-04-30","val":17363000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2011-04-30","val":17363000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011Q1I"},{"end":"2011-04-30","val":17363000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2011-04-30","val":17363000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2011-07-31","val":18098000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2011Q2I"},{"end":"2011-10-31","val":19805000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2011Q3I"},{"end":"2012-01-31","val":16669000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2011Q4I"},{"end":"2012-04-30","val":22577000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":22577000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":22577000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":22577000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-04-30","val":22577000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2012-07-31","val":22834000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2012-10-31","val":23071000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":19057000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":17166000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":17166000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10"},{"end":"2013-04-30","val":17166000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2013-07-31","val":16680000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2013-10-31","val":20890000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"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":"2012-04-30","val":47954000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":47954000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":47954000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":47954000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-07-31","val":48349000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2012-10-31","val":48645000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":53944000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":43647000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":43647000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10"},{"end":"2013-04-30","val":43647000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2013-07-31","val":47417000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2013-10-31","val":50726000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"AccretionExpense":{"label":"Accretion Expense","description":"Amount recognized for the passage of time, typically for liabilities, that have been discounted to their net present values. Excludes accretion associated with asset retirement obligations.","units":{"USD":[{"start":"2008-05-01","end":"2009-04-30","val":0,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":214000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":383000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":556000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":735000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":735000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":183000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":183000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":372000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":372000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-05-01","end":"2011-01-31","val":568000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":568000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-05-01","end":"2011-04-30","val":769000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":769000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":769000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":207000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":207000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":420000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":420000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":639000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":639000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":864000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":864000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":233000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":233000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":472000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":472000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":718000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":972000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":261000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":265000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"}]}},"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":"2012-04-30","val":31252000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2013-04-30","val":34963000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1I"}]}},"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":"2010-04-30","val":-9000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010Q1I"},{"end":"2010-04-30","val":-9000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2010-04-30","val":-9000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2010-04-30","val":-9000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2010-07-31","val":-9000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2010Q2I"},{"end":"2010-10-31","val":-9000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2010Q3I"},{"end":"2011-01-31","val":-9000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2010Q4I"},{"end":"2011-04-30","val":68000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2011-04-30","val":68000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2011-04-30","val":68000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011Q1I"},{"end":"2011-04-30","val":68000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2011-04-30","val":68000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2011-07-31","val":68000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2011Q2I"},{"end":"2011-10-31","val":68000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2011Q3I"},{"end":"2012-01-31","val":68000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2011Q4I"},{"end":"2012-04-30","val":81000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":81000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":81000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":81000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-04-30","val":81000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2012-07-31","val":81000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2012-10-31","val":81000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":81000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":127000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":127000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10"},{"end":"2013-04-30","val":127000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2013-07-31","val":127000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2013-10-31","val":127000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"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":"2010-04-30","val":-4568000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010Q1I"},{"end":"2010-04-30","val":-4568000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2010-04-30","val":-4568000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2010-04-30","val":-4568000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2010-07-31","val":-4845000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2010Q2I"},{"end":"2010-10-31","val":-3913000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2010Q3I"},{"end":"2011-01-31","val":-3646000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2010Q4I"},{"end":"2011-04-30","val":-3567000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2011-04-30","val":-3567000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2011-04-30","val":-3567000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011Q1I"},{"end":"2011-04-30","val":-3567000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2011-04-30","val":-3567000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2011-07-31","val":-3476000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2011Q2I"},{"end":"2011-10-31","val":-4444000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2011Q3I"},{"end":"2012-01-31","val":-4770000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2011Q4I"},{"end":"2012-04-30","val":-4555000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":-4555000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":-4555000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":-4555000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-04-30","val":-4555000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2012-07-31","val":-5944000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2012-10-31","val":-5325000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":-5124000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":-5725000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":-5725000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10"},{"end":"2013-04-30","val":-5725000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2013-07-31","val":-6001000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2013-10-31","val":-5024000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"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":"2010-04-30","val":159605000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010Q1I"},{"end":"2010-04-30","val":159605000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2010-04-30","val":159605000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2010-04-30","val":159605000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2010-07-31","val":159945000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2010Q2I"},{"end":"2010-10-31","val":160466000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2010Q3I"},{"end":"2011-01-31","val":161347000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2010Q4I"},{"end":"2011-04-30","val":161741000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2011-04-30","val":161741000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2011-04-30","val":161741000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011Q1I"},{"end":"2011-04-30","val":161741000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2011-04-30","val":161741000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2011-07-31","val":161927000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2011Q2I"},{"end":"2011-10-31","val":162768000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2011Q3I"},{"end":"2012-01-31","val":163273000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2011Q4I"},{"end":"2012-04-30","val":164882000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":164882000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":164882000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":164882000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-04-30","val":164882000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2012-07-31","val":165226000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2012-10-31","val":165864000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":166388000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":166737000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":166737000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10"},{"end":"2013-04-30","val":166737000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2013-07-31","val":166602000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2013-10-31","val":167363000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesOther":{"label":"Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities, Other (Deprecated 2011-01-31)","description":"Transactions that do not result in cash inflows or outflows in the period in which they occur, but affect net income and thus are removed when calculating net cash flow from operating activities using the indirect cash flow method. This element is used when there is not a more specific and appropriate element.","units":{"USD":[{"start":"2008-05-01","end":"2009-04-30","val":539000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":51000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":-455000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":-447000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":112000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":9000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":9000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":12000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2011-01-31","val":69000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-04-30","val":261000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010"},{"start":"2011-05-01","end":"2011-07-31","val":2000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2011Q2"}]}},"AllocatedShareBasedCompensationExpense":{"label":"Share-based Payment Arrangement, Expense","description":"Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.","units":{"USD":[{"start":"2012-05-01","end":"2012-07-31","val":700000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2013-05-01","end":"2013-07-31","val":500000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"}]}},"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":"2012-04-30","val":1124000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":1124000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":1124000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":1124000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-07-31","val":905000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2012-10-31","val":1012000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":1009000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":906000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":906000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10"},{"end":"2013-04-30","val":906000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2013-07-31","val":875000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2013-10-31","val":956000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"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":"2010-05-01","end":"2011-04-30","val":400000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":500000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":600000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"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":"2010-04-30","val":131209000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010Q1I"},{"end":"2010-04-30","val":131209000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2010-04-30","val":131209000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2010-04-30","val":131209000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2010-07-31","val":130627000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2010Q2I"},{"end":"2010-10-31","val":138264000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2010Q3I"},{"end":"2011-01-31","val":141941000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2010Q4I"},{"end":"2011-04-30","val":153063000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2011-04-30","val":153063000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2011-04-30","val":153063000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011Q1I"},{"end":"2011-04-30","val":153063000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2011-04-30","val":153063000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2011-07-31","val":150045000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2011Q2I"},{"end":"2011-10-31","val":156237000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2011Q3I"},{"end":"2012-01-31","val":155781000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2011Q4I"},{"end":"2012-04-30","val":167066000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":167066000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":167066000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":167066000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-04-30","val":167066000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2012-07-31","val":164306000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2012-10-31","val":170427000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":170055000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":162093000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":162093000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10"},{"end":"2013-04-30","val":162093000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2013-07-31","val":163332000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2013-10-31","val":165840000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"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":"2010-04-30","val":74095000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010Q1I"},{"end":"2010-04-30","val":74095000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2010-04-30","val":74095000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2010-04-30","val":74095000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2010-07-31","val":76059000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2010Q2I"},{"end":"2010-10-31","val":83678000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2010Q3I"},{"end":"2011-01-31","val":88534000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2010Q4I"},{"end":"2011-04-30","val":98092000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2011-04-30","val":98092000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2011-04-30","val":98092000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011Q1I"},{"end":"2011-04-30","val":98092000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2011-04-30","val":98092000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2011-07-31","val":94630000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2011Q2I"},{"end":"2011-10-31","val":102267000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2011Q3I"},{"end":"2012-01-31","val":104183000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2011Q4I"},{"end":"2012-04-30","val":115545000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":115545000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":115545000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":115545000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-04-30","val":115545000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2012-07-31","val":112795000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2012-10-31","val":122420000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":123713000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":116459000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":116459000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10"},{"end":"2013-04-30","val":116459000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2013-07-31","val":118236000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2013-10-31","val":119314000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"CapitalExpendituresIncurredButNotYetPaid":{"label":"Capital Expenditures Incurred but Not yet Paid","description":"Future cash outflow to pay for purchases of fixed assets that have occurred.","units":{"USD":[{"start":"2008-05-01","end":"2009-04-30","val":2352000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":2379000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":274000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":383000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":516000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":516000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":180000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":180000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":794000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":794000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-05-01","end":"2011-01-31","val":222000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":222000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-05-01","end":"2011-04-30","val":135000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":135000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":135000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":983000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":983000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":560000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":560000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":338000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":338000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":949000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":949000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":1305000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":1305000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":968000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":968000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":457000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":781000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":351000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":351000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"}]}},"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":"2008-04-30","val":29099000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008Q1I"},{"end":"2009-04-30","val":10117000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2009-04-30","val":10117000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2009-04-30","val":10117000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2009-04-30","val":10117000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2009-04-30","val":10117000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009Q1I"},{"end":"2009-07-31","val":6761000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2I"},{"end":"2009-10-31","val":5040000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2009Q3I"},{"end":"2010-01-31","val":6622000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2009Q4I"},{"end":"2010-04-30","val":6367000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2010-04-30","val":6367000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2010-04-30","val":6367000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2010-04-30","val":6367000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2010-04-30","val":6367000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2010-04-30","val":6367000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010Q1I"},{"end":"2010-04-30","val":6367000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2010-04-30","val":6367000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2010-04-30","val":6367000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2010-07-31","val":7224000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2I"},{"end":"2010-07-31","val":7224000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2010-10-31","val":6892000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2010-10-31","val":6892000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2010Q3I"},{"end":"2011-01-31","val":8001000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2011-01-31","val":8001000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2010Q4I"},{"end":"2011-04-30","val":9096000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2011-04-30","val":9096000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2011-04-30","val":9096000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011Q1I"},{"end":"2011-04-30","val":9096000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2011-04-30","val":9096000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2011-04-30","val":9096000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2011-04-30","val":9096000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2011-04-30","val":9096000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2011-04-30","val":9096000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2011-07-31","val":7941000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2011-07-31","val":7941000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2I"},{"end":"2011-10-31","val":9618000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2011Q3I"},{"end":"2011-10-31","val":9618000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2012-01-31","val":10185000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2011Q4I"},{"end":"2012-01-31","val":10185000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2012-04-30","val":12942000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2012Q1I"},{"end":"2012-04-30","val":12942000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10"},{"end":"2012-04-30","val":12942000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2012-04-30","val":12942000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":12942000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":12942000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-04-30","val":12942000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2012-07-31","val":10599000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2I"},{"end":"2012-07-31","val":10599000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-10-31","val":15273000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2012Q3I"},{"end":"2012-10-31","val":15273000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2013-01-31","val":12539000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":15465000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":15465000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10"},{"end":"2013-04-30","val":15465000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2013-07-31","val":13440000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2013-10-31","val":14317000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"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":"2008-05-01","end":"2009-04-30","val":-18982000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":-3356000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":-5077000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":-3495000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":-3750000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":-3750000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":857000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":857000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":525000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":525000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-05-01","end":"2011-01-31","val":1634000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":1634000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-05-01","end":"2011-04-30","val":2729000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":2729000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":2729000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":-1155000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":-1155000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":522000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":522000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":1089000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":1089000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":3846000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":3846000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":-2343000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":-2343000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":2331000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":2331000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":-403000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":2523000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":-2025000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":-1148000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"}]}},"CashDividendsPaidToParentCompanyByConsolidatedSubsidiaries":{"label":"SEC Schedule, 12-04, Cash Dividends Paid to Registrant, Consolidated Subsidiaries","description":"This element represents disclosure of the aggregate cash dividends paid to the entity by consolidated subsidiaries.","units":{"USD":[{"start":"2010-05-01","end":"2011-04-30","val":1900000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"}]}},"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":"2010-04-30","val":0.01,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010Q1I"},{"end":"2010-04-30","val":0.01,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2010-04-30","val":0.01,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2010-04-30","val":0.01,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2010-07-31","val":0.01,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2010Q2I"},{"end":"2010-10-31","val":0.01,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2010Q3I"},{"end":"2011-01-31","val":0.01,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2010Q4I"},{"end":"2011-04-30","val":0.01,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2011-04-30","val":0.01,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2011-04-30","val":0.01,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011Q1I"},{"end":"2011-04-30","val":0.01,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2011-04-30","val":0.01,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2011-07-31","val":0.01,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2011Q2I"},{"end":"2011-10-31","val":0.01,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2011Q3I"},{"end":"2012-01-31","val":0.01,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2011Q4I"},{"end":"2012-04-30","val":0.01,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":0.01,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":0.01,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":0.01,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-04-30","val":0.01,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2012-07-31","val":0.01,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2012-10-31","val":0.01,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":0.01,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":0.01,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":0.01,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10"},{"end":"2013-04-30","val":0.01,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2013-07-31","val":0.01,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2013-10-31","val":0.01,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"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":"2010-04-30","val":84000000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010Q1I"},{"end":"2010-04-30","val":84000000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2010-04-30","val":84000000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2010-04-30","val":84000000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2010-07-31","val":84000000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2010Q2I"},{"end":"2010-10-31","val":84000000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2010Q3I"},{"end":"2011-01-31","val":84000000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2010Q4I"},{"end":"2011-04-30","val":84000000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2011-04-30","val":84000000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2011-04-30","val":84000000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011Q1I"},{"end":"2011-04-30","val":84000000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2011-04-30","val":84000000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2011-07-31","val":84000000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2011Q2I"},{"end":"2011-10-31","val":84000000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2011Q3I"},{"end":"2012-01-31","val":84000000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2011Q4I"},{"end":"2012-04-30","val":84000000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":84000000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":84000000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":84000000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-04-30","val":84000000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2012-07-31","val":84000000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2012-10-31","val":84000000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":84000000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":84000000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":84000000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10"},{"end":"2013-04-30","val":84000000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2013-07-31","val":84000000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2013-10-31","val":84000000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"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":"2010-04-30","val":46927000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010Q1I"},{"end":"2010-04-30","val":47168000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2010-04-30","val":46927000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2010-04-30","val":46927000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2010-07-31","val":47150000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2010Q2I"},{"end":"2010-10-31","val":47168000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2010Q3I"},{"end":"2011-01-31","val":47331000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2010Q4I"},{"end":"2011-04-30","val":47378000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2011-04-30","val":47378000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2011-04-30","val":47378000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011Q1I"},{"end":"2011-04-30","val":47378000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2011-04-30","val":47378000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2011-07-31","val":47720000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2011Q2I"},{"end":"2011-10-31","val":47857000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2011Q3I"},{"end":"2012-01-31","val":47859000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2011Q4I"},{"end":"2012-04-30","val":47891000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":47891000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":47891000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":47891000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-04-30","val":47891000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2012-07-31","val":48317000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2012-10-31","val":48413000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":48413000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":48452000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":48452000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10"},{"end":"2013-04-30","val":48452000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2013-07-31","val":48913000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2013-10-31","val":49046000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"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":"2010-04-30","val":46927000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010Q1I"},{"end":"2010-04-30","val":47168000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2010-04-30","val":46927000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2010-04-30","val":46927000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2010-07-31","val":47150000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2010Q2I"},{"end":"2010-10-31","val":47168000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2010Q3I"},{"end":"2011-01-31","val":47331000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2010Q4I"},{"end":"2011-04-30","val":47378000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2011-04-30","val":47378000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2011-04-30","val":47378000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011Q1I"},{"end":"2011-04-30","val":47378000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2011-04-30","val":47378000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2011-07-31","val":47720000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2011Q2I"},{"end":"2011-10-31","val":47857000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2011Q3I"},{"end":"2012-01-31","val":47859000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2011Q4I"},{"end":"2012-04-30","val":47891000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":47891000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":47891000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":47891000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-04-30","val":47891000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2012-07-31","val":48317000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2012-10-31","val":48413000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":48413000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":48452000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":48452000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10"},{"end":"2013-04-30","val":48452000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2013-07-31","val":48913000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2013-10-31","val":49046000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"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":"2010-04-30","val":465000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010Q1I"},{"end":"2010-04-30","val":465000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2010-04-30","val":465000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2010-04-30","val":465000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2010-07-31","val":467000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2010Q2I"},{"end":"2010-10-31","val":467000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2010Q3I"},{"end":"2011-01-31","val":469000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2010Q4I"},{"end":"2011-04-30","val":469000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2011-04-30","val":469000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2011-04-30","val":469000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011Q1I"},{"end":"2011-04-30","val":469000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2011-04-30","val":469000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2011-07-31","val":472000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2011Q2I"},{"end":"2011-10-31","val":474000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2011Q3I"},{"end":"2012-01-31","val":474000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2011Q4I"},{"end":"2012-04-30","val":474000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":474000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":474000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":474000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-04-30","val":474000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2012-07-31","val":480000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2012-10-31","val":481000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":481000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":484000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":484000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10"},{"end":"2013-04-30","val":484000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2013-07-31","val":488000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2013-10-31","val":490000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"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":"2009-05-01","end":"2010-04-30","val":-6151000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2011-04-30","val":1690000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":1690000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":802000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":2613000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-08-01","end":"2011-10-31","val":1811000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2011Q3"},{"start":"2011-05-01","end":"2012-01-31","val":5603000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-11-01","end":"2012-01-31","val":2990000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2011Q4"},{"start":"2011-05-01","end":"2012-04-30","val":8448000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":8448000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":832000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":832000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":3561000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":3561000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-08-01","end":"2012-10-31","val":2729000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2012Q3"},{"start":"2012-08-01","end":"2012-10-31","val":2729000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":6373000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-11-01","end":"2013-01-31","val":2812000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4"},{"start":"2012-05-01","end":"2013-04-30","val":3821000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":-1121000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":1946000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2013-08-01","end":"2013-10-31","val":3067000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3"}]}},"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":"2013-04-30","val":3700000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1I"}]}},"CostOfGoodsAndServicesSold":{"label":"Cost