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lationAdjustmentNetOfTax":{"label":"Accumulated 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Equivalents, at Carrying Value","description":"Amount of 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":"2010-05-31","val":4319834,"accn":"0001445866-11-000019","fy":2012,"fp":"Q1","form":"10-Q/A","filed":"2011-10-26"},{"end":"2010-05-31","val":4319834,"accn":"0001445866-12-000022","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-01-11"},{"end":"2010-05-31","val":4319834,"accn":"0001445866-12-000225","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-04-16","frame":"CY2010Q2I"},{"end":"2010-08-31","val":4545009,"accn":"0001445866-11-000019","fy":2012,"fp":"Q1","form":"10-Q/A","filed":"2011-10-26","frame":"CY2010Q3I"},{"end":"2010-11-30","val":5089573,"accn":"0001445866-12-000022","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-01-11","frame":"CY2010Q4I"},{"end":"2011-02-28","val":4892355,"accn":"0001445866-12-000225","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-04-16","frame":"CY2011Q1I"},{"end":"2011-05-31","val":4580189,"accn":"0001445866-11-000019","fy":2012,"fp":"Q1","form":"10-Q/A","filed":"2011-10-26"},{"end":"2011-05-31","val":4580189,"accn":"0001445866-12-000022","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-01-11"},{"end":"2011-05-31","val":4580189,"accn":"0001445866-12-000225","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-04-16"},{"end":"2011-05-31","val":4580189,"accn":"0001445866-12-000697","fy":2012,"fp":"FY","form":"10-K","filed":"2012-08-29"},{"end":"2011-05-31","val":4580189,"accn":"0001445866-12-000705","fy":2012,"fp":"FY","form":"10-K/A","filed":"2012-08-31","frame":"CY2011Q2I"},{"end":"2011-08-31","val":4040665,"accn":"0001445866-11-000019","fy":2012,"fp":"Q1","form":"10-Q/A","filed":"2011-10-26","frame":"CY2011Q3I"},{"end":"2011-11-30","val":3207182,"accn":"0001445866-12-000022","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-01-11","frame":"CY2011Q4I"},{"end":"2012-02-29","val":3468796,"accn":"0001445866-12-000225","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-04-16","frame":"CY2012Q1I"},{"end":"2012-05-31","val":3520248,"accn":"0001445866-12-000697","fy":2012,"fp":"FY","form":"10-K","filed":"2012-08-29"},{"end":"2012-05-31","val":3520248,"accn":"0001445866-12-000705","fy":2012,"fp":"FY","form":"10-K/A","filed":"2012-08-31"},{"end":"2012-05-31","val":3520248,"accn":"0001445866-12-000779","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-10-15"},{"end":"2012-05-31","val":3520248,"accn":"0001445866-13-000050","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-01-17"},{"end":"2012-05-31","val":3520248,"accn":"0001445866-13-000444","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-04-22"},{"end":"2012-05-31","val":2651786,"accn":"0001445866-13-001079","fy":2013,"fp":"FY","form":"10-K","filed":"2013-09-13"},{"end":"2012-05-31","val":2651786,"accn":"0001445866-14-000811","fy":2013,"fp":"FY","form":"10-K","filed":"2014-06-30","frame":"CY2012Q2I"},{"end":"2012-08-31","val":3250611,"accn":"0001445866-12-000779","fy":2013,"fp":"Q1","form":"10-Q","filed":"2012-10-15","frame":"CY2012Q3I"},{"end":"2012-11-30","val":3386374,"accn":"0001445866-13-000050","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-01-17","frame":"CY2012Q4I"},{"end":"2013-02-28","val":4108534,"accn":"0001445866-13-000444","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-04-22","frame":"CY2013Q1I"},{"end":"2013-05-31","val":4392542,"accn":"0001445866-13-001079","fy":2013,"fp":"FY","form":"10-K","filed":"2013-09-13"},{"end":"2013-05-31","val":4392542,"accn":"0001445866-14-000811","fy":2013,"fp":"FY","form":"10-K","filed":"2014-06-30","frame":"CY2013Q2I"}]}},"CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations":{"label":"Cash Provided by (Used in) Financing Activities, Discontinued Operations","description":"Amount of cash inflow (outflow) of financing activities of 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":"2012-06-01","end":"2013-05-31","val":0,"accn":"0001445866-14-001108","fy":2014,"fp":"FY","form":"10-K","filed":"2014-09-02","frame":"CY2012"},{"start":"2013-06-01","end":"2014-05-31","val":0,"accn":"0001445866-14-001108","fy":2014,"fp":"FY","form":"10-K","filed":"2014-09-02","frame":"CY2013"}]}},"CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations":{"label":"Cash Provided by (Used in) Investing Activities, Discontinued Operations","description":"Amount of cash inflow (outflow) of investing activities of discontinued operations. 