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This element is used when state law does not recognize treasury stock.","units":{"shares":[{"start":"2011-03-27","end":"2011-03-28","val":60000000,"accn":"0001435936-13-000149","fy":2012,"fp":"FY","form":"10-K/A","filed":"2013-09-06"},{"start":"2011-03-27","end":"2011-03-28","val":60000000,"accn":"0001435936-13-000144","fy":2012,"fp":"Q3","form":"10-Q/A","filed":"2013-09-05"},{"start":"2011-03-27","end":"2011-03-28","val":60000000,"accn":"0001435936-13-000142","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2013-09-05"},{"start":"2011-03-27","end":"2011-03-28","val":60000000,"accn":"0001435936-13-000130","fy":2012,"fp":"Q1","form":"10-Q/A","filed":"2013-09-03"},{"start":"2011-03-27","end":"2011-03-28","val":60000000,"accn":"0001435936-13-000127","fy":2011,"fp":"FY","form":"10-K/A","filed":"2013-09-03"},{"start":"2011-03-27","end":"2011-03-28","val":60000000,"accn":"0001435936-13-000126","fy":2011,"fp":"FY","form":"10-K/A","filed":"2013-08-30"}]}},"StockRepurchasedDuringPeriodValue":{"label":"Stock Repurchased During Period, Value","description":"Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.","units":{"USD":[{"start":"2011-03-27","end":"2011-03-28","val":37500,"accn":"0001435936-13-000149","fy":2012,"fp":"FY","form":"10-K/A","filed":"2013-09-06"},{"start":"2011-03-27","end":"2011-03-28","val":37500,"accn":"0001435936-13-000144","fy":2012,"fp":"Q3","form":"10-Q/A","filed":"2013-09-05"},{"start":"2011-03-27","end":"2011-03-28","val":37500,"accn":"0001435936-13-000142","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2013-09-05"},{"start":"2011-03-27","end":"2011-03-28","val":37500,"accn":"0001435936-13-000130","fy":2012,"fp":"Q1","form":"10-Q/A","filed":"2013-09-03"},{"start":"2011-03-27","end":"2011-03-28","val":37500,"accn":"0001435936-13-000127","fy":2011,"fp":"FY","form":"10-K/A","filed":"2013-09-03"},{"start":"2011-03-27","end":"2011-03-28","val":37500,"accn":"0001435936-13-000126","fy":2011,"fp":"FY","form":"10-K/A","filed":"2013-08-30"}]}},"UnrecognizedTaxBenefits":{"label":"Unrecognized Tax Benefits","description":"Amount of unrecognized tax benefits.","units":{"USD":[{"end":"2011-05-31","val":0,"accn":"0001435936-13-000127","fy":2011,"fp":"FY","form":"10-K/A","filed":"2013-09-03","frame":"CY2011Q2I"},{"end":"2011-05-31","val":0,"accn":"0001435936-13-000126","fy":2011,"fp":"FY","form":"10-K/A","filed":"2013-08-30"}]}},"UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued":{"label":"Unrecognized Tax Benefits, Income Tax Penalties Accrued","description":"Amount of statutory penalties accrued for a tax position claimed or expected to be claimed by the entity, in its tax return.","units":{"USD":[{"end":"2013-05-31","val":0,"accn":"0001435936-14-000074","fy":2014,"fp":"FY","form":"10-K","filed":"2014-09-12","frame":"CY2013Q2I"},{"end":"2014-05-31","val":0,"accn":"0001435936-14-000074","fy":2014,"fp":"FY","form":"10-K","filed":"2014-09-12"},{"end":"2014-05-31","val":0,"accn":"0001435936-14-000083","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-10-20","frame":"CY2014Q2I"},{"end":"2014-08-31","val":0,"accn":"0001435936-14-000083","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-10-20","frame":"CY2014Q3I"}]}},"UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued":{"label":"Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued","description":"Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.","units":{"USD":[{"end":"2011-08-31","val":0,"accn":"0001435936-13-000130","fy":2012,"fp":"Q1","form":"10-Q/A","filed":"2013-09-03","frame":"CY2011Q3I"},{"end":"2011-11-30","val":0,"accn":"0001435936-13-000142","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2013-09-05","frame":"CY2011Q4I"},{"end":"2012-02-29","val":0,"accn":"0001435936-13-000144","fy":2012,"fp":"Q3","form":"10-Q/A","filed":"2013-09-05","frame":"CY2012Q1I"},{"end":"2012-05-31","val":0,"accn":"0001435936-13-000149","fy":2012,"fp":"FY","form":"10-K/A","filed":"2013-09-06","frame":"CY2012Q2I"},{"end":"2012-08-31","val":0,"accn":"0001435936-13-000152","fy":2013,"fp":"Q1","form":"10-Q/A","filed":"2013-09-09","frame":"CY2012Q3I"},{"end":"2012-11-30","val":0,"accn":"0001435936-14-000029","fy":2013,"fp":"Q2","form":"10-Q/A","filed":"2014-01-17","frame":"CY2012Q4I"},{"end":"2013-02-28","val":0,"accn":"0001435936-14-000037","fy":2013,"fp":"Q3","form":"10-Q/A","filed":"2014-01-21","frame":"CY2013Q1I"},{"end":"2013-05-31","val":0,"accn":"0001435936-13-000170","fy":2013,"fp":"FY","form":"10-K/A","filed":"2013-09-11","frame":"CY2013Q2I"},{"end":"2013-08-31","val":0,"accn":"0001435936-13-000189","fy":2014,"fp":"Q1","form":"10-Q","filed":"2013-10-11","frame":"CY2013Q3I"},{"end":"2013-11-30","val":0,"accn":"0001435936-14-000045","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-01-21","frame":"CY2013Q4I"},{"end":"2014-02-28","val":0,"accn":"0001435936-14-000059","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-04-14","frame":"CY2014Q1I"}]}},"WeightedAverageNumberOfSharesCommonStockSubjectToRepurchaseOrCancellation":{"label":"Weighted