of Goods and Services Sold","description":"The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.","units":{"USD":[{"start":"2008-05-01","end":"2009-04-30","val":121775000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":23776000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":49181000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-08-01","end":"2009-10-31","val":25405000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2009Q3"},{"start":"2009-05-01","end":"2010-01-31","val":76314000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-11-01","end":"2010-01-31","val":27133000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2009Q4"},{"start":"2009-05-01","end":"2010-04-30","val":105982000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":105982000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":27247000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":27247000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":60329000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":60329000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-08-01","end":"2010-10-31","val":33082000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-08-01","end":"2010-10-31","val":33082000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2010Q3"},{"start":"2010-05-01","end":"2011-01-31","val":94710000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":94710000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-11-01","end":"2011-01-31","val":34381000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-11-01","end":"2011-01-31","val":34381000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2010Q4"},{"start":"2010-05-01","end":"2011-04-30","val":132063000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":132063000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":132063000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":36910000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":36910000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":76127000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":76127000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-08-01","end":"2011-10-31","val":39217000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2011Q3"},{"start":"2011-08-01","end":"2011-10-31","val":39217000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":115864000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":115864000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-11-01","end":"2012-01-31","val":39737000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2011Q4"},{"start":"2011-11-01","end":"2012-01-31","val":39737000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":154400000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":154400000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":41442000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":41442000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":83060000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":83060000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-08-01","end":"2012-10-31","val":41618000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2012Q3"},{"start":"2012-08-01","end":"2012-10-31","val":41618000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":124065000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-11-01","end":"2013-01-31","val":41005000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4"},{"start":"2012-05-01","end":"2013-04-30","val":161416000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":37395000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":77965000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2013-08-01","end":"2013-10-31","val":40570000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3"}]}},"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":"2010-05-01","end":"2011-04-30","val":-993000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":-189000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":-298000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"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":"2010-05-01","end":"2011-04-30","val":2102000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":2049000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":2260000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"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":"2010-05-01","end":"2011-04-30","val":1139000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":1972000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":2044000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"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":"2010-05-01","end":"2011-04-30","val":30000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":112000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":82000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"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":"2010-05-01","end":"2011-04-30","val":549000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":1652000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":2674000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"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":"2010-05-01","end":"2011-04-30","val":955000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":-299000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":167000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"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":"2008-05-01","end":"2009-04-30","val":-9264000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":-1061000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":-1207000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":-1735000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":-4131000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":-4131000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":1035000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":1035000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":947000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":947000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-05-01","end":"2011-01-31","val":1585000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":1585000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-05-01","end":"2011-04-30","val":2368000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":1756000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":2368000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":-57000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":-57000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":1189000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":1189000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":2437000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":2437000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":1304000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":720000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":1454000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":1454000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":2667000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":2667000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":3981000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":3085000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":-48000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":1393000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"}]}},"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":"2010-05-01","end":"2011-04-30","val":252000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":-49000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":244000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"DeferredTaxAssetsLiabilitiesNet":{"label":"Deferred Tax Assets, Net","description":"Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting.","units":{"USD":[{"end":"2012-04-30","val":20829000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2013-04-30","val":17615000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1I"}]}},"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":"2012-04-30","val":3302000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2013-04-30","val":7404000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1I"}]}},"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":"2012-04-30","val":17527000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2013-04-30","val":10211000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1I"}]}},"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":"2010-04-30","val":2486000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2010Q1I"},{"end":"2010-04-30","val":2486000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2010-07-31","val":2406000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2010Q2I"},{"end":"2010-10-31","val":2521000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2010Q3I"}]}},"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":"2010-04-30","val":26330000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010Q1I"},{"end":"2010-04-30","val":26330000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2010-04-30","val":26330000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2010-04-30","val":26330000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2010-07-31","val":25283000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2010Q2I"},{"end":"2010-10-31","val":25689000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2010Q3I"},{"end":"2011-01-31","val":25264000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2010Q4I"},{"end":"2011-04-30","val":25171000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2011-04-30","val":25171000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2011-04-30","val":25171000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011Q1I"},{"end":"2011-04-30","val":25171000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2011-04-30","val":25171000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2011-07-31","val":25630000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2011Q2I"},{"end":"2011-10-31","val":24751000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2011Q3I"},{"end":"2012-01-31","val":23465000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2011Q4I"},{"end":"2012-04-30","val":23304000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":23304000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":23304000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":23304000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-04-30","val":23304000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2012-07-31","val":23198000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2012-10-31","val":19078000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":17737000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":16515000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":16515000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10"},{"end":"2013-04-30","val":16515000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2013-07-31","val":16706000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2013-10-31","val":18885000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"DeferredTaxAssetsValuationAllowanceCurrent":{"label":"Deferred Tax Assets, Valuation Allowance, Current","description":"Amount of valuation allowance of deferred tax asset attributable to deductible temporary differences and carryforwards, classified as current.","units":{"USD":[{"end":"2012-04-30","val":78000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2013-04-30","val":326000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1I"}]}},"DeferredTaxAssetsValuationAllowanceNoncurrent":{"label":"Deferred Tax Assets, Valuation Allowance, Noncurrent","description":"Amount of valuation allowance of deferred tax asset attributable to deductible temporary differences and carryforwards, classified as noncurrent.","units":{"USD":[{"end":"2012-04-30","val":7824000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2013-04-30","val":7309000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1I"}]}},"DeferredTaxLiabilitiesCurrent":{"label":"Deferred Tax Liabilities, Net, Current","description":"Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences, with jurisdictional netting and classified as current.","units":{"USD":[{"end":"2010-04-30","val":1086000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2010Q1I"},{"end":"2010-04-30","val":1086000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2010-07-31","val":1066000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2010Q2I"},{"end":"2010-10-31","val":1141000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2010Q3I"}]}},"DeferredTaxLiabilitiesNoncurrent":{"label":"Deferred Tax Liabilities, Net, Noncurrent","description":"Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences, with jurisdictional netting and classified as noncurrent.","units":{"USD":[{"end":"2010-04-30","val":3856000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010Q1I"},{"end":"2010-04-30","val":3856000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2010-04-30","val":3856000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2010-04-30","val":3856000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2010-07-31","val":3800000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2010Q2I"},{"end":"2010-10-31","val":3955000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2010Q3I"},{"end":"2011-01-31","val":4322000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2010Q4I"},{"end":"2011-04-30","val":5711000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2011-04-30","val":5711000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2011-04-30","val":5711000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011Q1I"},{"end":"2011-04-30","val":5711000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2011-04-30","val":5711000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2011-07-31","val":5517000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2011Q2I"},{"end":"2011-10-31","val":5746000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2011Q3I"},{"end":"2012-01-31","val":5885000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2011Q4I"},{"end":"2012-04-30","val":5777000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":5777000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":5777000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":5777000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-04-30","val":5777000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2012-07-31","val":5771000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2012-10-31","val":5901000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":5963000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":6313000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":6313000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10"},{"end":"2013-04-30","val":6313000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2013-07-31","val":6386000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2013-10-31","val":6544000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"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":"2012-04-30","val":1000000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2013-04-30","val":1100000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1I"}]}},"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":"2012-04-30","val":-100000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2013-04-30","val":-100000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1I"}]}},"DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetTransitionAssetsObligationsBeforeTax":{"label":"Defined Benefit Plan, Accumulated Other Comprehensive Income (Loss), Transition Asset (Obligation), before Tax","description":"Amount, before tax, of accumulated other comprehensive income (loss) for transition asset (obligation) of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit.","units":{"USD":[{"end":"2012-04-30","val":-100000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2013-04-30","val":-100000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1I"}]}},"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":"2011-05-01","end":"2012-04-30","val":9000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":13000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"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":"2011-05-01","end":"2012-04-30","val":-8000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":-54000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate":{"label":"Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate","description":"Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan.","units":{"pure":[{"end":"2012-04-30","val":0.019,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2013-04-30","val":0.0175,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1I"}]}},"DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease":{"label":"Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase","description":"Weighted average rate increase of compensation, used to determine benefit obligation of defined benefit plan. Plan includes, but is not limited to, pay-related defined benefit plan.","units":{"pure":[{"end":"2012-04-30","val":0.03,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2013-04-30","val":0.03,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1I"}]}},"DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets":{"label":"Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets","description":"Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of defined benefit plan.","units":{"pure":[{"start":"2011-05-01","end":"2012-04-30","val":0.019,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":0.0175,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"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":"2011-04-30","val":1327000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011Q1I"},{"end":"2012-04-30","val":1361000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2013-04-30","val":1445000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1I"}]}},"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":"2011-05-01","end":"2012-04-30","val":0,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":0,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"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":"2011-05-01","end":"2012-04-30","val":26000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":27000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"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":"2011-04-30","val":992000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011Q1I"},{"end":"2012-04-30","val":1013000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2013-04-30","val":1045000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1I"}]}},"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":"2011-05-01","end":"2012-04-30","val":-18000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":-10000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"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":"2011-05-01","end":"2012-04-30","val":-14000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":-8000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"DefinedBenefitPlanInterestCost":{"label":"Defined Benefit Plan, Interest Cost","description":"Amount of cost recognized for passage of time related to defined benefit plan.","units":{"USD":[{"start":"2011-05-01","end":"2012-04-30","val":26000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":25000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"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":"2010-05-01","end":"2011-04-30","val":100000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":100000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":100000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"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":"2011-05-01","end":"2012-04-30","val":18000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":15000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"DefinedContributionPlanEmployerDiscretionaryContributionAmount":{"label":"Defined Contribution Plan, Employer Discretionary Contribution Amount","description":"Amount of discretionary contributions made by an employer to a defined contribution plan.","units":{"USD":[{"start":"2010-05-01","end":"2011-04-30","val":400000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":800000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":900000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"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":"2010-05-01","end":"2011-04-30","val":5900000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":5700000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":5400000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"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":"2008-05-01","end":"2009-04-30","val":4343000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":1232000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":2593000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":4078000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":5725000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":5725000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":1622000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":1622000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":3184000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":3184000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-05-01","end":"2011-01-31","val":4706000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":4706000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-05-01","end":"2011-04-30","val":6302000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":6302000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":6302000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":1572000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":1572000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":3151000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":3151000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":4723000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":4723000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":6208000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":6208000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":1426000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":1426000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":2839000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":2839000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":4385000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":5919000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":1592000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":3227000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"}]}},"DiscontinuedOperationTaxEffectOfIncomeLossFromDisposalOfDiscontinuedOperation":{"label":"Discontinued Operation, Tax Effect of Gain (Loss) from Disposal of Discontinued Operation","description":"Amount of tax expense (benefit) on gain (loss) not previously recognized resulting from the disposal of a discontinued operation.","units":{"USD":[{"start":"2008-05-01","end":"2009-04-30","val":0,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":0,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":0,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-08-01","end":"2009-10-31","val":0,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2009Q3"},{"start":"2009-05-01","end":"2010-01-31","val":0,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-11-01","end":"2010-01-31","val":0,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2009Q4"},{"start":"2009-05-01","end":"2010-04-30","val":0,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":0,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":0,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":0,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":0,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":0,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-08-01","end":"2010-10-31","val":0,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-08-01","end":"2010-10-31","val":0,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2010Q3"},{"start":"2010-05-01","end":"2011-01-31","val":0,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":0,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-11-01","end":"2011-01-31","val":0,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-11-01","end":"2011-01-31","val":0,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2010Q4"},{"start":"2010-05-01","end":"2011-04-30","val":0,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":0,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2010"},{"start":"2011-05-01","end":"2011-07-31","val":0,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":0,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":0,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-08-01","end":"2011-10-31","val":0,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2011Q3"},{"start":"2011-05-01","end":"2012-01-31","val":0,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-11-01","end":"2012-01-31","val":0,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2011Q4"},{"start":"2011-05-01","end":"2012-04-30","val":0,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011"},{"start":"2012-05-01","end":"2012-07-31","val":0,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2"}]}},"DisposalGroupNotDiscontinuedOperationGainLossOnDisposal":{"label":"Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal","description":"Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations.","units":{"USD":[{"start":"2008-05-01","end":"2009-04-30","val":0,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2010-01-31","val":-1277000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":-1277000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":-1277000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2011-01-31","val":0,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-04-30","val":0,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":0,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":0,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011"}]}},"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":"2011-05-01","end":"2011-07-31","val":0.01,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011Q2"},{"start":"2011-08-01","end":"2011-10-31","val":0.06,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011Q3"},{"start":"2011-05-01","end":"2012-01-31","val":0.14,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-11-01","end":"2012-01-31","val":0.07,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011Q4"},{"start":"2011-11-01","end":"2012-01-31","val":0.07,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-04-30","val":0.2,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-02-01","end":"2012-04-30","val":0.06,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1"},{"start":"2012-05-01","end":"2012-07-31","val":0.05,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-10-31","val":0.09,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-08-01","end":"2012-10-31","val":0.04,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2012Q3"},{"start":"2012-08-01","end":"2012-10-31","val":0.04,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"start":"2012-05-01","end":"2013-01-31","val":0.14,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-11-01","end":"2013-01-31","val":0.05,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q4"},{"start":"2012-11-01","end":"2013-01-31","val":0.05,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":0.1,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-02-01","end":"2013-04-30","val":-0.04,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1"},{"start":"2013-05-01","end":"2013-10-31","val":0.03,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2013-08-01","end":"2013-10-31","val":0.04,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3"}]}},"EarningsPerShareBasicAndDiluted":{"label":"Earnings Per Share, Basic and Diluted","description":"The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or 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":"2009-05-01","end":"2010-04-30","val":-0.19,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2011-01-31","val":0.01,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-11-01","end":"2011-01-31","val":0.03,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2010Q4"},{"start":"2010-05-01","end":"2011-04-30","val":0.02,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":0.02,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":0.01,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":0.07,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-08-01","end":"2011-10-31","val":0.06,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2011Q3"},{"start":"2011-05-01","end":"2012-01-31","val":0.14,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-11-01","end":"2012-01-31","val":0.07,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2011Q4"},{"start":"2011-05-01","end":"2012-04-30","val":0.2,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":0.2,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":0.05,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":0.05,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":0.09,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-08-01","end":"2012-10-31","val":0.04,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3"},{"start":"2012-05-01","end":"2013-04-30","val":0.1,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":-0.02,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"}]}},"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":"2011-05-01","end":"2011-07-31","val":0.01,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011Q2"},{"start":"2011-08-01","end":"2011-10-31","val":0.06,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011Q3"},{"start":"2011-05-01","end":"2012-01-31","val":0.14,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-11-01","end":"2012-01-31","val":0.07,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011Q4"},{"start":"2011-11-01","end":"2012-01-31","val":0.07,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-04-30","val":0.2,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-02-01","end":"2012-04-30","val":0.06,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1"},{"start":"2012-05-01","end":"2012-07-31","val":0.05,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-10-31","val":0.09,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-08-01","end":"2012-10-31","val":0.04,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2012Q3"},{"start":"2012-08-01","end":"2012-10-31","val":0.04,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"start":"2012-05-01","end":"2013-01-31","val":0.14,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-11-01","end":"2013-01-31","val":0.05,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q4"},{"start":"2012-11-01","end":"2013-01-31","val":0.05,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":0.1,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-02-01","end":"2013-04-30","val":-0.04,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1"},{"start":"2013-05-01","end":"2013-10-31","val":0.03,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2013-08-01","end":"2013-10-31","val":0.04,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3"}]}},"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":"2010-05-01","end":"2011-04-30","val":0.742,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":0.259,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":0.498,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"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":"2010-05-01","end":"2011-04-30","val":0.34,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":0.34,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":0.34,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"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":"2010-05-01","end":"2011-04-30","val":0.051,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":-0.039,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":-0.017,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"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":"2010-05-01","end":"2011-04-30","val":-0.003,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":-0.029,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":-0.008,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"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":"2010-05-01","end":"2011-04-30","val":0.045,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":0.008,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":0.009,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"EffectiveIncomeTaxRateReconciliationOtherAdjustments":{"label":"Effective Income Tax Rate Reconciliation, Other Adjustments, 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 other adjustments.","units":{"pure":[{"start":"2010-05-01","end":"2011-04-30","val":0.012,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":0.012,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":-0.006,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes":{"label":"Effective Income Tax Rate Reconciliation, Prior Year 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 attributable to revisions of previously reported income tax expense.","units":{"pure":[{"start":"2010-05-01","end":"2011-04-30","val":0.07,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":-0.032,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":0.06,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"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":"2010-05-01","end":"2011-04-30","val":0,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":0.022,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":-0.004,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"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":"2010-05-01","end":"2011-04-30","val":0.047,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":0.003,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":0.021,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"EffectiveIncomeTaxRateReconciliationTaxCredits":{"label":"Effective Income Tax Rate Reconciliation, Tax Credit, 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 tax credits. Including, but not limited to, research credit, foreign tax credit, investment tax credit, and other tax credits.","units":{"pure":[{"start":"2010-05-01","end":"2011-04-30","val":-0.008,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":0,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":0,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"EffectiveIncomeTaxRateReconciliationTaxCreditsForeign":{"label":"Effective Income Tax Rate Reconciliation, Tax Credit, Foreign, 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 foreign tax credit.","units":{"pure":[{"start":"2010-05-01","end":"2011-04-30","val":0.014,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":0.01,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":0.022,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"EffectiveIncomeTaxRateReconciliationTaxExemptIncome":{"label":"Effective Income Tax Rate Reconciliation, Tax Exempt Income, 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 (loss) exempt from income taxes.","units":{"pure":[{"start":"2010-05-01","end":"2011-04-30","val":0.174,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":0.072,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":0.081,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"EffectiveIncomeTaxRateReconciliationTaxSettlements":{"label":"Effective Income Tax Rate Reconciliation, Tax Settlement, 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 settlements. Including, but not limited to, domestic tax settlement, foreign tax settlement, state and local tax settlement, and other tax