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"},{"end":"2015-05-31","val":361780,"accn":"0001445866-16-001519","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-01-14"},{"end":"2015-05-31","val":361780,"accn":"0001445866-16-001958","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-04-19"},{"end":"2015-05-31","val":361780,"accn":"0001445866-16-002525","fy":2016,"fp":"FY","form":"10-K","filed":"2016-08-16","frame":"CY2015Q2I"},{"end":"2015-08-31","val":606166,"accn":"0001445866-15-001169","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-10-20","frame":"CY2015Q3I"},{"end":"2015-11-30","val":494803,"accn":"0001445866-16-001519","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-01-14","frame":"CY2015Q4I"},{"end":"2016-02-29","val":558669,"accn":"0001445866-16-001958","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-04-19"},{"end":"2016-04-30","val":264982,"accn":"0001445866-16-002525","fy":2016,"fp":"FY","form":"10-K","filed":"2016-08-16"},{"end":"2016-04-30","val":264982,"accn":"0001445866-16-002654","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-09-23","frame":"CY2016Q1I"},{"end":"2016-07-31","val":203968,"accn":"0001445866-16-002654","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-09-23","frame":"CY2016Q2I"}]}},"OtherThanTemporaryImpairmentLossesInvestmentsAvailableforsaleSecurities":{"label":"Other 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Amount excludes temporary equity. Alternate caption for the concept is permanent equity.","units":{"USD":[{"end":"2013-05-31","val":9738274,"accn":"0001445866-14-000363","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-04-21"},{"end":"2013-05-31","val":9738274,"accn":"0001445866-14-000812","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-06-30"},{"end":"2013-05-31","val":9738274,"accn":"0001445866-14-001108","fy":2014,"fp":"FY","form":"10-K","filed":"2014-09-02"},{"end":"2013-05-31","val":9738274,"accn":"0001445866-15-001069","fy":2015,"fp":"FY","form":"10-K","filed":"2015-09-16","frame":"CY2013Q2I"},{"end":"2014-02-28","val":10604151,"accn":"0001445866-14-000363","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-04-21"},{"end":"2014-02-28","val":7270575,"accn":"0001445866-14-000812","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-06-30","frame":"CY2014Q1I"},{"end":"2014-05-31","val":7709808,"accn":"0001445866-14-001108","fy":2014,"fp":"FY","form":"10-K","filed":"2014-09-02"},{"end":"2014-05-31","val":7709808,"accn":"0001445866-14-001291","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-10-20"},{"end":"2014-05-31","val":7709808,"accn":"0001445866-15-000050","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-01-20"},{"end":"2014-05-31","val":7709808,"accn":"0001445866-15-000424","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-04-14"},{"end":"2014-05-31","val":7709808,"accn":"0001445866-15-001069","fy":2015,"fp":"FY","form":"10-K","filed":"2015-09-16"},{"end":"2014-05-31","val":7709808,"accn":"0001445866-16-002525","fy":2016,"fp":"FY","form":"10-K","filed":"2016-08-16","frame":"CY2014Q2I"},{"end":"2014-08-31","val":8620435,"accn":"0001445866-14-001291","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-10-20","frame":"CY2014Q3I"},{"end":"2014-11-30","val":8488126,"accn":"0001445866-15-000050","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-01-20","frame":"CY2014Q4I"},{"end":"2015-02-28","val":8085276,"accn":"0001445866-15-000424","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-04-14","frame":"CY2015Q1I"},{"end":"2015-05-31","val":7062493,"accn":"0001445866-15-001069","fy":2015,"fp":"FY","form":"10-K","filed":"2015-09-16"},{"end":"2015-05-31","val":7062493,"accn":"0001445866-15-001169","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-10-20"},{"end":"2015-05-31","val":7062493,"accn":"0001445866-16-001519","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-01-14"},{"end":"2015-05-31","val":7062493,"accn":"0001445866-16-001958","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-04-19"},{"end":"2015-05-31","val":7062493,"accn":"0001445866-16-002525","fy":2016,"fp":"FY","form":"10-K","filed":"2016-08-16","frame":"CY2015Q2I"},{"end":"2015-08-31","val":6744148,"accn":"0001445866-15-001169","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-10-20","frame":"CY2015Q3I"},{"end":"2015-11-30","val":6495717,"accn":"0001445866-16-001519","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-01-14","frame":"CY2015Q4I"},{"end":"2016-02-29","val":5824509,"accn":"0001445866-16-001958","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-04-19"},{"end":"2016-04-30","val":2177418,"accn":"0001445866-16-002525","fy":2016,"fp":"FY","form":"10-K","filed":"2016-08-16"},{"end":"2016-04-30","val":2177418,"accn":"0001445866-16-002654","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-09-23","frame":"CY2016Q1I"},{"end":"2016-07-31","val":2003516,"accn":"0001445866-16-002654","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-09-23","frame":"CY2016Q2I"}]}},"TaxesPayable":{"label":"Taxes Payable (Deprecated 2009-01-31)","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. 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