Average Number of Shares, Common Stock Subject to Repurchase or Cancellation","description":"Number of shares of common stock subject to repurchase or cancellation determined by relating the portion of time within a reporting period that these shares have been outstanding to the total time in that period. Common stock subject to repurchase are outstanding common shares that are contingently returnable (that is, subject to recall).","units":{"shares":[{"start":"2009-06-01","end":"2010-02-28","val":510416000,"accn":"0001435936-13-000124","fy":2011,"fp":"Q3","form":"10-Q/A","filed":"2013-08-30"},{"start":"2009-06-01","end":"2010-02-28","val":510416000,"accn":"0001435936-13-000103","fy":2011,"fp":"Q3","form":"10-Q/A","filed":"2013-08-23"},{"start":"2009-12-01","end":"2010-02-28","val":510416000,"accn":"0001435936-13-000124","fy":2011,"fp":"Q3","form":"10-Q/A","filed":"2013-08-30","frame":"CY2010Q1"},{"start":"2009-12-01","end":"2010-02-28","val":510416000,"accn":"0001435936-13-000103","fy":2011,"fp":"Q3","form":"10-Q/A","filed":"2013-08-23"},{"start":"2010-06-01","end":"2011-02-28","val":511105533,"accn":"0001435936-13-000124","fy":2011,"fp":"Q3","form":"10-Q/A","filed":"2013-08-30"},{"start":"2010-06-01","end":"2011-02-28","val":511105533,"accn":"0001435936-13-000103","fy":2011,"fp":"Q3","form":"10-Q/A","filed":"2013-08-23"},{"start":"2010-12-01","end":"2011-02-28","val":512472583,"accn":"0001435936-13-000124","fy":2011,"fp":"Q3","form":"10-Q/A","filed":"2013-08-30","frame":"CY2011Q1"},{"start":"2010-12-01","end":"2011-02-28","val":512472583,"accn":"0001435936-13-000103","fy":2011,"fp":"Q3","form":"10-Q/A","filed":"2013-08-23"}]}},"WeightedAverageNumberOfSharesIssuedBasic":{"label":"Weighted Average Number of Shares Issued, Basic","description":"This element represents the weighted average total number of shares issued throughout the period including the first (beginning balance outstanding) and last (ending balance outstanding) day of the period before considering any reductions (for instance, shares held in treasury) to arrive at the weighted average number of shares outstanding. Weighted average relates to the portion of time within a reporting period that common shares have been issued and outstanding to the total time in that period. Such concept is used in determining the weighted average number of shares outstanding for purposes of calculating earnings per share (basic).","units":{"shares":[{"start":"2009-06-01","end":"2009-08-31","val":510416000,"accn":"0001435936-13-000111","fy":2011,"fp":"Q1","form":"10-Q/A","filed":"2013-08-29","frame":"CY2009Q3"},{"start":"2009-06-01","end":"2009-08-31","val":510416000,"accn":"0001435936-13-000102","fy":2011,"fp":"Q1","form":"10-Q/A","filed":"2013-08-23"},{"start":"2009-06-01","end":"2009-08-31","val":510416000,"accn":"0001435936-13-000100","fy":2011,"fp":"Q1","form":"10-Q/A","filed":"2013-08-23"},{"start":"2009-06-01","end":"2009-11-30","val":510416000,"accn":"0001435936-13-000123","fy":2011,"fp":"Q2","form":"10-Q/A","filed":"2013-08-30"},{"start":"2009-06-01","end":"2009-11-30","val":510416000,"accn":"0001435936-13-000101","fy":2011,"fp":"Q2","form":"10-Q/A","filed":"2013-08-23"},{"start":"2009-09-01","end":"2009-11-30","val":510416000,"accn":"0001435936-13-000123","fy":2011,"fp":"Q2","form":"10-Q/A","filed":"2013-08-30","frame":"CY2009Q4"},{"start":"2009-09-01","end":"2009-11-30","val":510416000,"accn":"0001435936-13-000101","fy":2011,"fp":"Q2","form":"10-Q/A","filed":"2013-08-23"},{"start":"2010-06-01","end":"2010-08-31","val":510416000,"accn":"0001435936-13-000111","fy":2011,"fp":"Q1","form":"10-Q/A","filed":"2013-08-29","frame":"CY2010Q3"},{"start":"2010-06-01","end":"2010-08-31","val":510416000,"accn":"0001435936-13-000102","fy":2011,"fp":"Q1","form":"10-Q/A","filed":"2013-08-23"},{"start":"2010-06-01","end":"2010-08-31","val":510416000,"accn":"0001435936-13-000100","fy":2011,"fp":"Q1","form":"10-Q/A","filed":"2013-08-23"},{"start":"2010-06-01","end":"2010-11-30","val":510433213,"accn":"0001435936-13-000123","fy":2011,"fp":"Q2","form":"10-Q/A","filed":"2013-08-30"},{"start":"2010-06-01","end":"2010-11-30","val":510433213,"accn":"0001435936-13-000101","fy":2011,"fp":"Q2","form":"10-Q/A","filed":"2013-08-23"},{"start":"2010-09-01","end":"2010-11-30","val":510450615,"accn":"0001435936-13-000123","fy":2011,"fp":"Q2","form":"10-Q/A","filed":"2013-08-30","frame":"CY2010Q4"},{"start":"2010-09-01","end":"2010-11-30","val":510450615,"accn":"0001435936-13-000101","fy":2011,"fp":"Q2","form":"10-Q/A","filed":"2013-08-23"}]}}}}}