settlements.","units":{"pure":[{"start":"2010-05-01","end":"2011-04-30","val":0,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":-0.108,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":0,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"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":"2008-05-01","end":"2009-04-30","val":-109000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":-162000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":-706000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":-1190000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":-220000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":-220000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":214000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":214000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":45000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":45000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-05-01","end":"2011-01-31","val":238000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":238000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-05-01","end":"2011-04-30","val":-851000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":-851000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":-851000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":-300000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":-300000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":-230000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":-230000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":78000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":78000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":948000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":948000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":214000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":214000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":191000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":191000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":-86000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":-429000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":41000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":592000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"}]}},"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":"2010-04-30","val":5938000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010Q1I"},{"end":"2010-04-30","val":5938000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2010-04-30","val":5938000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2010-04-30","val":5938000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2010-07-31","val":5960000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2010Q2I"},{"end":"2010-10-31","val":6887000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2010Q3I"},{"end":"2011-01-31","val":6573000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2010Q4I"},{"end":"2011-04-30","val":7080000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2011-04-30","val":7080000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2011-04-30","val":7080000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011Q1I"},{"end":"2011-04-30","val":7080000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2011-04-30","val":7080000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2011-07-31","val":6984000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2011Q2I"},{"end":"2011-10-31","val":7401000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2011Q3I"},{"end":"2012-01-31","val":6459000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2011Q4I"},{"end":"2012-04-30","val":7774000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":7774000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":7774000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":7774000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-04-30","val":7774000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2012-07-31","val":6176000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2012-10-31","val":7081000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":6563000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":7078000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":7078000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10"},{"end":"2013-04-30","val":7078000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2013-07-31","val":5883000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2013-10-31","val":7108000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"EntityWideDisclosureOnGeographicAreasRevenueFromExternalCustomersAttributedToForeignCountries":{"label":"Disclosure on Geographic Areas, Revenue from External Customers Attributed to Foreign Countries (Deprecated 2013-01-31)","description":"Revenues from external customers attributed to all foreign countries in total from which the entity derives revenues.","units":{"USD":[{"start":"2010-05-01","end":"2011-04-30","val":25500000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":27200000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":30700000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"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":"2012-04-30","val":2729000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2013-04-30","val":3189000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1I"}]}},"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":"2013-04-30","val":600000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1I"}]}},"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":"2013-04-30","val":600000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1I"}]}},"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":"2013-04-30","val":600000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1I"}]}},"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":"2013-04-30","val":600000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1I"}]}},"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":"2013-04-30","val":600000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1I"}]}},"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":"2012-04-30","val":3802000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2013-04-30","val":3921000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1I"}]}},"FiniteLivedPatentsGross":{"label":"Finite-Lived Patents, Gross","description":"Gross carrying amount before accumulated amortization as of the balance sheet date of the costs pertaining to the exclusive legal rights granted to the owner of the patent to exploit an invention or a process for a period of time specified by law. Such costs may have been expended to directly apply and receive patent rights, or to acquire such rights.","units":{"USD":[{"end":"2012-04-30","val":6531000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2013-04-30","val":7110000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1I"}]}},"ForeignCurrencyTransactionGainLossRealized":{"label":"Foreign Currency Transaction Gain (Loss), Realized","description":"Amount before tax of foreign currency transaction realized gain (loss) recognized in the income statement.","units":{"USD":[{"start":"2010-05-01","end":"2011-04-30","val":177000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2011-05-01","end":"2011-07-31","val":255000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":347000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-08-01","end":"2011-10-31","val":92000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2011Q3"},{"start":"2011-05-01","end":"2012-01-31","val":-109000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-11-01","end":"2012-01-31","val":-456000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2011Q4"},{"start":"2011-05-01","end":"2012-04-30","val":-249000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2012-07-31","val":-369000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":-369000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":-240000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":-240000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-08-01","end":"2012-10-31","val":129000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2012Q3"},{"start":"2012-08-01","end":"2012-10-31","val":129000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":-216000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-11-01","end":"2013-01-31","val":24000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4"},{"start":"2012-05-01","end":"2013-04-30","val":-462000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":-159000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":-203000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2013-08-01","end":"2013-10-31","val":-44000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3"}]}},"ForeignCurrencyTransactionGainLossUnrealized":{"label":"Foreign Currency Transaction Gain (Loss), Unrealized","description":"Amount before tax of foreign currency transaction unrealized gain (loss) recognized in the income statement.","units":{"USD":[{"start":"2008-05-01","end":"2009-04-30","val":-1571000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":457000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":53000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":189000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":66000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":66000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":368000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":368000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":292000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":292000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-05-01","end":"2011-01-31","val":351000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":351000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-05-01","end":"2011-04-30","val":412000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":412000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":412000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":-404000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":-404000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":-483000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":-483000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-08-01","end":"2011-10-31","val":-79000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2011Q3"},{"start":"2011-05-01","end":"2012-01-31","val":-367000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":-367000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-11-01","end":"2012-01-31","val":116000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2011Q4"},{"start":"2011-05-01","end":"2012-04-30","val":-587000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":-587000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":100000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":100000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":-112000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":-112000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-08-01","end":"2012-10-31","val":-212000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2012Q3"},{"start":"2012-08-01","end":"2012-10-31","val":-212000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":-332000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-11-01","end":"2013-01-31","val":-220000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4"},{"start":"2012-05-01","end":"2013-04-30","val":-448000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":-1332000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":-973000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2013-08-01","end":"2013-10-31","val":359000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3"}]}},"GeneralAndAdministrativeExpense":{"label":"General and Administrative Expense","description":"The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.","units":{"USD":[{"start":"2008-05-01","end":"2009-04-30","val":29506000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":7122000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":13193000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-08-01","end":"2009-10-31","val":6071000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2009Q3"},{"start":"2009-05-01","end":"2010-01-31","val":19391000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-11-01","end":"2010-01-31","val":6198000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2009Q4"},{"start":"2009-05-01","end":"2010-04-30","val":25182000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":25182000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":5958000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":5958000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":11617000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":11617000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-08-01","end":"2010-10-31","val":5659000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-08-01","end":"2010-10-31","val":5659000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2010Q3"},{"start":"2010-05-01","end":"2011-01-31","val":17811000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":17811000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-11-01","end":"2011-01-31","val":6194000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-11-01","end":"2011-01-31","val":6194000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2010Q4"},{"start":"2010-05-01","end":"2011-04-30","val":24141000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":24141000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":24141000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":6609000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":6609000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":11970000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":11970000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-08-01","end":"2011-10-31","val":5361000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2011Q3"},{"start":"2011-08-01","end":"2011-10-31","val":5361000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":17312000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":17312000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-11-01","end":"2012-01-31","val":5342000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2011Q4"},{"start":"2011-11-01","end":"2012-01-31","val":5342000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":24382000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":24382000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":5869000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":5869000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":11599000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":11599000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-08-01","end":"2012-10-31","val":5730000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2012Q3"},{"start":"2012-08-01","end":"2012-10-31","val":5730000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":17417000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-11-01","end":"2013-01-31","val":5818000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4"},{"start":"2012-05-01","end":"2013-04-30","val":23573000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":5331000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":11261000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2013-08-01","end":"2013-10-31","val":5930000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3"}]}},"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":"2008-05-01","end":"2009-04-30","val":2764000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2010-04-30","val":0,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2009"},{"start":"2010-05-01","end":"2011-04-30","val":0,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010"}]}},"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":"2008-05-01","end":"2009-04-30","val":88328000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":13976000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":30608000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-08-01","end":"2009-10-31","val":16632000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2009Q3"},{"start":"2009-05-01","end":"2010-01-31","val":48831000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-11-01","end":"2010-01-31","val":18223000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2009Q4"},{"start":"2009-05-01","end":"2010-04-30","val":67767000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":67767000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":19333000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":19333000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":39186000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":39186000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-08-01","end":"2010-10-31","val":19853000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-08-01","end":"2010-10-31","val":19853000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2010Q3"},{"start":"2010-05-01","end":"2011-01-31","val":62278000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":62278000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-11-01","end":"2011-01-31","val":23092000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-11-01","end":"2011-01-31","val":23092000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2010Q4"},{"start":"2010-05-01","end":"2011-04-30","val":84461000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":84461000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":84461000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":23120000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":23120000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-07-31","val":23120000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2011-05-01","end":"2011-10-31","val":48436000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":48436000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-08-01","end":"2011-10-31","val":25316000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011Q3"},{"start":"2011-08-01","end":"2011-10-31","val":25316000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-08-01","end":"2011-10-31","val":25316000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":74507000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":74507000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-11-01","end":"2012-01-31","val":26071000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011Q4"},{"start":"2011-11-01","end":"2012-01-31","val":26071000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-11-01","end":"2012-01-31","val":26071000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":99368000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":99368000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-02-01","end":"2012-04-30","val":24861000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1"},{"start":"2012-05-01","end":"2012-07-31","val":24793000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":24793000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"start":"2012-05-01","end":"2012-07-31","val":24793000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":50213000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":50213000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-08-01","end":"2012-10-31","val":25420000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2012Q3"},{"start":"2012-08-01","end":"2012-10-31","val":25420000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"start":"2012-08-01","end":"2012-10-31","val":25420000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":76866000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-11-01","end":"2013-01-31","val":26653000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q4"},{"start":"2012-11-01","end":"2013-01-31","val":26653000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":97922000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-02-01","end":"2013-04-30","val":21056000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1"},{"start":"2013-05-01","end":"2013-07-31","val":21609000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":47352000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2013-08-01","end":"2013-10-31","val":25743000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3"}]}},"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":"2012-05-01","end":"2012-07-31","val":0,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":0,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":0,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-08-01","end":"2012-10-31","val":0,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3"},{"start":"2012-05-01","end":"2013-01-31","val":0,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-11-01","end":"2013-01-31","val":0,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4"},{"start":"2013-05-01","end":"2013-07-31","val":0,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":0,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2013-08-01","end":"2013-10-31","val":0,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3"}]}},"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":"2010-05-01","end":"2011-04-30","val":-2419000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":1762000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":7085000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"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":"2010-05-01","end":"2011-04-30","val":6322000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":10903000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":3216000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments":{"label":"Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest","description":"Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments.","units":{"USD":[{"start":"2008-05-01","end":"2009-04-30","val":-31316000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":-8004000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":-8238000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-08-01","end":"2009-10-31","val":-234000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2009Q3"},{"start":"2009-05-01","end":"2010-01-31","val":-10160000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-11-01","end":"2010-01-31","val":-1922000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2009Q4"},{"start":"2009-05-01","end":"2010-04-30","val":-10233000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":-10233000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":533000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":533000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":1117000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":1117000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-08-01","end":"2010-10-31","val":584000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-08-01","end":"2010-10-31","val":584000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2010Q3"},{"start":"2010-05-01","end":"2011-01-31","val":3456000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":3456000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-11-01","end":"2011-01-31","val":2339000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-11-01","end":"2011-01-31","val":2339000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2010Q4"},{"start":"2010-05-01","end":"2011-04-30","val":3903000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":3903000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":3903000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":754000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":754000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":5623000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":5623000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-08-01","end":"2011-10-31","val":4869000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2011Q3"},{"start":"2011-08-01","end":"2011-10-31","val":4869000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":10923000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":10923000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-11-01","end":"2012-01-31","val":5300000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2011Q4"},{"start":"2011-11-01","end":"2012-01-31","val":5300000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":12665000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":12665000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":3684000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":3684000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":7211000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":7211000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-08-01","end":"2012-10-31","val":3527000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2012Q3"},{"start":"2012-08-01","end":"2012-10-31","val":3527000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":11457000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-11-01","end":"2013-01-31","val":4246000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4"},{"start":"2012-05-01","end":"2013-04-30","val":10301000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":-956000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":3307000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2013-08-01","end":"2013-10-31","val":4263000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3"}]}},"IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest":{"label":"Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest","description":"Amount after tax of income (loss) from continuing operations including portion attributable to the noncontrolling interest.","units":{"USD":[{"start":"2008-05-01","end":"2009-04-30","val":-23086000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":-7398000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":-6709000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-08-01","end":"2009-10-31","val":689000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2009Q3"},{"start":"2009-05-01","end":"2010-01-31","val":-7507000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-11-01","end":"2010-01-31","val":-798000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2009Q4"},{"start":"2009-05-01","end":"2010-04-30","val":-7389000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":-7389000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":-531000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":-531000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":-751000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":-751000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-08-01","end":"2010-10-31","val":-220000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-08-01","end":"2010-10-31","val":-220000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2010Q3"},{"start":"2010-05-01","end":"2011-01-31","val":530000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":530000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-11-01","end":"2011-01-31","val":1281000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-11-01","end":"2011-01-31","val":1281000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2010Q4"},{"start":"2010-05-01","end":"2011-04-30","val":1008000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":1008000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":1008000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":654000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":654000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-07-31","val":654000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2011-05-01","end":"2011-10-31","val":3385000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":3385000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-08-01","end":"2011-10-31","val":2731000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011Q3"},{"start":"2011-08-01","end":"2011-10-31","val":2731000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-08-01","end":"2011-10-31","val":2731000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":6644000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":6644000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-11-01","end":"2012-01-31","val":3259000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011Q4"},{"start":"2011-11-01","end":"2012-01-31","val":3259000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-11-01","end":"2012-01-31","val":3259000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":9389000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":9389000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-02-01","end":"2012-04-30","val":2745000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1"},{"start":"2012-05-01","end":"2012-07-31","val":2207000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":2207000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"start":"2012-05-01","end":"2012-07-31","val":2207000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":4382000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":4382000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-08-01","end":"2012-10-31","val":2175000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2012Q3"},{"start":"2012-08-01","end":"2012-10-31","val":2175000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"start":"2012-08-01","end":"2012-10-31","val":2175000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":7077000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-11-01","end":"2013-01-31","val":2695000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q4"},{"start":"2012-11-01","end":"2013-01-31","val":2695000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":5172000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-02-01","end":"2013-04-30","val":-1905000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1"},{"start":"2013-05-01","end":"2013-07-31","val":-835000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":1472000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2013-08-01","end":"2013-10-31","val":2307000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3"}]}},"IncomeLossFromContinuingOperationsPerBasicAndDilutedShare":{"label":"Income (Loss) from Continuing Operations, Per Basic and Diluted Share","description":"The amount of net income (loss) from continuing operations per each basic and diluted share of common stock or unit when the per share amount is the same for both basic and diluted shares.","units":{"USD/shares":[{"start":"2009-05-01","end":"2010-04-30","val":-0.17,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2011-01-31","val":0.01,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-11-01","end":"2011-01-31","val":0.03,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2010Q4"},{"start":"2010-05-01","end":"2011-04-30","val":0.02,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":0.02,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":0.01,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":0.07,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-08-01","end":"2011-10-31","val":0.06,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2011Q3"},{"start":"2011-05-01","end":"2012-01-31","val":0.14,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-11-01","end":"2012-01-31","val":0.07,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2011Q4"},{"start":"2011-05-01","end":"2012-04-30","val":0.2,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":0.2,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":0.05,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":0.05,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":0.09,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-08-01","end":"2012-10-31","val":0.04,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3"},{"start":"2012-05-01","end":"2013-04-30","val":0.11,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":-0.02,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"}]}},"IncomeLossFromContinuingOperationsPerBasicShare":{"label":"Income (Loss) from Continuing Operations, Per Basic Share","description":"The amount of net income (loss) from continuing operations per each share of common stock or unit outstanding during the reporting period.","units":{"USD/shares":[{"start":"2011-05-01","end":"2011-07-31","val":0.01,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011Q2"},{"start":"2011-08-01","end":"2011-10-31","val":0.06,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011Q3"},{"start":"2011-05-01","end":"2012-01-31","val":0.14,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-11-01","end":"2012-01-31","val":0.07,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011Q4"},{"start":"2011-11-01","end":"2012-01-31","val":0.07,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-04-30","val":0.2,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-02-01","end":"2012-04-30","val":0.06,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1"},{"start":"2012-05-01","end":"2012-07-31","val":0.05,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-10-31","val":0.09,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-08-01","end":"2012-10-31","val":0.04,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2012Q3"},{"start":"2012-08-01","end":"2012-10-31","val":0.04,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"start":"2012-05-01","end":"2013-01-31","val":0.15,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-11-01","end":"2013-01-31","val":0.06,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q4"},{"start":"2012-11-01","end":"2013-01-31","val":0.06,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":0.11,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-02-01","end":"2013-04-30","val":-0.04,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1"},{"start":"2013-05-01","end":"2013-10-31","val":0.03,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2013-08-01","end":"2013-10-31","val":0.05,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3"}]}},"IncomeLossFromContinuingOperationsPerDilutedShare":{"label":"Income (Loss) from Continuing Operations, Per Diluted Share","description":"The amount of net income (loss) derived from continuing operations during 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":"2011-05-01","end":"2011-07-31","val":0.01,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011Q2"},{"start":"2011-08-01","end":"2011-10-31","val":0.06,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011Q3"},{"start":"2011-05-01","end":"2012-01-31","val":0.14,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-11-01","end":"2012-01-31","val":0.07,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011Q4"},{"start":"2011-11-01","end":"2012-01-31","val":0.07,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-04-30","val":0.2,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-02-01","end":"2012-04-30","val":0.06,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1"},{"start":"2012-05-01","end":"2012-07-31","val":0.05,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-10-31","val":0.09,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-08-01","end":"2012-10-31","val":0.04,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2012Q3"},{"start":"2012-08-01","end":"2012-10-31","val":0.04,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"start":"2012-05-01","end":"2013-01-31","val":0.14,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-11-01","end":"2013-01-31","val":0.05,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q4"},{"start":"2012-11-01","end":"2013-01-31","val":0.05,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":0.11,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-02-01","end":"2013-04-30","val":-0.04,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1"},{"start":"2013-05-01","end":"2013-10-31","val":0.03,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2013-08-01","end":"2013-10-31","val":0.05,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3"}]}},"IncomeLossFromDiscontinuedOperationsNetOfTax":{"label":"Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest","description":"Amount after tax of income (loss) from a discontinued operation including the portion attributable to the noncontrolling interest. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.","units":{"USD":[{"start":"2008-05-01","end":"2009-04-30","val":-733000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":-1148000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":-1140000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-08-01","end":"2009-10-31","val":8000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2009Q3"},{"start":"2009-05-01","end":"2010-01-31","val":-1089000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-11-01","end":"2010-01-31","val":51000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2009Q4"},{"start":"2009-05-01","end":"2010-04-30","val":-1095000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":-1095000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":-9000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":-9000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":-112000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":-112000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-08-01","end":"2010-10-31","val":-103000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-08-01","end":"2010-10-31","val":-103000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2010Q3"},{"start":"2010-05-01","end":"2011-01-31","val":-152000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":-152000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-11-01","end":"2011-01-31","val":-40000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-11-01","end":"2011-01-31","val":-40000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2010Q4"},{"start":"2010-05-01","end":"2011-04-30","val":-242000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":-242000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":-242000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":57000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":57000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":105000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":105000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-08-01","end":"2011-10-31","val":48000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2011Q3"},{"start":"2011-08-01","end":"2011-10-31","val":48000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":162000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":162000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-11-01","end":"2012-01-31","val":57000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2011Q4"},{"start":"2011-11-01","end":"2012-01-31","val":57000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":60000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":60000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":14000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":14000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":-51000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":-51000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-08-01","end":"2012-10-31","val":-65000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2012Q3"},{"start":"2012-08-01","end":"2012-10-31","val":-65000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":-135000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-11-01","end":"2013-01-31","val":-84000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4"},{"start":"2012-05-01","end":"2013-04-30","val":-135000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":-10000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":-227000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2013-08-01","end":"2013-10-31","val":-217000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3"}]}},"IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare":{"label":"Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic and Diluted Share","description":"Per basic and diluted share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation, when the per share amount is the same.","units":{"USD/shares":[{"start":"2009-05-01","end":"2010-04-30","val":-0.02,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2011-01-31","val":0,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-11-01","end":"2011-01-31","val":0,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2010Q4"},{"start":"2010-05-01","end":"2011-04-30","val":0,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":0,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":0,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":0,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-08-01","end":"2011-10-31","val":0,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2011Q3"},{"start":"2011-05-01","end":"2012-01-31","val":0,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-11-01","end":"2012-01-31","val":0,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2011Q4"},{"start":"2011-05-01","end":"2012-04-30","val":0,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":0,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":0,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":0,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":0,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-08-01","end":"2012-10-31","val":0,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3"},{"start":"2012-05-01","end":"2013-04-30","val":-0.01,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":0,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"}]}},"IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare":{"label":"Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share","description":"Per basic share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation.","units":{"USD/shares":[{"start":"2011-05-01","end":"2012-01-31","val":0,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-11-01","end":"2012-01-31","val":0,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2011Q4"},{"start":"2012-05-01","end":"2012-10-31","val":0,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-08-01","end":"2012-10-31","val":0,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2012Q3"},{"start":"2012-05-01","end":"2013-01-31","val":-0.01,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-11-01","end":"2013-01-31","val":-0.01,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4"},{"start":"2013-05-01","end":"2013-10-31","val":0,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2013-08-01","end":"2013-10-31","val":-0.01,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3"}]}},"IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare":{"label":"Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share","description":"Per diluted share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation.","units":{"USD/shares":[{"start":"2011-05-01","end":"2012-01-31","val":0,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-11-01","end":"2012-01-31","val":0,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2011Q4"},{"start":"2012-05-01","end":"2012-10-31","val":0,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-08-01","end":"2012-10-31","val":0,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2012Q3"},{"start":"2012-05-01","end":"2013-01-31","val":0,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-11-01","end":"2013-01-31","val":0,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4"},{"start":"2013-05-01","end":"2013-10-31","val":0,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2013-08-01","end":"2013-10-31","val":-0.01,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3"}]}},"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":"2008-05-01","end":"2009-04-30","val":-8230000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":-606000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":-1529000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-08-01","end":"2009-10-31","val":-923000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2009Q3"},{"start":"2009-05-01","end":"2010-01-31","val":-2653000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-11-01","end":"2010-01-31","val":-1124000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2009Q4"},{"start":"2009-05-01","end":"2010-04-30","val":-2844000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":-2844000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":1064000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":1064000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":1868000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":1868000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-08-01","end":"2010-10-31","val":804000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-08-01","end":"2010-10-31","val":804000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2010Q3"},{"start":"2010-05-01","end":"2011-01-31","val":2926000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":2926000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-11-01","end":"2011-01-31","val":1058000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-11-01","end":"2011-01-31","val":1058000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2010Q4"},{"start":"2010-05-01","end":"2011-04-30","val":2895000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":2895000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":2895000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":100000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":100000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":2238000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":2238000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-08-01","end":"2011-10-31","val":2138000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2011Q3"},{"start":"2011-08-01","end":"2011-10-31","val":2138000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":4279000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":4279000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-11-01","end":"2012-01-31","val":2041000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2011Q4"},{"start":"2011-11-01","end":"2012-01-31","val":2041000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":3276000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":3276000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":1477000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":1477000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":2829000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":2829000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-08-01","end":"2012-10-31","val":1352000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2012Q3"},{"start":"2012-08-01","end":"2012-10-31","val":1352000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":4380000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-11-01","end":"2013-01-31","val":1551000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4"},{"start":"2012-05-01","end":"2013-04-30","val":5129000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":-121000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":1835000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2013-08-01","end":"2013-10-31","val":1956000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3"}]}},"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":"2008-05-01","end":"2009-04-30","val":2557000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":487000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":503000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":755000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":1160000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":1160000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":382000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":382000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":411000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":411000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-05-01","end":"2011-01-31","val":476000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":476000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-05-01","end":"2011-04-30","val":950000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":950000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":950000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":378000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":378000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":931000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":931000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":588000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":588000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":1252000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":1252000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":1408000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":1408000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":1581000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":1581000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":2055000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":2381000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":564000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":718000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"}]}},"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":"2008-05-01","end":"2009-04-30","val":-10494000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":-3590000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":-5887000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":6735000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":6816000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":6816000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":-388000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":388000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":383000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":-383000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-05-01","end":"2011-01-31","val":348000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":348000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-05-01","end":"2011-04-30","val":2088000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":2088000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":2088000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":-136000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":-136000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":2164000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":2164000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":-738000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":-738000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":4672000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":4672000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":29000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":29000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":553000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":553000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":-2835000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":-4891000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":22000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":4125000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"}]}},"IncreaseDecreaseInDeferredRevenueAndCustomerAdvancesAndDeposits":{"label":"Increase (Decrease) in Deferred Revenue and Customer Advances and Deposits","description":"The increase (decrease) during the reporting period in the amount of (a) prepayments by customers for goods or services to be provided at a later date, (b) the amount of customer money held in customer accounts, including security deposits, collateral for current or future transactions, initial payment of the cost of an acquisition or for the right to enter into a contract or agreement, (c) the increase (decrease) during the reporting period, excluding the portion taken into income, in the liability reflecting services yet to be performed by the reporting entity for which cash or other forms of consideration was received or recorded as a receivable, or (d) some combination of (a), (b), and (c).","units":{"USD":[{"start":"2010-05-01","end":"2011-01-31","val":2406000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2011-07-31","val":-2141000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":-68000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2012-01-31","val":1328000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":1328000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2012-05-01","end":"2012-07-31","val":-3213000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":-3213000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":-2571000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":-2571000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":-2931000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2013-05-01","end":"2013-07-31","val":1317000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":1557000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"}]}},"IncreaseDecreaseInEmployeeRelatedLiabilities":{"label":"Increase (Decrease) in Employee Related Liabilities","description":"The increase (decrease) during the reporting period in the aggregate amount of obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits.","units":{"USD":[{"start":"2008-05-01","end":"2009-04-30","val":-2655000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":-903000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":-523000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":-513000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":389000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":389000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":-73000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":-73000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":696000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":696000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-05-01","end":"2011-01-31","val":382000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":382000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-05-01","end":"2011-04-30","val":694000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":694000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":694000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":128000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":128000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":141000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":141000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":-733000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":-733000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":609000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":609000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":-1689000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":-1689000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":-1017000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":-1017000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":-1401000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":-1097000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":-1776000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":-620000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"}]}},"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":"2008-05-01","end":"2009-04-30","val":-5044000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":1895000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":2767000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":100000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":1702000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":1702000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":2395000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":-2395000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":-4478000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":4478000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-05-01","end":"2011-01-31","val":5990000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":5990000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-05-01","end":"2011-04-30","val":6392000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":6392000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":6392000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":3367000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":3367000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":5865000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":5865000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":7129000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":7129000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":13368000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":13368000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":1283000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":1283000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":2607000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":2607000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":1500000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":2373000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":1863000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":2286000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"}]}},"IncreaseDecreaseInOtherOperatingAssets":{"label":"Increase (Decrease) in Other Operating Assets","description":"Amount of increase (decrease) in operating assets classified as other.","units":{"USD":[{"start":"2008-05-01","end":"2009-04-30","val":316000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":-669000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":163000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":1416000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":1713000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":1713000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":-415000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":415000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":702000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":-702000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-05-01","end":"2011-01-31","val":402000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":402000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-05-01","end":"2011-04-30","val":2485000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":2485000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":2485000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":-277000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":-277000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":-136000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":-136000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":944000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":944000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":1246000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":1246000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":1138000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":1138000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":340000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":340000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":1400000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":1001000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":-622000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":-1411000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"}]}},"IncreaseDecreaseInOtherOperatingLiabilities":{"label":"Increase (Decrease) in Other Operating Liabilities","description":"Amount of increase (decrease) in operating liabilities classified as other.","units":{"USD":[{"start":"2008-05-01","end":"2009-04-30","val":-4579000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":-267000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":3674000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":-4828000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":-5071000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":-5071000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":-1078000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":1078000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":876000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":-876000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-05-01","end":"2011-01-31","val":-266000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":-266000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-05-01","end":"2011-04-30","val":-393000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":-393000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":-393000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":-1545000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":-1545000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":-1195000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":-1195000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":-1062000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":-1062000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":-3881000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":-3881000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":-873000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":-873000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":-2038000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":-2038000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":-3106000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":-3923000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":1399000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":407000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"}]}},"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":"2008-05-01","end":"2009-04-30","val":1392000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":1584000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":-5973000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":4303000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":3547000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":3547000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":-653000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":653000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":-4245000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":4245000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-05-01","end":"2011-01-31","val":3902000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":3902000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-05-01","end":"2011-04-30","val":10051000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":10051000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":10051000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":-3919000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":-3919000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":1784000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":1784000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":1883000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":1883000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":2071000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":2071000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":1699000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":1699000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":1693000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":1693000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":7067000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":-2709000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":4790000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":7686000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"}]}},"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":"2008-05-01","end":"2009-04-30","val":78000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":303000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":94000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":422000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":403000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":403000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":116000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":116000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":24000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":24000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-05-01","end":"2011-01-31","val":1663000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":1663000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-05-01","end":"2011-04-30","val":959000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":959000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":959000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":-309000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":-309000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":-232000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":-232000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":-502000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":-502000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":-185000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":-185000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":-966000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":-966000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":-527000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":-527000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":-1317000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":-1400000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-10-31","val":0,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"}]}},"IncrementalCommonSharesAttributableToShareBasedPaymentArrangements":{"label":"Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements","description":"Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.","units":{"shares":[{"start":"2011-05-01","end":"2011-07-31","val":9000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":0,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-08-01","end":"2011-10-31","val":0,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2011Q3"},{"start":"2011-05-01","end":"2012-01-31","val":0,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-11-01","end":"2012-01-31","val":0,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2011Q4"},{"start":"2012-05-01","end":"2012-07-31","val":0,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":0,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":738000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":738000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-08-01","end":"2012-10-31","val":536000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2012Q3"},{"start":"2012-08-01","end":"2012-10-31","val":536000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":780000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-11-01","end":"2013-01-31","val":728000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4"},{"start":"2013-05-01","end":"2013-07-31","val":0,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":363000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2013-08-01","end":"2013-10-31","val":326000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3"}]}},"IndefiniteLivedTrademarks":{"label":"Indefinite-Lived Trademarks","description":"Carrying amount (original costs adjusted for previously recognized amortization and impairment) as of the balance sheet date for the rights acquired through registration of a trademark to gain or protect exclusive use of a business name, symbol or other device or style for a projected indefinite period of benefit.","units":{"USD":[{"end":"2012-04-30","val":1134000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2013-04-30","val":1199000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1I"}]}},"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":"2010-04-30","val":4504000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010Q1I"},{"end":"2010-04-30","val":4504000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2010-04-30","val":4504000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2010-04-30","val":4504000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2010-07-31","val":4587000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2010Q2I"},{"end":"2010-10-31","val":4708000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2010Q3I"},{"end":"2011-01-31","val":4717000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2010Q4I"},{"end":"2011-04-30","val":4738000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2011-04-30","val":4738000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2011-04-30","val":4738000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011Q1I"},{"end":"2011-04-30","val":4738000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2011-04-30","val":4738000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2011-07-31","val":4764000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2011Q2I"},{"end":"2011-10-31","val":4909000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2011Q3I"},{"end":"2012-01-31","val":4914000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2011Q4I"},{"end":"2012-04-30","val":4936000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":4936000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":4936000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":4936000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-04-30","val":4936000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2012-07-31","val":4937000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2012-10-31","val":4998000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":5067000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":5120000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":5120000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10"},{"end":"2013-04-30","val":5120000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2013-07-31","val":5147000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2013-10-31","val":5147000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"InterestExpense":{"label":"Interest Expense","description":"Amount of the cost of borrowed funds accounted for as interest expense.","units":{"USD":[{"start":"2008-05-01","end":"2009-04-30","val":1562000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":964000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":1438000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-08-01","end":"2009-10-31","val":474000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2009Q3"},{"start":"2009-05-01","end":"2010-01-31","val":1906000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-11-01","end":"2010-01-31","val":468000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2009Q4"},{"start":"2009-05-01","end":"2010-04-30","val":2374000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":2374000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":413000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":413000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":850000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":850000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-08-01","end":"2010-10-31","val":437000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-08-01","end":"2010-10-31","val":437000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2010Q3"},{"start":"2010-05-01","end":"2011-01-31","val":1268000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":1268000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-11-01","end":"2011-01-31","val":418000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-11-01","end":"2011-01-31","val":418000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2010Q4"},{"start":"2010-05-01","end":"2011-04-30","val":1776000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":1776000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":1776000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":311000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":311000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":620000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":620000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-08-01","end":"2011-10-31","val":309000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2011Q3"},{"start":"2011-08-01","end":"2011-10-31","val":309000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":937000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":937000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-11-01","end":"2012-01-31","val":317000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2011Q4"},{"start":"2011-11-01","end":"2012-01-31","val":317000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":1112000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":1112000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":340000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":340000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":665000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":665000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-08-01","end":"2012-10-31","val":325000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2012Q3"},{"start":"2012-08-01","end":"2012-10-31","val":325000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":962000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-11-01","end":"2013-01-31","val":297000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4"},{"start":"2012-05-01","end":"2013-04-30","val":1573000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":384000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":522000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2013-08-01","end":"2013-10-31","val":138000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3"}]}},"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":"2008-05-01","end":"2009-04-30","val":1419000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":674000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":860000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":920000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":1142000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":1142000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":83000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":83000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":186000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":186000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-05-01","end":"2011-01-31","val":288000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":288000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-05-01","end":"2011-04-30","val":403000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":403000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":403000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":132000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":132000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":215000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":215000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":261000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":261000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":300000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":300000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":80000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":80000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":130000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":130000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":159000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":196000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":57000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":183000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"}]}},"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":"2012-04-30","val":10509000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":10509000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":10509000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":10509000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-07-31","val":9647000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2012-10-31","val":9786000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":11174000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":12285000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":12285000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10"},{"end":"2013-04-30","val":12285000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2013-07-31","val":12229000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2013-10-31","val":12682000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"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":"2010-04-30","val":22503000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010Q1I"},{"end":"2010-04-30","val":22503000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2010-04-30","val":22503000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2010-04-30","val":22503000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2010-07-31","val":24642000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2010Q2I"},{"end":"2010-10-31","val":27213000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2010Q3I"},{"end":"2011-01-31","val":28709000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2010Q4I"},{"end":"2011-04-30","val":28609000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2011-04-30","val":28609000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2011-04-30","val":28609000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011Q1I"},{"end":"2011-04-30","val":28609000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2011-04-30","val":28609000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2011-07-31","val":31720000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2011Q2I"},{"end":"2011-10-31","val":33376000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2011Q3I"},{"end":"2012-01-31","val":34280000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2011Q4I"},{"end":"2012-04-30","val":40069000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":40069000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":40069000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":40069000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-04-30","val":40069000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2012-07-31","val":40219000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2012-10-31","val":41660000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":40138000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":41059000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":41059000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10"},{"end":"2013-04-30","val":41059000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2013-07-31","val":41795000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2013-10-31","val":42568000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"InventoryRawMaterialsAndPurchasedPartsNetOfReserves":{"label":"Inventory, Raw Materials and Purchased Parts, Net of Reserves","description":"Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of items purchased for use as components of a finished product or pieces of machinery and equipment plus any items in their natural and unrefined state. This element may be used when the reporting entity combines raw materials and purchased parts into an aggregate amount.","units":{"USD":[{"end":"2012-04-30","val":26247000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":26247000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":26247000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":26247000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-07-31","val":26722000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2012-10-31","val":28356000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":26258000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":25409000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":25409000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10"},{"end":"2013-04-30","val":25409000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2013-07-31","val":26572000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2013-10-31","val":26110000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"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":"2012-04-30","val":3313000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":3313000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":3313000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":3313000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-07-31","val":3850000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2012-10-31","val":3518000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":2706000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":3365000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":3365000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10"},{"end":"2013-04-30","val":3365000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2013-07-31","val":2994000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2013-10-31","val":3776000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"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":"2008-05-01","end":"2009-04-30","val":675000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":123000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":292000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":432000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":733000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":733000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":102000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":102000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":339000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":339000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-05-01","end":"2011-01-31","val":649000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":649000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-05-01","end":"2011-04-30","val":884000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":884000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":884000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":145000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":145000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":258000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":258000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":391000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":391000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":477000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":477000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":35000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":35000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":128000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":128000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":184000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":224000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":160000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":204000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"}]}},"InvestmentIncomeInterest":{"label":"Investment Income, Interest","description":"Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities.","units":{"USD":[{"start":"2008-05-01","end":"2009-04-30","val":494000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":40000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":93000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-08-01","end":"2009-10-31","val":53000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2009Q3"},{"start":"2009-05-01","end":"2010-01-31","val":132000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-11-01","end":"2010-01-31","val":39000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2009Q4"},{"start":"2009-05-01","end":"2010-04-30","val":252000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":252000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":21000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":21000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":65000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":65000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-08-01","end":"2010-10-31","val":44000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-08-01","end":"2010-10-31","val":44000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2010Q3"},{"start":"2010-05-01","end":"2011-01-31","val":86000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":86000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-11-01","end":"2011-01-31","val":21000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-11-01","end":"2011-01-31","val":21000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2010Q4"},{"start":"2010-05-01","end":"2011-04-30","val":106000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":106000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":106000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":40000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":40000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":49000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":49000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-08-01","end":"2011-10-31","val":9000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2011Q3"},{"start":"2011-08-01","end":"2011-10-31","val":9000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":61000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":61000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-11-01","end":"2012-01-31","val":12000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2011Q4"},{"start":"2011-11-01","end":"2012-01-31","val":12000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":62000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":62000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":55000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":55000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":67000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":67000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-08-01","end":"2012-10-31","val":12000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2012Q3"},{"start":"2012-08-01","end":"2012-10-31","val":12000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":77000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-11-01","end":"2013-01-31","val":10000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4"},{"start":"2012-05-01","end":"2013-04-30","val":224000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":16000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":27000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2013-08-01","end":"2013-10-31","val":11000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3"}]}},"LeaseAndRentalExpense":{"label":"Operating Leases, Rent Expense","description":"Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.","units":{"USD":[{"start":"2010-05-01","end":"2011-04-30","val":3200000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":3100000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":3100000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"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":"2010-04-30","val":55585000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010Q1I"},{"end":"2010-04-30","val":55585000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2010-04-30","val":55585000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2010-04-30","val":55585000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2010-07-31","val":55478000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2010Q2I"},{"end":"2010-10-31","val":61985000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2010Q3I"},{"end":"2011-01-31","val":63271000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2010Q4I"},{"end":"2011-04-30","val":73609000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2011-04-30","val":73609000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2011-04-30","val":73609000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011Q1I"},{"end":"2011-04-30","val":73609000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2011-04-30","val":73609000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2011-07-31","val":69600000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2011Q2I"},{"end":"2011-10-31","val":73138000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2011Q3I"},{"end":"2012-01-31","val":69187000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2011Q4I"},{"end":"2012-04-30","val":76018000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":76018000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":76018000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":76018000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-04-30","val":76018000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2012-07-31","val":72076000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2012-10-31","val":74829000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":71121000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":65359000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":65359000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10"},{"end":"2013-04-30","val":65359000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2013-07-31","val":67850000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2013-10-31","val":66528000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"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":"2010-04-30","val":131209000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010Q1I"},{"end":"2010-04-30","val":131209000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2010-04-30","val":131209000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2010-04-30","val":131209000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2010-07-31","val":130627000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2010Q2I"},{"end":"2010-10-31","val":138264000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2010Q3I"},{"end":"2011-01-31","val":141941000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2010Q4I"},{"end":"2011-04-30","val":153063000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2011-04-30","val":153063000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2011-04-30","val":153063000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011Q1I"},{"end":"2011-04-30","val":153063000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2011-04-30","val":153063000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2011-07-31","val":150045000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2011Q2I"},{"end":"2011-10-31","val":156237000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2011Q3I"},{"end":"2012-01-31","val":155781000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2011Q4I"},{"end":"2012-04-30","val":167066000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":167066000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":167066000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":167066000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-04-30","val":167066000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2012-07-31","val":164306000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2012-10-31","val":170427000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":170055000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":162093000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":162093000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10"},{"end":"2013-04-30","val":162093000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2013-07-31","val":163332000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2013-10-31","val":165840000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"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":"2010-04-30","val":42182000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010Q1I"},{"end":"2010-04-30","val":42182000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2010-04-30","val":42182000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2010-04-30","val":42182000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2010-07-31","val":41935000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2010Q2I"},{"end":"2010-10-31","val":47880000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2010Q3I"},{"end":"2011-01-31","val":48483000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2010Q4I"},{"end":"2011-04-30","val":56961000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2011-04-30","val":56961000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2011-04-30","val":56961000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011Q1I"},{"end":"2011-04-30","val":56961000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2011-04-30","val":56961000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2011-07-31","val":52923000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2011Q2I"},{"end":"2011-10-31","val":56015000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2011Q3I"},{"end":"2012-01-31","val":51693000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2011Q4I"},{"end":"2012-04-30","val":59100000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":59100000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":59100000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":59100000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-04-30","val":59100000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2012-07-31","val":54926000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2012-10-31","val":67293000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":63507000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":57264000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":57264000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10"},{"end":"2013-04-30","val":57264000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2013-07-31","val":59717000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2013-10-31","val":57482000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"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":"2010-04-30","val":61000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010Q1I"},{"end":"2010-04-30","val":61000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2010-04-30","val":61000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2010-04-30","val":61000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2010-07-31","val":47000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2010Q2I"},{"end":"2010-10-31","val":28000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2010Q3I"},{"end":"2011-01-31","val":29000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2010Q4I"},{"end":"2011-04-30","val":25000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2011-04-30","val":25000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2011-04-30","val":25000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011Q1I"},{"end":"2011-04-30","val":25000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2011-04-30","val":25000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2011-07-31","val":20000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2011Q2I"},{"end":"2011-10-31","val":27000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2011Q3I"},{"end":"2012-01-31","val":26000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2011Q4I"},{"end":"2012-04-30","val":0,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":21000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-04-30","val":21000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2012-07-31","val":20000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2013-04-30","val":10559000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1I"}]}},"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":"2010-04-30","val":18000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2010Q1I"},{"end":"2010-07-31","val":11000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2010Q2I"}]}},"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":"2008-05-01","end":"2009-04-30","val":13129000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":-1104000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":-1575000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":42000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":-1670000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":-1670000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":-372000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":-372000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":1665000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":1665000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-05-01","end":"2011-01-31","val":1542000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":1542000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-05-01","end":"2011-04-30","val":5114000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":5114000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":5114000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":-2441000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":-2441000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":-3121000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":-3121000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":-5473000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":-5473000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":-5495000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":-5495000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":0,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":0,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":-2000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":-2000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":-2000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":28000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":-7000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":-8277000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"}]}},"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":"2008-05-01","end":"2009-04-30","val":-25538000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":-4770000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":-3361000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":-4572000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":-5687000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":-5687000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":-796000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":-796000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":-1156000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":-1156000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-05-01","end":"2011-01-31","val":-4332000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":-4332000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-05-01","end":"2011-04-30","val":-4459000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":-4459000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":-4459000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":-284000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":-284000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":-2082000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":-2082000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":-2808000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":-2808000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":-4318000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":-4318000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":-480000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":-480000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":-3244000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":-3244000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":-3396000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":-4963000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":-1526000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":-2343000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"}]}},"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":"2008-05-01","end":"2009-04-30","val":-6464000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":2680000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":565000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":2225000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":3827000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":3827000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":1811000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":1811000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":-29000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":-29000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-05-01","end":"2011-01-31","val":4186000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":4186000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-05-01","end":"2011-04-30","val":2925000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":2925000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":2925000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":1870000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":1870000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":5955000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":5955000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":9292000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":9292000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":12711000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":12711000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":-2077000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":-2077000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":5386000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":5386000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":3081000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":7887000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":-533000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":8880000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"}]}},"NoncurrentAssets":{"label":"Long-Lived Assets","description":"Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.","units":{"USD":[{"end":"2012-04-30","val":51521000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2013-04-30","val":45634000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1I"}]}},"NotesPayableCurrent":{"label":"Notes Payable, Current","description":"Sum of the carrying values as of the balance sheet date of the portions of long-term notes payable due within one year or the operating cycle if longer.","units":{"USD":[{"end":"2010-04-30","val":350000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010Q1I"},{"end":"2010-04-30","val":350000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2010-04-30","val":350000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2010-04-30","val":350000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2010-10-31","val":2050000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2010Q3I"},{"end":"2011-01-31","val":1900000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2010Q4I"},{"end":"2011-04-30","val":5500000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2011-04-30","val":5500000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2011-04-30","val":5500000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011Q1I"},{"end":"2011-04-30","val":5500000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2011-04-30","val":5500000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2011-07-31","val":3100000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2011Q2I"},{"end":"2011-10-31","val":2350000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2011Q3I"},{"end":"2012-01-31","val":0,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2011Q4I"},{"end":"2012-04-30","val":0,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":0,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2012-07-31","val":0,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2013-04-30","val":0,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-10-31","val":2550000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"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":"2008-05-01","end":"2009-04-30","val":117962000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":21558000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":37853000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-08-01","end":"2009-10-31","val":16295000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2009Q3"},{"start":"2009-05-01","end":"2010-01-31","val":56351000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-11-01","end":"2010-01-31","val":18498000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2009Q4"},{"start":"2009-05-01","end":"2010-04-30","val":74767000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":74767000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":18700000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":18700000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":37680000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":37680000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-08-01","end":"2010-10-31","val":18980000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-08-01","end":"2010-10-31","val":18980000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2010Q3"},{"start":"2010-05-01","end":"2011-01-31","val":57955000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":57955000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-11-01","end":"2011-01-31","val":20275000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-11-01","end":"2011-01-31","val":20275000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2010Q4"},{"start":"2010-05-01","end":"2011-04-30","val":79574000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":79574000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":79574000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":21961000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":21961000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":42115000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":42115000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-08-01","end":"2011-10-31","val":20154000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2011Q3"},{"start":"2011-08-01","end":"2011-10-31","val":20154000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":62197000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":62197000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-11-01","end":"2012-01-31","val":20082000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2011Q4"},{"start":"2011-11-01","end":"2012-01-31","val":20082000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":84699000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":84699000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":20559000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":20559000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":42015000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":42015000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-08-01","end":"2012-10-31","val":21456000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2012Q3"},{"start":"2012-08-01","end":"2012-10-31","val":21456000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":63883000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-11-01","end":"2013-01-31","val":21868000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4"},{"start":"2012-05-01","end":"2013-04-30","val":85255000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":20674000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":42365000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2013-08-01","end":"2013-10-31","val":21691000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3"}]}},"OperatingIncomeLoss":{"label":"Operating Income (Loss)","description":"The net result for the period of deducting operating expenses from operating revenues.","units":{"USD":[{"start":"2008-05-01","end":"2009-04-30","val":-29634000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":-7582000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":-7245000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-08-01","end":"2009-10-31","val":337000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2009Q3"},{"start":"2009-05-01","end":"2010-01-31","val":-7520000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-11-01","end":"2010-01-31","val":-275000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2009Q4"},{"start":"2009-05-01","end":"2010-04-30","val":-7000000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":-7000000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":633000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":633000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":1506000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":1506000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-08-01","end":"2010-10-31","val":873000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-08-01","end":"2010-10-31","val":873000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2010Q3"},{"start":"2010-05-01","end":"2011-01-31","val":4323000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":4323000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-11-01","end":"2011-01-31","val":2817000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-11-01","end":"2011-01-31","val":2817000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2010Q4"},{"start":"2010-05-01","end":"2011-04-30","val":4887000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":4887000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":4887000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":1159000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":1159000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":6321000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":6321000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-08-01","end":"2011-10-31","val":5162000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2011Q3"},{"start":"2011-08-01","end":"2011-10-31","val":5162000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":12310000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":12310000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-11-01","end":"2012-01-31","val":5989000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2011Q4"},{"start":"2011-11-01","end":"2012-01-31","val":5989000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":14669000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":14669000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":4234000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":4234000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":8198000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":8198000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-08-01","end":"2012-10-31","val":3964000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2012Q3"},{"start":"2012-08-01","end":"2012-10-31","val":3964000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":12983000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-11-01","end":"2013-01-31","val":4785000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4"},{"start":"2012-05-01","end":"2013-04-30","val":12667000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":935000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":4987000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2013-08-01","end":"2013-10-31","val":4052000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3"}]}},"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":"2013-04-30","val":14236000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1I"}]}},"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":"2013-04-30","val":3132000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1I"}]}},"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":"2013-04-30","val":1547000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1I"}]}},"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":"2013-04-30","val":1625000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1I"}]}},"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":"2013-04-30","val":2527000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1I"}]}},"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":"2013-04-30","val":2817000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1I"}]}},"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":"2013-04-30","val":2588000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1I"}]}},"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":"2010-04-30","val":9052000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010Q1I"},{"end":"2010-04-30","val":9052000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2010-04-30","val":7966000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2010-04-30","val":7966000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2010-07-31","val":7680000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2010Q2I"},{"end":"2010-10-31","val":8027000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2010Q3I"},{"end":"2011-01-31","val":9038000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2010Q4I"},{"end":"2011-04-30","val":11298000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2011-04-30","val":11298000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2011-04-30","val":11298000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011Q1I"},{"end":"2011-04-30","val":11298000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2011-04-30","val":11298000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2011-07-31","val":11028000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2011Q2I"},{"end":"2011-10-31","val":10606000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2011Q3I"},{"end":"2012-01-31","val":10216000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2011Q4I"},{"end":"2012-04-30","val":11104000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":11104000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":11104000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":11083000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-04-30","val":11083000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2012-07-31","val":12343000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2012-10-31","val":13209000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":14325000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":11213000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":11213000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10"},{"end":"2013-04-30","val":11213000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2013-07-31","val":14038000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2013-10-31","val":14352000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"OtherAssetsCurrent":{"label":"Other Assets, Current","description":"Amount of current assets classified as other.","units":{"USD":[{"end":"2010-04-30","val":8837000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010Q1I"},{"end":"2010-04-30","val":8837000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2010-04-30","val":6351000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2010-04-30","val":6351000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2010-07-31","val":6036000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2010Q2I"},{"end":"2010-10-31","val":5920000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2010Q3I"},{"end":"2011-01-31","val":9571000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2010Q4I"},{"end":"2011-04-30","val":11539000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2011-04-30","val":11539000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2011-04-30","val":11539000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011Q1I"},{"end":"2011-04-30","val":11539000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2011-04-30","val":11539000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2011-07-31","val":10565000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2011Q2I"},{"end":"2011-10-31","val":10231000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2011Q3I"},{"end":"2012-01-31","val":11367000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2011Q4I"},{"end":"2012-04-30","val":14269000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":14269000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":14269000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":14269000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-04-30","val":14269000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2012-07-31","val":14128000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2012-10-31","val":16989000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":18023000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":17194000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":17194000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10"},{"end":"2013-04-30","val":17194000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2013-07-31","val":16459000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2013-10-31","val":12659000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"OtherAssetsNoncurrent":{"label":"Other Assets, Noncurrent","description":"Amount of noncurrent assets classified as other.","units":{"USD":[{"end":"2010-04-30","val":4511000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010Q1I"},{"end":"2010-04-30","val":4511000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2010-04-30","val":4511000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2010-04-30","val":4511000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2010-07-31","val":4353000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2010Q2I"},{"end":"2010-10-31","val":4327000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2010Q3I"},{"end":"2011-01-31","val":4287000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2010Q4I"},{"end":"2011-04-30","val":5958000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2011-04-30","val":5958000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2011-04-30","val":5958000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011Q1I"},{"end":"2011-04-30","val":5958000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2011-04-30","val":5958000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2011-07-31","val":6047000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2011Q2I"},{"end":"2011-10-31","val":5973000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2011Q3I"},{"end":"2012-01-31","val":5839000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2011Q4I"},{"end":"2012-04-30","val":5793000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":5793000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":5793000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":5793000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-04-30","val":5793000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2012-07-31","val":5545000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2012-10-31","val":5339000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":5589000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":6105000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":6105000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10"},{"end":"2013-04-30","val":6105000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2013-07-31","val":5870000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2013-10-31","val":5654000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPeriodIncreaseDecrease":{"label":"Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax (Deprecated 2012-01-31)","description":"Adjustment that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency of the reporting entity, net of tax.","units":{"USD":[{"start":"2008-05-01","end":"2009-04-30","val":-1362000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":446000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":1213000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":702000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":967000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":-967000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":-277000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":-277000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":655000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":655000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-05-01","end":"2011-01-31","val":922000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":922000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-05-01","end":"2011-04-30","val":1001000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":-1001000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2010"},{"start":"2011-05-01","end":"2011-07-31","val":91000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":91000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":-877000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":-877000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-08-01","end":"2011-10-31","val":-968000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2011Q3"},{"start":"2011-05-01","end":"2012-01-31","val":-1203000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":988000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011"},{"start":"2012-05-01","end":"2012-07-31","val":-1389000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-10-31","val":-770000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-08-01","end":"2012-10-31","val":619000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3"}]}},"OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationReclassificationAdjustmentRealizedUponSaleOrLiquidationNetOfTax":{"label":"Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment Realized upon Sale or Liquidation, Net of Tax (Deprecated 2012-01-31)","description":"Reclassification adjustment for translation gains or losses realized upon the sale or complete or substantially complete liquidation of an investment in foreign entity, after tax.","units":{"USD":[{"start":"2009-05-01","end":"2010-01-31","val":1277000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":1277000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":-1277000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2011-04-30","val":0,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":0,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011"}]}},"OtherComprehensiveIncomeForeignCurrencyTranslationAdjustmentTax":{"label":"Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax (Deprecated 2012-01-31)","description":"Tax effect of the adjustment that results from the process of translating subsidiary financial statements and foreign equity investments into functional currency of the reporting entity. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label.","units":{"USD":[{"start":"2008-05-01","end":"2009-04-30","val":-256000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":264000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":207000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":215000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":190000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":190000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":21000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":21000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":3000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":3000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-05-01","end":"2011-01-31","val":16000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":16000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-05-01","end":"2011-04-30","val":-578000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":-578000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2010"},{"start":"2011-05-01","end":"2011-07-31","val":15000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":15000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":-45000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":-153000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":-475552,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011"},{"start":"2012-05-01","end":"2012-07-31","val":29000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2"}]}},"OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax":{"label":"Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax","description":"Amount after tax and 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":"2010-05-01","end":"2011-04-30","val":1001000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2011-05-01","end":"2012-01-31","val":-1203000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-11-01","end":"2012-01-31","val":-326000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2011Q4"},{"start":"2011-05-01","end":"2012-04-30","val":-988000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2012-07-31","val":-1389000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-10-31","val":-770000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-08-01","end":"2012-10-31","val":619000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2012Q3"},{"start":"2012-05-01","end":"2013-01-31","val":-569000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-11-01","end":"2013-01-31","val":201000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4"},{"start":"2012-05-01","end":"2013-04-30","val":-1170000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":-276000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":701000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2013-08-01","end":"2013-10-31","val":977000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3"}]}},"OtherComprehensiveIncomeLossNetOfTax":{"label":"Other Comprehensive Income (Loss), Net of Tax","description":"Amount after tax and reclassification adjustments of other comprehensive income (loss).","units":{"USD":[{"start":"2010-05-01","end":"2011-04-30","val":924000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2011-05-01","end":"2012-01-31","val":-1203000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-04-30","val":-1001000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2012-07-31","val":-1389000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-10-31","val":-770000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2013-01-31","val":-569000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":-1216000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":-276000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":701000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"}]}},"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":"2008-05-01","end":"2009-04-30","val":-24981000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":-8105000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":-6641000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":-6622000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":-6151000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":2333000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":-817000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":-817000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":-208000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":-208000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-05-01","end":"2011-01-31","val":1300000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":1300000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-05-01","end":"2011-04-30","val":1690000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":924000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2010"},{"start":"2011-05-01","end":"2011-07-31","val":802000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":91000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":-877000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":2613000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":5603000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":-1001000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011"},{"start":"2012-05-01","end":"2012-07-31","val":-1389000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-10-31","val":-770000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"}]}},"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":"2010-05-01","end":"2011-04-30","val":77000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":13000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":46000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"OtherComprehensiveIncomeLossTax":{"label":"Other Comprehensive Income (Loss), Tax","description":"Amount of tax expense (benefit) allocated to other comprehensive income (loss).","units":{"USD":[{"start":"2009-05-01","end":"2010-04-30","val":196000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2011-04-30","val":-564000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2010"},{"start":"2011-05-01","end":"2011-07-31","val":15000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2012-04-30","val":-472552,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011"},{"start":"2012-05-01","end":"2012-07-31","val":29000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2"}]}},"OtherComprehensiveIncomeMinimumPensionLiabilityNetAdjustmentNetOfTax":{"label":"Other Comprehensive Income (Loss), Minimum Pension Liability Net Adjustment, Net of Tax (Deprecated 2012-01-31)","description":"The after-tax amount of the change in the additional pension liability not yet recognized pursuant to FAS 87 par 37 and 38 as a net periodic pension cost. If the additional pension liability required to be recognized exceeds the unrecognized prior service costs, then the excess (which is the net loss not yet recognized as net periodic pension cost) is to be recorded as a reduction of other comprehensive income, before adjusting for tax effects. If in a subsequent measurement, the amount of minimum liability is eliminated or adjusted, this adjustment is offset against other comprehensive income in Accumulated Comprehensive Income. This line also includes changes in an entity's share of an equity investee's Increase or Decrease in additional pension liability not yet recognized as a net periodic pension cost. Eliminated upon adoption of FAS 158.","units":{"USD":[{"start":"2008-05-01","end":"2009-04-30","val":200000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":5000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":5000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":-5000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":89000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":-89000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2011-04-30","val":-77000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":77000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":13000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011"}]}},"OtherComprehensiveIncomeMinimumPensionLiabilityNetAdjustmentTax":{"label":"Other Comprehensive Income (Loss), Minimum Pension Liability Net Adjustment, Tax (Deprecated 2012-01-31)","description":"The tax effect of the amount of the change in the additional minimum pension liability not yet recognized pursuant to FAS 87 as a net periodic pension cost. If the additional pension liability required to be recognized exceeds the unrecognized prior service costs, then the excess (which is the net loss not yet recognized as net periodic pension cost) is to be recorded as a separate component in other comprehensive income, before adjusting for tax effects. In a subsequent measurement, the elimination or adjustment to the amount of the minimum pension liability recorded in accumulated other comprehensive income is included in this line. Eliminated upon adoption of FAS 158.","units":{"USD":[{"start":"2008-05-01","end":"2009-04-30","val":-56000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":5000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":5000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":-5000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":6000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":6000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2011-04-30","val":14000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":14000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":3000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011"}]}},"OtherCostAndExpenseOperating":{"label":"Other Cost and Expense, Operating","description":"The total amount of other operating cost and expense items that are associated with the entity's normal revenue producing operation.","units":{"USD":[{"start":"2012-05-01","end":"2012-07-31","val":0,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-10-31","val":0,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-08-01","end":"2012-10-31","val":0,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2012Q3"},{"start":"2013-05-01","end":"2013-07-31","val":1603000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":2995000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2013-08-01","end":"2013-10-31","val":1392000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3"}]}},"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":"2010-04-30","val":1593000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010Q1I"},{"end":"2010-04-30","val":1593000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2010-04-30","val":1593000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2010-04-30","val":1575000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2010-07-31","val":1594000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2010Q2I"},{"end":"2010-10-31","val":1823000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2010Q3I"},{"end":"2011-01-31","val":1944000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2010Q4I"},{"end":"2011-04-30","val":2214000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2011-04-30","val":2214000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2011-04-30","val":2214000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011Q1I"},{"end":"2011-04-30","val":2214000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2011-04-30","val":2214000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2011-07-31","val":2230000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2011Q2I"},{"end":"2011-10-31","val":2234000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2011Q3I"},{"end":"2012-01-31","val":2247000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2011Q4I"},{"end":"2012-04-30","val":1554000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":1554000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":1554000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":1554000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-04-30","val":1554000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2012-07-31","val":1559000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2012-10-31","val":1635000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":1651000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":1782000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":1782000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10"},{"end":"2013-04-30","val":1782000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2013-07-31","val":1747000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2013-10-31","val":2502000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"OtherNoncashExpense":{"label":"Other Noncash Expense","description":"Amount of expense or loss included in net income that result in no cash flow, classified as other.","units":{"USD":[{"start":"2008-05-01","end":"2009-04-30","val":0,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-10-31","val":1219000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":1168000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":1175000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":1175000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":9000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-10-31","val":112000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":112000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-05-01","end":"2011-01-31","val":152000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":152000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-05-01","end":"2011-04-30","val":242000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":242000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":242000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":-57000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":-57000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":-105000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":-105000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":-162000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":-162000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":-60000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":-60000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":-14000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":-14000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":-51000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":-51000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":120000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":135000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":10000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":22000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"}]}},"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":"2009-05-01","end":"2010-04-30","val":112000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-10-31","val":-12000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-05-01","end":"2011-01-31","val":-69000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-05-01","end":"2011-04-30","val":-261000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":261000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":-2000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":-26000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":-7000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":-37000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":-9000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":-119000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":119000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":-38000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":-29000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":-48000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":-48000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":-41000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":-235000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":-9000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":-216000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"}]}},"OtherNonoperatingIncomeExpense":{"label":"Other Nonoperating Income (Expense)","description":"Amount of income (expense) related to nonoperating activities, classified as other.","units":{"USD":[{"start":"2008-05-01","end":"2009-04-30","val":-614000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":502000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":352000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-08-01","end":"2009-10-31","val":-150000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2009Q3"},{"start":"2009-05-01","end":"2010-01-31","val":-866000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-11-01","end":"2010-01-31","val":-1218000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2009Q4"},{"start":"2009-05-01","end":"2010-04-30","val":-1111000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":-1111000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":292000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":292000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":396000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":396000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-08-01","end":"2010-10-31","val":104000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-08-01","end":"2010-10-31","val":104000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2010Q3"},{"start":"2010-05-01","end":"2011-01-31","val":315000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":315000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-11-01","end":"2011-01-31","val":-81000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-11-01","end":"2011-01-31","val":-81000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2010Q4"},{"start":"2010-05-01","end":"2011-04-30","val":686000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":686000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":686000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":-134000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":-134000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":-127000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":-127000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-08-01","end":"2011-10-31","val":7000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2011Q3"},{"start":"2011-08-01","end":"2011-10-31","val":7000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":-511000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":-511000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-11-01","end":"2012-01-31","val":-384000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2011Q4"},{"start":"2011-11-01","end":"2012-01-31","val":-384000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":-954000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":-954000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":-265000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":-265000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":-389000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":-389000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-08-01","end":"2012-10-31","val":-124000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2012Q3"},{"start":"2012-08-01","end":"2012-10-31","val":-124000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":-641000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-11-01","end":"2013-01-31","val":-252000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4"},{"start":"2012-05-01","end":"2013-04-30","val":-1017000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":-1523000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":-1185000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2013-08-01","end":"2013-10-31","val":338000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3"}]}},"PaymentsForProceedsFromOtherInvestingActivities":{"label":"Payments for (Proceeds from) Other Investing Activities","description":"Amount of cash (inflow) outflow from investing activities classified as other.","units":{"USD":[{"start":"2008-05-01","end":"2009-04-30","val":-217000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2010-04-30","val":0,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2009"},{"start":"2010-05-01","end":"2011-04-30","val":0,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010"}]}},"PaymentsOfDebtIssuanceCosts":{"label":"Payments of Debt Issuance Costs","description":"The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.","units":{"USD":[{"start":"2008-05-01","end":"2009-04-30","val":1364000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":362000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":607000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":607000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":607000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":607000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2011-01-31","val":0,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-04-30","val":0,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":0,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":0,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011"}]}},"PaymentsOfStockIssuanceCosts":{"label":"Payments of Stock Issuance Costs","description":"The cash outflow for cost incurred directly with the issuance of an equity security.","units":{"USD":[{"start":"2009-05-01","end":"2009-10-31","val":1700000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":1700000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":1700000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":1700000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"}]}},"PaymentsToAcquireIntangibleAssets":{"label":"Payments to Acquire Intangible Assets","description":"The cash outflow to acquire asset without physical form usually arising from contractual or other legal rights, excluding goodwill.","units":{"USD":[{"start":"2008-05-01","end":"2009-04-30","val":782000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":178000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":412000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":628000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":773000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":773000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":189000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":189000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":349000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":349000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-05-01","end":"2011-01-31","val":658000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":658000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-05-01","end":"2011-04-30","val":855000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":855000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":855000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":74000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":74000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":328000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":328000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":497000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":497000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":654000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":654000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":152000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":152000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":350000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":350000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":558000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":786000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":191000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":320000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"}]}},"PaymentsToAcquireOtherInvestments":{"label":"Payments to Acquire Other Investments","description":"Amount of cash outflow to acquire investments classified as other.","units":{"USD":[{"start":"2008-05-01","end":"2009-04-30","val":3604000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2010-04-30","val":0,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2009"},{"start":"2010-05-01","end":"2011-04-30","val":0,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010"}]}},"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":"2008-05-01","end":"2009-04-30","val":8150000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":4294000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":7545000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":8297000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":9196000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":9196000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":508000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":508000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":800000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":800000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-05-01","end":"2011-01-31","val":2042000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":2042000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-05-01","end":"2011-04-30","val":2675000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":2675000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":2675000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":557000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":557000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":2023000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":2023000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":2849000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":2849000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":3947000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":3947000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":1298000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":1298000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":3426000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":3426000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":4378000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":5820000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":1335000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":2023000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"}]}},"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":"2010-04-30","val":0.01,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010Q1I"},{"end":"2010-04-30","val":0.01,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2010-04-30","val":0.01,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2010-04-30","val":0.01,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2010-07-31","val":0.01,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2010Q2I"},{"end":"2010-10-31","val":0.01,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2010Q3I"},{"end":"2011-01-31","val":0.01,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2010Q4I"},{"end":"2011-04-30","val":0.01,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2011-04-30","val":0.01,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2011-04-30","val":0.01,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011Q1I"},{"end":"2011-04-30","val":0.01,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2011-04-30","val":0.01,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2011-07-31","val":0.01,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2011Q2I"},{"end":"2011-10-31","val":0.01,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2011Q3I"},{"end":"2012-01-31","val":0.01,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2011Q4I"},{"end":"2012-04-30","val":0.01,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":0.01,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":0.01,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":0.01,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-04-30","val":0.01,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2012-07-31","val":0.01,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2012-10-31","val":0.01,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":0.01,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":0.01,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":0.01,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2013-10-31","val":0.01,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"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":"2010-04-30","val":1000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010Q1I"},{"end":"2010-04-30","val":1000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2010-04-30","val":1000000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2010-04-30","val":1000000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2010-07-31","val":1000000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2010Q2I"},{"end":"2010-10-31","val":1000000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2010Q3I"},{"end":"2011-01-31","val":1000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2010Q4I"},{"end":"2011-04-30","val":1000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2011-04-30","val":1000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2011-04-30","val":1000000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011Q1I"},{"end":"2011-04-30","val":1000000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2011-04-30","val":1000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2011-07-31","val":1000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2011Q2I"},{"end":"2011-10-31","val":1000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2011Q3I"},{"end":"2012-01-31","val":1000000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2011Q4I"},{"end":"2012-04-30","val":1000000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":1000000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":1000000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":1000000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-04-30","val":1000000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2012-07-31","val":1000000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2012-10-31","val":1000000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":1000000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":1000000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":1000000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2013-10-31","val":1000000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"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":"2010-04-30","val":0,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010Q1I"},{"end":"2010-04-30","val":0,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2010-04-30","val":0,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2010-04-30","val":0,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2010-07-31","val":0,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2010Q2I"},{"end":"2010-10-31","val":0,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2010Q3I"},{"end":"2011-01-31","val":0,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2010Q4I"},{"end":"2011-04-30","val":0,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2011-04-30","val":0,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2011-04-30","val":0,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011Q1I"},{"end":"2011-04-30","val":0,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2011-04-30","val":0,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2011-07-31","val":0,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2011Q2I"},{"end":"2011-10-31","val":0,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2011Q3I"},{"end":"2012-01-31","val":0,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2011Q4I"},{"end":"2012-04-30","val":0,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":0,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":0,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":0,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-04-30","val":0,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2012-07-31","val":0,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2012-10-31","val":0,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":0,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":0,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":0,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2013-10-31","val":0,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"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":"2010-04-30","val":0,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010Q1I"},{"end":"2010-04-30","val":0,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2010-04-30","val":0,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2010-10-31","val":0,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2010Q3I"},{"end":"2011-01-31","val":0,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2010Q4I"},{"end":"2011-04-30","val":0,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2011-04-30","val":0,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2011-04-30","val":0,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011Q1I"},{"end":"2011-04-30","val":0,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2011-04-30","val":0,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2011-07-31","val":0,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2011Q2I"},{"end":"2011-10-31","val":0,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2011Q3I"},{"end":"2012-01-31","val":0,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2011Q4I"},{"end":"2012-04-30","val":0,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":0,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":0,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":0,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-04-30","val":0,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2012-07-31","val":0,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2012-10-31","val":0,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":0,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":0,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":0,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2013-10-31","val":0,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"PreferredStockValue":{"label":"Preferred Stock, Value, Issued","description":"Aggregate par or stated value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity.","units":{"USD":[{"end":"2010-04-30","val":0,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010Q1I"},{"end":"2010-04-30","val":0,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2011-01-31","val":0,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2010Q4I"},{"end":"2011-04-30","val":0,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2011-04-30","val":0,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2011-04-30","val":0,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011Q1I"},{"end":"2011-04-30","val":0,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2011-04-30","val":0,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2011-07-31","val":0,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2011Q2I"},{"end":"2011-10-31","val":0,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2011Q3I"},{"end":"2012-01-31","val":0,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2011Q4I"},{"end":"2012-04-30","val":0,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":0,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":0,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":0,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-04-30","val":0,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2012-07-31","val":0,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2012-10-31","val":0,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":0,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":0,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":0,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2013-10-31","val":0,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"ProceedsFromIssuanceOfCommonStock":{"label":"Proceeds from Issuance of Common Stock","description":"The cash inflow from the additional capital contribution to the entity.","units":{"USD":[{"start":"2008-05-01","end":"2009-04-30","val":0,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-10-31","val":17439000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":17199000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":17199000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":17199000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2011-01-31","val":0,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-04-30","val":0,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":0,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":0,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011"}]}},"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":"2008-05-01","end":"2009-04-30","val":15000000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":2250000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":5250000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":12325000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":19441000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":19441000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":12000000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":12000000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":18050000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":18050000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-05-01","end":"2011-01-31","val":35100000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":35100000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-05-01","end":"2011-04-30","val":51050000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":51050000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":51050000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":14900000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":14900000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":31200000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":31200000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":45750000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":45750000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":63450000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":63450000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":14940000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":14940000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":31140000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":31140000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":37990000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":37990000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":7400000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":29000000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"}]}},"ProceedsFromNotesPayable":{"label":"Proceeds from Notes Payable","description":"The cash inflow from a borrowing supported by a written promise to pay an obligation.","units":{"USD":[{"start":"2008-05-01","end":"2009-04-30","val":1264000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2010-04-30","val":0,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2009"},{"start":"2010-05-01","end":"2011-04-30","val":0,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010"}]}},"ProceedsFromOtherDebt":{"label":"Proceeds from Other Debt","description":"Amount of cash inflow from debt classified as other.","units":{"USD":[{"start":"2008-05-01","end":"2009-04-30","val":1497000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2010-01-31","val":2000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":0,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":0,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-10-31","val":0,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-05-01","end":"2011-01-31","val":38000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":38000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-05-01","end":"2011-04-30","val":38000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":38000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2010"},{"start":"2011-05-01","end":"2011-10-31","val":37000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":37000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":19000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011"}]}},"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":"2008-05-01","end":"2009-04-30","val":195000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":5000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":4690000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":4775000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":4685000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":4685000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":17000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":17000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":17000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":17000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-05-01","end":"2011-01-31","val":31000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":31000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-05-01","end":"2011-04-30","val":30000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":30000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":30000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":38000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":38000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":37000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":37000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":36000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":36000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":98000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":98000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":4000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":4000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":5000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":5000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":223000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":243000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-10-31","val":0,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"}]}},"ProductWarrantyExpense":{"label":"Product Warranty Expense","description":"The expense charged against earnings for the period pertaining to standard and extended warranties on the entity's goods and services granted to customers.","units":{"USD":[{"start":"2008-05-01","end":"2009-04-30","val":3415000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":651000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":1316000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":2106000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":3367000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":3367000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":767000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":767000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":1377000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":1377000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-05-01","end":"2011-01-31","val":1304000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":1304000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-05-01","end":"2011-04-30","val":2695000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":2695000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":2695000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":1035000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":1035000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":1972000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":1972000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":3043000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":3043000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":4235000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":4235000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":1711000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":1711000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":3034000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":3034000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":4389000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":5880000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":1462000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":3147000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"}]}},"ProfitLoss":{"label":"Net Income (Loss), Including Portion Attributable to Noncontrolling Interest","description":"The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.","units":{"USD":[{"start":"2008-05-01","end":"2009-04-30","val":-23819000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":-8546000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":-7849000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-08-01","end":"2009-10-31","val":697000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2009Q3"},{"start":"2009-05-01","end":"2010-01-31","val":-8596000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-11-01","end":"2010-01-31","val":-747000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2009Q4"},{"start":"2009-05-01","end":"2010-04-30","val":-8484000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":-8484000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":-540000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":-540000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":-863000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":-863000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-08-01","end":"2010-10-31","val":-323000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-08-01","end":"2010-10-31","val":-323000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2010Q3"},{"start":"2010-05-01","end":"2011-01-31","val":378000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":378000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-11-01","end":"2011-01-31","val":1241000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-11-01","end":"2011-01-31","val":1241000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2010Q4"},{"start":"2010-05-01","end":"2011-04-30","val":766000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":766000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":766000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":711000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":711000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-07-31","val":711000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2011-05-01","end":"2011-10-31","val":3490000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":3490000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-08-01","end":"2011-10-31","val":2779000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011Q3"},{"start":"2011-08-01","end":"2011-10-31","val":2779000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-08-01","end":"2011-10-31","val":2779000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":6806000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":6806000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-11-01","end":"2012-01-31","val":3316000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011Q4"},{"start":"2011-11-01","end":"2012-01-31","val":3316000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-11-01","end":"2012-01-31","val":3316000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":9449000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":9449000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-02-01","end":"2012-04-30","val":2643000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1"},{"start":"2012-05-01","end":"2012-07-31","val":2221000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":2221000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"start":"2012-05-01","end":"2012-07-31","val":2221000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":4331000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":4331000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-08-01","end":"2012-10-31","val":2110000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2012Q3"},{"start":"2012-08-01","end":"2012-10-31","val":2110000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"start":"2012-08-01","end":"2012-10-31","val":2110000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":6942000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-11-01","end":"2013-01-31","val":2611000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q4"},{"start":"2012-11-01","end":"2013-01-31","val":2611000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":5037000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-02-01","end":"2013-04-30","val":-1905000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1"},{"start":"2013-05-01","end":"2013-07-31","val":-845000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":1245000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2013-08-01","end":"2013-10-31","val":2090000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3"}]}},"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":"2012-04-30","val":48740000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2013-04-30","val":52857000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1I"}]}},"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":"2010-04-30","val":21769000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010Q1I"},{"end":"2010-04-30","val":21769000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2010-04-30","val":21769000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2010-04-30","val":21769000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2010-07-31","val":20345000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2010Q2I"},{"end":"2010-10-31","val":19862000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2010Q3I"},{"end":"2011-01-31","val":19139000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2010Q4I"},{"end":"2011-04-30","val":19104000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2011-04-30","val":19104000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2011-04-30","val":19104000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011Q1I"},{"end":"2011-04-30","val":19104000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2011-04-30","val":19104000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2011-07-31","val":18974000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2011Q2I"},{"end":"2011-10-31","val":18337000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2011Q3I"},{"end":"2012-01-31","val":17380000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2011Q4I"},{"end":"2012-04-30","val":17488000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":17488000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":17488000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":17488000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-04-30","val":17488000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2012-07-31","val":17831000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2012-10-31","val":18592000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":17949000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":17894000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":17894000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10"},{"end":"2013-04-30","val":17894000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2013-07-31","val":17373000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2013-10-31","val":16840000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"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":"2008-05-01","end":"2009-04-30","val":1225000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":170000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":447000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":517000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":813000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":813000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":31000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":31000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":134000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":134000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-05-01","end":"2011-01-31","val":346000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":346000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-05-01","end":"2011-04-30","val":434000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":434000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":434000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":178000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":178000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":344000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":344000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":389000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":389000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":531000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":531000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":113000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":113000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":220000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":220000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":253000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":338000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":53000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":164000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"}]}},"ReceivablesNetCurrent":{"label":"Receivables, Net, Current","description":"The total amount due to the entity within one year of the balance sheet date (or one operating cycle, if longer) from outside sources, including trade accounts receivable, notes and loans receivable, as well as any other types of receivables, net of allowances established for the purpose of reducing such receivables to an amount that approximates their net realizable value.","units":{"USD":[{"end":"2010-04-30","val":35749000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010Q1I"},{"end":"2010-04-30","val":35749000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2010-04-30","val":35749000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2010-04-30","val":35749000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2010-07-31","val":35008000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2010Q2I"},{"end":"2010-10-31","val":40437000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2010Q3I"},{"end":"2011-01-31","val":39929000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2010Q4I"},{"end":"2011-04-30","val":47082000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2011-04-30","val":47082000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2011-04-30","val":47082000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011Q1I"},{"end":"2011-04-30","val":47082000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2011-04-30","val":47082000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2011-07-31","val":42990000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2011Q2I"},{"end":"2011-10-31","val":47610000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2011Q3I"},{"end":"2012-01-31","val":47247000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2011Q4I"},{"end":"2012-04-30","val":46830000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":46830000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":46830000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":46830000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-04-30","val":46830000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2012-07-31","val":47444000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2012-10-31","val":47633000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":52935000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":42741000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":42741000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10"},{"end":"2013-04-30","val":42741000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2013-07-31","val":46542000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2013-10-31","val":49770000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"RepaymentsOfLinesOfCredit":{"label":"Repayments of Lines of Credit","description":"Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.","units":{"USD":[{"start":"2008-05-01","end":"2009-04-30","val":2000000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-10-31","val":18050000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":23175000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":32091000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":32091000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":12350000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":12350000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":16350000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":16350000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-05-01","end":"2011-01-31","val":33550000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":33550000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-05-01","end":"2011-04-30","val":45900000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":45900000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":45900000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":17300000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":17300000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":34350000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":34350000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":51250000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":51250000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":68950000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":68950000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":14940000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":14940000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":31140000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":31140000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":37990000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":37990000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":7400000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":26450000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"}]}},"RepaymentsOfOtherDebt":{"label":"Repayments of Other Debt","description":"Amount of cash outflow for the payment of debt classified as other.","units":{"USD":[{"start":"2008-05-01","end":"2009-04-30","val":487000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":130000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":1362000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":1380000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":1398000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":1398000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":22000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":22000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":35000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":35000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-05-01","end":"2011-01-31","val":46000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":46000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-05-01","end":"2011-04-30","val":74000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":36000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":74000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":41000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":41000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":-29000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":8000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":-27000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":10000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":-5000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":14000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":0,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":0,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":2000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":2000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":2000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":-28000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":7000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":3000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"}]}},"RepaymentsOfOtherLongTermDebt":{"label":"Repayments of Other Long-term Debt","description":"Amount of cash outflow for the payment of debt classified as other, maturing after one year or the operating cycle, if longer.","units":{"USD":[{"start":"2008-05-01","end":"2009-04-30","val":781000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":2862000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":4245000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":4322000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":4214000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":4214000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2011-01-31","val":0,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-04-30","val":0,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":0,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":0,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011"}]}},"RepaymentsOfSubordinatedDebt":{"label":"Repayments of Subordinated Debt","description":"The cash outflow from the repayment of long-term borrowing where a lender is placed in a lien position behind debt having a higher priority of repayment (senior) in case of liquidation of the entity's assets or underlying collateral.","units":{"USD":[{"start":"2012-05-01","end":"2012-10-31","val":0,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2013-05-01","end":"2013-10-31","val":10824000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"}]}},"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":"2008-05-01","end":"2009-04-30","val":8644000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":1697000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":3547000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-08-01","end":"2009-10-31","val":1850000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2009Q3"},{"start":"2009-05-01","end":"2010-01-31","val":5782000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-11-01","end":"2010-01-31","val":2235000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2009Q4"},{"start":"2009-05-01","end":"2010-04-30","val":8104000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":8104000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":2146000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":2146000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":4582000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":4582000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-08-01","end":"2010-10-31","val":2436000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-08-01","end":"2010-10-31","val":2436000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2010Q3"},{"start":"2010-05-01","end":"2011-01-31","val":7095000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":7095000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-11-01","end":"2011-01-31","val":2513000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-11-01","end":"2011-01-31","val":2513000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2010Q4"},{"start":"2010-05-01","end":"2011-04-30","val":10074000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":10074000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":10074000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":2656000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":2656000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":5367000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":5367000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-08-01","end":"2011-10-31","val":2711000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2011Q3"},{"start":"2011-08-01","end":"2011-10-31","val":2711000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":8079000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":8079000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-11-01","end":"2012-01-31","val":2712000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2011Q4"},{"start":"2011-11-01","end":"2012-01-31","val":2712000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":10863000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":10863000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":2211000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":2211000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":5218000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":5218000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-08-01","end":"2012-10-31","val":3007000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2012Q3"},{"start":"2012-08-01","end":"2012-10-31","val":3007000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":8431000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-11-01","end":"2013-01-31","val":3213000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4"},{"start":"2012-05-01","end":"2013-04-30","val":11431000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":2946000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":5810000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2013-08-01","end":"2013-10-31","val":2864000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3"}]}},"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":"2010-04-30","val":639000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010Q1I"},{"end":"2010-04-30","val":639000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2010-04-30","val":639000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2010-04-30","val":639000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2010-07-31","val":743000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2010Q2I"},{"end":"2010-10-31","val":695000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2010Q3I"},{"end":"2011-01-31","val":2324000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2010Q4I"},{"end":"2011-04-30","val":1766000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2011-04-30","val":1766000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2011-04-30","val":1766000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011Q1I"},{"end":"2011-04-30","val":1766000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2011-04-30","val":1766000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2011-07-31","val":1414000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2011Q2I"},{"end":"2011-10-31","val":1432000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2011Q3I"},{"end":"2012-01-31","val":1104000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2011Q4I"},{"end":"2012-04-30","val":1435000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":1435000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":1435000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":1435000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-04-30","val":1435000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2012-07-31","val":405000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2012-10-31","val":865000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":78000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":0,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1I"}]}},"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":"2008-05-01","end":"2009-04-30","val":6878000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":4823000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":4222000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-08-01","end":"2009-10-31","val":-601000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2009Q3"},{"start":"2009-05-01","end":"2010-01-31","val":4222000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-11-01","end":"2010-01-31","val":0,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2009Q4"},{"start":"2009-05-01","end":"2010-04-30","val":4222000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":4222000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2011-01-31","val":0,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-11-01","end":"2011-01-31","val":0,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2010Q4"},{"start":"2010-05-01","end":"2011-04-30","val":0,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":0,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":0,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011"}]}},"RetainedEarningsAccumulatedDeficit":{"label":"Retained Earnings (Accumulated Deficit)","description":"The cumulative amount of the reporting entity's undistributed earnings or deficit.","units":{"USD":[{"end":"2010-04-30","val":-79887000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010Q1I"},{"end":"2010-04-30","val":-79887000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2010-04-30","val":-79887000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2010-04-30","val":-79887000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2010-07-31","val":-80427000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2010Q2I"},{"end":"2010-10-31","val":-80750000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2010Q3I"},{"end":"2011-01-31","val":-79509000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2010Q4I"},{"end":"2011-04-30","val":-79121000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2011-04-30","val":-79121000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2011-04-30","val":-79121000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011Q1I"},{"end":"2011-04-30","val":-79121000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2011-04-30","val":-79121000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2011-07-31","val":-78410000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2011Q2I"},{"end":"2011-10-31","val":-75631000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2011Q3I"},{"end":"2012-01-31","val":-72315000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2011Q4I"},{"end":"2012-04-30","val":-69672000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":-69672000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":-69672000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":-69672000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-04-30","val":-69672000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2012-07-31","val":-67451000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2012-10-31","val":-65341000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":-62730000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":-64635000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":-64635000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10"},{"end":"2013-04-30","val":-64635000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2013-07-31","val":-65480000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2013-10-31","val":-63390000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"SaleOfStockPricePerShare":{"label":"Sale of Stock, Price Per Share","description":"Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.","units":{"USD/shares":[{"end":"2009-10-31","val":2.1,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2009Q3I"},{"end":"2010-01-31","val":2.1,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2010-01-31","val":2.1,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2010-01-31","val":2.1,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009Q4I"}]}},"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":"2008-05-01","end":"2009-04-30","val":210103000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":37752000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":79789000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-08-01","end":"2009-10-31","val":42037000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2009Q3"},{"start":"2009-05-01","end":"2010-01-31","val":125145000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-11-01","end":"2010-01-31","val":45356000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2009Q4"},{"start":"2009-05-01","end":"2010-04-30","val":173749000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":173749000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":46580000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":46580000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":99515000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":99515000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-08-01","end":"2010-10-31","val":52935000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-08-01","end":"2010-10-31","val":52935000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2010Q3"},{"start":"2010-05-01","end":"2011-01-31","val":156988000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":156988000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-11-01","end":"2011-01-31","val":57473000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-11-01","end":"2011-01-31","val":57473000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2010Q4"},{"start":"2010-05-01","end":"2011-04-30","val":216524000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":216524000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":216524000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":60030000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":60030000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-07-31","val":60030000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2011-05-01","end":"2011-10-31","val":124563000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":124563000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-08-01","end":"2011-10-31","val":64533000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011Q3"},{"start":"2011-08-01","end":"2011-10-31","val":64533000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-08-01","end":"2011-10-31","val":64533000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":190371000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":190371000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-11-01","end":"2012-01-31","val":65808000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011Q4"},{"start":"2011-11-01","end":"2012-01-31","val":65808000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-11-01","end":"2012-01-31","val":65808000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":253768000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":253768000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-02-01","end":"2012-04-30","val":63397000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1"},{"start":"2012-05-01","end":"2012-07-31","val":66235000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":66235000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"start":"2012-05-01","end":"2012-07-31","val":66235000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":133273000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":133273000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-08-01","end":"2012-10-31","val":67038000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2012Q3"},{"start":"2012-08-01","end":"2012-10-31","val":67038000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"start":"2012-08-01","end":"2012-10-31","val":67038000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":200931000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-11-01","end":"2013-01-31","val":67658000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q4"},{"start":"2012-11-01","end":"2013-01-31","val":67658000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":259338000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-02-01","end":"2013-04-30","val":58407000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1"},{"start":"2013-05-01","end":"2013-07-31","val":59004000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":125317000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2013-08-01","end":"2013-10-31","val":66313000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3"}]}},"SelfInsuranceReserve":{"label":"Self Insurance Reserve","description":"Carrying amount (including both current and noncurrent portions) of accrued known and estimated losses incurred as of the balance sheet date for which no insurance coverage exists, and for which a claim has been made or is probable of being asserted, typically arising from workmen's compensation-type of incidents and personal injury to nonemployees from accidents on the entity's property.","units":{"USD":[{"end":"2012-04-30","val":300000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2013-04-30","val":400000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1I"}]}},"SellingAndMarketingExpense":{"label":"Selling and Marketing Expense","description":"The aggregate total amount of expenses directly related to the marketing or selling of products or services.","units":{"USD":[{"start":"2008-05-01","end":"2009-04-30","val":41170000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":7916000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":16891000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-08-01","end":"2009-10-31","val":8975000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2009Q3"},{"start":"2009-05-01","end":"2010-01-31","val":26956000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-11-01","end":"2010-01-31","val":10065000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2009Q4"},{"start":"2009-05-01","end":"2010-04-30","val":37259000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":37259000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":10596000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":10596000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":21481000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":21481000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-08-01","end":"2010-10-31","val":10885000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-08-01","end":"2010-10-31","val":10885000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2010Q3"},{"start":"2010-05-01","end":"2011-01-31","val":33049000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":33049000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-11-01","end":"2011-01-31","val":11568000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-11-01","end":"2011-01-31","val":11568000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2010Q4"},{"start":"2010-05-01","end":"2011-04-30","val":45359000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":45359000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":45359000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":12696000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":12696000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":24778000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":24778000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-08-01","end":"2011-10-31","val":12082000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2011Q3"},{"start":"2011-08-01","end":"2011-10-31","val":12082000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":36806000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":36806000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-11-01","end":"2012-01-31","val":12028000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2011Q4"},{"start":"2011-11-01","end":"2012-01-31","val":12028000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":49454000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":49454000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":12479000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":12479000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":25198000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":25198000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-08-01","end":"2012-10-31","val":12719000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2012Q3"},{"start":"2012-08-01","end":"2012-10-31","val":12719000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":38035000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-11-01","end":"2013-01-31","val":12837000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4"},{"start":"2012-05-01","end":"2013-04-30","val":50251000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":10794000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":22299000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2013-08-01","end":"2013-10-31","val":11505000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3"}]}},"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":"2013-05-01","end":"2013-07-31","val":600000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":600000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2013-08-01","end":"2013-10-31","val":0,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3"}]}},"ShareBasedCompensation":{"label":"Share-based Payment Arrangement, Noncash Expense","description":"Amount of noncash expense for share-based payment arrangement.","units":{"USD":[{"start":"2008-05-01","end":"2009-04-30","val":1724000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":365000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":987000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":1452000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":1911000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":1911000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":643000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":643000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":1284000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":1284000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-05-01","end":"2011-01-31","val":1855000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":1855000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-05-01","end":"2011-04-30","val":2347000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":2347000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":2347000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":577000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":577000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":1198000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":1198000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":1783000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":1783000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":3546000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":3546000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":672000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":672000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":1299000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":1299000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":1976000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":2513000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":550000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":1116000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"}]}},"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":"2010-05-01","end":"2011-04-30","val":451000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":513000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011"}]}},"SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleAmountOfUnrecordedBenefit":{"label":"Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit","description":"The amount of the unrecognized tax benefit of a position taken for which it is reasonably possible that the total amount thereof will significantly increase or decrease within twelve months of the balance sheet date.","units":{"USD":[{"end":"2013-04-30","val":400000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1I"}]}},"StandardProductWarrantyAccrual":{"label":"Standard Product Warranty Accrual","description":"Amount as of the balance sheet date of the aggregate standard product warranty liability. Does not include the balance for the extended product warranty liability.","units":{"USD":[{"end":"2010-04-30","val":2533000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010Q1I"},{"end":"2011-04-30","val":2804000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011Q1I"},{"end":"2011-04-30","val":2804000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2011-04-30","val":2804000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2011-04-30","val":2804000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2011-07-31","val":2844000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2I"},{"end":"2011-10-31","val":2869000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2011Q3I"},{"end":"2012-01-31","val":2963000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2011Q4I"},{"end":"2012-04-30","val":3013000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2012Q1I"},{"end":"2012-04-30","val":3013000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10"},{"end":"2012-04-30","val":3013000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2012-04-30","val":3013000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":3013000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":3013000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-07-31","val":3259000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2I"},{"end":"2012-07-31","val":3259000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-10-31","val":3442000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2012Q3I"},{"end":"2012-10-31","val":3442000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2013-01-31","val":3671000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":3724000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":3722000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10"},{"end":"2013-04-30","val":3724000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2013-07-31","val":3804000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2013-10-31","val":4093000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"StandardProductWarrantyAccrualPayments":{"label":"Standard Product Warranty Accrual, Decrease for Payments","description":"Amount of decrease in the standard product warranty accrual from payments made in cash or in kind to satisfy claims under the terms of the standard product warranty. Excludes extended product warranties.","units":{"USD":[{"start":"2010-05-01","end":"2011-04-30","val":2424000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2011-05-01","end":"2011-07-31","val":995000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":1907000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2012-01-31","val":2884000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-04-30","val":4026000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2012-07-31","val":1465000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":1465000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":2605000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":2605000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":3731000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":5169000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":1380000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":2778000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"}]}},"StandardProductWarrantyAccrualWarrantiesIssued":{"label":"Standard Product Warranty Accrual, Increase for Warranties Issued","description":"Amount of increase in the standard product warranty accrual from warranties issued. Excludes extended product warranties.","units":{"USD":[{"start":"2010-05-01","end":"2011-04-30","val":2695000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2011-05-01","end":"2011-07-31","val":1035000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":1972000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2012-01-31","val":3043000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-04-30","val":4235000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2012-07-31","val":1711000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":1711000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":3034000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":3034000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":4389000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":5880000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":1462000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":3147000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"}]}},"StockGrantedDuringPeriodSharesSharebasedCompensation":{"label":"Stock Granted During Period, Shares, Share-based Compensation (Deprecated 2011-01-31)","description":"Number of shares of stock (or other type of equity) granted during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP).","units":{"shares":[{"start":"2009-05-01","end":"2010-04-30","val":223000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2009"},{"start":"2010-05-01","end":"2011-04-30","val":451000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010"}]}},"StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest":{"label":"Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest","description":"Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.","units":{"USD":[{"end":"2008-04-30","val":86064000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008Q1I"},{"end":"2009-04-30","val":62711000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2009-04-30","val":62711000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2009-04-30","val":62711000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2009-04-30","val":62711000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2009-04-30","val":62711000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009Q1I"},{"end":"2009-07-31","val":54971000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2I"},{"end":"2009-10-31","val":74355000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2009Q3I"},{"end":"2010-01-31","val":74785000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2009Q4I"},{"end":"2010-04-30","val":75624000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2010-04-30","val":75624000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2010-04-30","val":75624000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2010-04-30","val":75624000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2010-04-30","val":75624000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2010-04-30","val":75624000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010Q1I"},{"end":"2010-04-30","val":75624000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2010-04-30","val":75624000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2010-04-30","val":75624000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2010-07-31","val":75149000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2I"},{"end":"2010-07-31","val":75149000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2010-10-31","val":76279000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2010-10-31","val":76279000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2010Q3I"},{"end":"2011-01-31","val":78670000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2011-01-31","val":78670000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2010Q4I"},{"end":"2011-04-30","val":79454000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2011-04-30","val":79454000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2011-04-30","val":79454000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011Q1I"},{"end":"2011-04-30","val":79454000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2011-04-30","val":79454000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2011-04-30","val":79454000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2011-04-30","val":79454000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2011-04-30","val":79454000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2011-04-30","val":79454000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2011-07-31","val":80445000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2011-07-31","val":80445000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2I"},{"end":"2011-10-31","val":83099000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2011Q3I"},{"end":"2011-10-31","val":83099000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2012-01-31","val":86594000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2011Q4I"},{"end":"2012-01-31","val":86594000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2012-04-30","val":91048000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2012Q1I"},{"end":"2012-04-30","val":91048000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10"},{"end":"2012-04-30","val":91048000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2012-04-30","val":91048000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":91048000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":91048000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-04-30","val":91048000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2012-07-31","val":92230000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2I"},{"end":"2012-07-31","val":92230000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-10-31","val":95598000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2012Q3I"},{"end":"2012-10-31","val":95598000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2013-01-31","val":98934000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":96734000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":96734000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10"},{"end":"2013-04-30","val":96734000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2013-07-31","val":95482000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2013-10-31","val":99312000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"StockIssuedDuringPeriodValueNewIssues":{"label":"Stock Issued During Period, Value, New Issues","description":"Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.","units":{"USD":[{"start":"2009-05-01","end":"2009-10-31","val":17207000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":17199000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":17199000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":17199000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"}]}},"StockIssuedDuringPeriodValueShareBasedCompensation":{"label":"Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture","description":"Value, after forfeiture, of shares issued under share-based payment arrangement. Excludes employee stock ownership plan (ESOP).","units":{"USD":[{"start":"2008-05-01","end":"2009-04-30","val":1628000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":365000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":1078000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":1497000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":1865000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":1865000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":342000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":342000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":863000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":863000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-05-01","end":"2011-01-31","val":1746000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":1746000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-05-01","end":"2011-04-30","val":2140000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":2140000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":2140000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":189000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":189000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":1032000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":1032000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":1537000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":1537000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":3146000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":3146000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":350000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":350000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":989000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":989000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":1513000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-05-01","end":"2013-04-30","val":1865000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":-131000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":632000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"}]}},"SubordinatedDebtCurrent":{"label":"Subordinated Debt, Current","description":"The portion of the carrying value of subordinated debt as of the balance sheet date that is scheduled to be repaid within one year or in the normal operating cycle, if longer. Subordinated debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets.","units":{"USD":[{"end":"2012-04-30","val":0,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q1I"},{"end":"2012-04-30","val":0,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-10-31","val":10059000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":10305000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":10559000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":10559000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10"},{"end":"2013-07-31","val":10820000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2013-10-31","val":0,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"SubordinatedLongTermDebt":{"label":"Subordinated Long-term Debt, Noncurrent","description":"Carrying value as of the balance sheet date of collateralized/uncollateralized debt obligation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. Subordinated debt places a lender in a lien position behind the primary lender of the company.","units":{"USD":[{"end":"2010-04-30","val":7954000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010Q1I"},{"end":"2010-04-30","val":7954000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2010-04-30","val":7954000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2010-04-30","val":7954000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2010-07-31","val":8138000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2010Q2I"},{"end":"2010-10-31","val":8327000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2010Q3I"},{"end":"2011-01-31","val":8522000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2010Q4I"},{"end":"2011-04-30","val":8723000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2011-04-30","val":8723000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2011-04-30","val":8723000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011Q1I"},{"end":"2011-04-30","val":8723000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2011-04-30","val":8723000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2011-07-31","val":8930000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2011Q2I"},{"end":"2011-10-31","val":9143000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2011Q3I"},{"end":"2012-01-31","val":9362000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2011Q4I"},{"end":"2012-04-30","val":9587000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":9587000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":9587000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":9587000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-04-30","val":9587000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2012-07-31","val":9820000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2012-10-31","val":0,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":0,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":0,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1I"}]}},"TaxesPayableCurrent":{"label":"Taxes Payable, Current","description":"Carrying value as of the balance sheet date of obligations incurred and payable for statutory income, sales, use, payroll, excise, real, property and other taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).","units":{"USD":[{"end":"2010-04-30","val":1329000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2010Q1I"},{"end":"2010-04-30","val":1329000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"end":"2010-04-30","val":1329000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"end":"2010-04-30","val":1329000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"end":"2010-07-31","val":1438000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2010Q2I"},{"end":"2010-10-31","val":2273000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2010Q3I"},{"end":"2011-01-31","val":2555000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2010Q4I"},{"end":"2011-04-30","val":2378000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"end":"2011-04-30","val":2378000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"end":"2011-04-30","val":2378000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2011Q1I"},{"end":"2011-04-30","val":2378000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"end":"2011-04-30","val":2378000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"end":"2011-07-31","val":2590000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2011Q2I"},{"end":"2011-10-31","val":3051000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2011Q3I"},{"end":"2012-01-31","val":4363000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2011Q4I"},{"end":"2012-04-30","val":3735000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2012-04-30","val":3735000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"end":"2012-04-30","val":3735000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":3735000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-04-30","val":3735000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"end":"2012-07-31","val":3220000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2012-10-31","val":2713000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":2386000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":3908000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":3908000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10"},{"end":"2013-04-30","val":3908000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30"},{"end":"2013-07-31","val":3700000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2013-10-31","val":3612000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"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":"2013-04-30","val":15700000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1I"}]}},"UnrecognizedTaxBenefits":{"label":"Unrecognized Tax Benefits","description":"Amount of unrecognized tax benefits.","units":{"USD":[{"end":"2010-04-30","val":9247000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010Q1I"},{"end":"2011-04-30","val":9796000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011Q1I"},{"end":"2012-04-30","val":6766000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012Q1I"},{"end":"2013-04-30","val":7258000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1I"}]}},"UnrecognizedTaxBenefitsDecreasesResultingFromForeignCurrencyTranslation":{"label":"Unrecognized Tax Benefits, Decrease Resulting from Foreign Currency Translation","description":"Amount of decrease in unrecognized tax benefits resulting from foreign currency translation.","units":{"USD":[{"start":"2011-05-01","end":"2012-04-30","val":47000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":9000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"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":"2011-05-01","end":"2012-04-30","val":3130000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":54000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"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":"2010-05-01","end":"2011-04-30","val":102000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":114000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":140000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"UnrecognizedTaxBenefitsIncreasesResultingFromForeignCurrencyTranslation":{"label":"Unrecognized Tax Benefits, Increase Resulting from Foreign Currency Translation","description":"Amount of increase in unrecognized tax benefits resulting from foreign currency translation.","units":{"USD":[{"start":"2010-05-01","end":"2011-04-30","val":87000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"}]}},"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":"2010-05-01","end":"2011-04-30","val":360000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":33000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":415000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"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":"2013-04-30","val":7300000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2013Q1I"}]}},"ValuationAllowanceAmount":{"label":"Valuation Allowance, Amount (Deprecated 2013-01-31)","description":"The amount of the valuation allowance recorded as of the balance sheet date pertaining to the specified deferred tax asset for which an assessment was made that it is more likely than not that all or a portion of such deferred tax asset will not be realized through related deductions on future tax returns.","units":{"USD":[{"end":"2012-04-30","val":7900000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q1I"},{"end":"2012-04-30","val":7900000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"end":"2012-04-30","val":7900000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"end":"2012-07-31","val":7700000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2I"},{"end":"2012-10-31","val":7800000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"},{"end":"2013-01-31","val":7600000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4I"},{"end":"2013-04-30","val":7600000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q1I"},{"end":"2013-04-30","val":7600000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10"},{"end":"2013-07-31","val":7600000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2I"},{"end":"2013-10-31","val":7600000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3I"}]}},"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":"2010-05-01","end":"2011-04-30","val":351000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":1830000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":268000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"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":"2010-05-01","end":"2011-04-30","val":12000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2011-05-01","end":"2012-04-30","val":0,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2012-05-01","end":"2013-04-30","val":748000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}},"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":"2008-05-01","end":"2009-04-30","val":37627000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-10-31","val":40295000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-08-01","end":"2009-10-31","val":43158000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2009Q3"},{"start":"2009-05-01","end":"2010-01-31","val":42490000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-11-01","end":"2010-01-31","val":46879000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2009Q4"},{"start":"2009-05-01","end":"2010-04-30","val":43567000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":43567000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":47044000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-10-31","val":47102000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":47102000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-08-01","end":"2010-10-31","val":47160000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-08-01","end":"2010-10-31","val":47160000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2010Q3"},{"start":"2010-05-01","end":"2011-01-31","val":47174000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":47174000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-11-01","end":"2011-01-31","val":47312000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-11-01","end":"2011-01-31","val":47312000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2010Q4"},{"start":"2010-05-01","end":"2011-04-30","val":47228000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":47228000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":47228000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":47541000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":47541000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":47666000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":47666000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-08-01","end":"2011-10-31","val":47800000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2011Q3"},{"start":"2011-08-01","end":"2011-10-31","val":47800000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":47730000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":47730000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-11-01","end":"2012-01-31","val":47857000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2011Q4"},{"start":"2011-11-01","end":"2012-01-31","val":47857000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":47766000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":47766000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":48039000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":48039000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":48941000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":48941000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-08-01","end":"2012-10-31","val":48904000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2012Q3"},{"start":"2012-08-01","end":"2012-10-31","val":48904000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":49053000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-11-01","end":"2013-01-31","val":49141000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4"},{"start":"2012-05-01","end":"2013-04-30","val":49060000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":48528000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":49118000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2013-08-01","end":"2013-10-31","val":49307000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3"}]}},"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":"2008-05-01","end":"2009-04-30","val":37627000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-10-31","val":40295000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-08-01","end":"2009-10-31","val":42841000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03","frame":"CY2009Q3"},{"start":"2009-05-01","end":"2010-01-31","val":42490000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-11-01","end":"2010-01-31","val":46879000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04","frame":"CY2009Q4"},{"start":"2009-05-01","end":"2010-04-30","val":43567000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":43567000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":47044000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-10-31","val":47102000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":47102000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-08-01","end":"2010-10-31","val":47160000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-08-01","end":"2010-10-31","val":47160000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09","frame":"CY2010Q3"},{"start":"2010-05-01","end":"2011-01-31","val":47168000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":47168000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-11-01","end":"2011-01-31","val":47301000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-11-01","end":"2011-01-31","val":47301000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02","frame":"CY2010Q4"},{"start":"2010-05-01","end":"2011-04-30","val":47216000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":47216000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":47216000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":47532000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":47532000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":47666000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2011-05-01","end":"2011-10-31","val":47666000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-08-01","end":"2011-10-31","val":47800000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10","frame":"CY2011Q3"},{"start":"2011-08-01","end":"2011-10-31","val":47800000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":47730000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2011-05-01","end":"2012-01-31","val":47730000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-11-01","end":"2012-01-31","val":47857000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2011Q4"},{"start":"2011-11-01","end":"2012-01-31","val":47857000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":47766000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":47766000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":48039000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2012-07-31","val":48039000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30"},{"start":"2012-05-01","end":"2012-10-31","val":48203000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2012-05-01","end":"2012-10-31","val":48203000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-08-01","end":"2012-10-31","val":48368000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2012Q3"},{"start":"2012-08-01","end":"2012-10-31","val":48368000,"accn":"0000713002-12-000039","fy":2013,"fp":"Q2","form":"10-Q","filed":"2012-12-10"},{"start":"2012-05-01","end":"2013-01-31","val":48273000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12"},{"start":"2012-11-01","end":"2013-01-31","val":48413000,"accn":"0000713002-13-000005","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-03-12","frame":"CY2012Q4"},{"start":"2012-05-01","end":"2013-04-30","val":48312000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"},{"start":"2013-05-01","end":"2013-07-31","val":48528000,"accn":"0000713002-13-000040","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-09-10","frame":"CY2013Q2"},{"start":"2013-05-01","end":"2013-10-31","val":48755000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04"},{"start":"2013-08-01","end":"2013-10-31","val":48981000,"accn":"0000713002-13-000046","fy":2014,"fp":"Q2","form":"10-Q","filed":"2013-12-04","frame":"CY2013Q3"}]}},"WriteOffOfDeferredDebtIssuanceCost":{"label":"Write off of Deferred Debt Issuance Cost","description":"Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.","units":{"USD":[{"start":"2008-05-01","end":"2009-04-30","val":879000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24","frame":"CY2008"},{"start":"2009-05-01","end":"2009-07-31","val":253000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08","frame":"CY2009Q2"},{"start":"2009-05-01","end":"2009-10-31","val":253000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2009-05-01","end":"2010-01-31","val":253000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2009-05-01","end":"2010-04-30","val":253000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2009-05-01","end":"2010-04-30","val":253000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28","frame":"CY2009"},{"start":"2010-05-01","end":"2010-07-31","val":110000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02","frame":"CY2010Q2"},{"start":"2010-05-01","end":"2010-07-31","val":110000,"accn":"0000950123-10-084530","fy":2011,"fp":"Q1","form":"10-Q","filed":"2010-09-08"},{"start":"2010-05-01","end":"2010-10-31","val":231000,"accn":"0000950123-10-110548","fy":2011,"fp":"Q2","form":"10-Q","filed":"2010-12-03"},{"start":"2010-05-01","end":"2010-10-31","val":231000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2010-05-01","end":"2011-01-31","val":349000,"accn":"0001445305-11-000389","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-03-04"},{"start":"2010-05-01","end":"2011-01-31","val":349000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2010-05-01","end":"2011-04-30","val":402000,"accn":"0001445305-11-001363","fy":2011,"fp":"FY","form":"10-K","filed":"2011-06-24"},{"start":"2010-05-01","end":"2011-04-30","val":402000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2010"},{"start":"2010-05-01","end":"2011-04-30","val":402000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2011-05-01","end":"2011-07-31","val":18000,"accn":"0001445305-11-002689","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-09-02"},{"start":"2011-05-01","end":"2011-07-31","val":18000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2011Q2"},{"start":"2011-05-01","end":"2011-10-31","val":19000,"accn":"0000713002-11-000011","fy":2012,"fp":"Q2","form":"10-Q","filed":"2011-12-09"},{"start":"2011-05-01","end":"2012-01-31","val":28000,"accn":"0000713002-12-000009","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-03-02"},{"start":"2011-05-01","end":"2012-04-30","val":38000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2011"},{"start":"2011-05-01","end":"2012-04-30","val":38000,"accn":"0000713002-12-000016","fy":2012,"fp":"FY","form":"10-K","filed":"2012-06-28"},{"start":"2012-05-01","end":"2012-07-31","val":9000,"accn":"0000713002-12-000027","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-08-30","frame":"CY2012Q2"},{"start":"2012-05-01","end":"2013-04-30","val":35000,"accn":"0000713002-13-000024","fy":2013,"fp":"FY","form":"10-K","filed":"2013-07-30","frame":"CY2012"}]}}}}}