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It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits are not generally reported as cash and cash 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Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes.","units":{"USD":[{"start":"2009-06-01","end":"2010-05-31","val":2081690,"accn":"0001193125-12-047943","fy":2011,"fp":"FY","form":"10-KT","filed":"2012-02-09"},{"start":"2009-06-01","end":"2010-05-31","val":2082000,"accn":"0001193125-13-051966","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-12","frame":"CY2009"},{"start":"2010-06-01","end":"2010-08-31","val":1268869,"accn":"0001193125-11-272816","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-10-17","frame":"CY2010Q3"},{"start":"2010-06-01","end":"2010-11-30","val":997000,"accn":"0001193125-14-048240","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-12"},{"start":"2010-12-01","end":"2011-02-28","val":7667000,"accn":"0001193125-12-155253","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-04-09","frame":"CY2011Q1"},{"start":"2010-06-01","end":"2011-05-31","val":103905694,"accn":"0001193125-12-047943","fy":2011,"fp":"FY","form":"10-KT","filed":"2012-02-09"},{"start":"2010-06-01","end":"2011-05-31","val":103905000,"accn":"0001193125-13-051966","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-12"},{"start":"2010-06-01","end":"2011-05-31","val":103905000,"accn":"0001193125-14-048240","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-12","frame":"CY2010"},{"start":"2010-12-01","end":"2011-05-31","val":102908000,"accn":"0001193125-12-298791","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-07-10"},{"start":"2010-12-01","end":"2011-05-31","val":102908000,"accn":"0001193125-12-299922","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-07-11"},{"start":"2010-12-01","end":"2011-08-31","val":10646000,"accn":"0001193125-12-419943","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-10-10"},{"start":"2011-06-01","end":"2011-08-31","val":-92262232,"accn":"0001193125-11-272816","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-10-17","frame":"CY2011Q3"},{"start":"2010-12-01","end":"2011-11-30","val":10181000,"accn":"0001193125-14-048240","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-12","frame":"CY2011"},{"start":"2011-06-01","end":"2011-11-30","val":-92727579,"accn":"0001193125-12-047943","fy":2011,"fp":"FY","form":"10-KT","filed":"2012-02-09"},{"start":"2011-06-01","end":"2011-11-30","val":-92728000,"accn":"0001193125-13-051966","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-12"},{"start":"2011-06-01","end":"2011-11-30","val":-92727000,"accn":"0001193125-14-048240","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-12"},{"start":"2011-12-01","end":"2012-02-29","val":-1012000,"accn":"0001193125-12-155253","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-04-09"},{"start":"2011-12-01","end":"2012-02-29","val":-1012000,"accn":"0001193125-13-147735","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-04-09","frame":"CY2012Q1"},{"start":"2011-12-01","end":"2012-05-31","val":1634000,"accn":"0001193125-12-298791","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-07-10"},{"start":"2011-12-01","end":"2012-05-31","val":1634000,"accn":"0001193125-12-299922","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-07-11"},{"start":"2011-12-01","end":"2012-05-31","val":1634000,"accn":"0001193125-13-287312","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-07-10"},{"start":"2011-12-01","end":"2012-08-31","val":128000,"accn":"0001193125-12-419943","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-10-10"},{"start":"2011-12-01","end":"2012-08-31","val":128000,"accn":"0001193125-13-395340","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-10-09"},{"start":"2011-12-01","end":"2012-11-30","val":4846000,"accn":"0001193125-13-051966","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-12"},{"start":"2011-12-01","end":"2012-11-30","val":4845000,"accn":"0001193125-14-048240","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-12"},{"start":"2011-12-01","end":"2012-11-30","val":4845000,"accn":"0001193125-15-041538","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-10","frame":"CY2012"},{"start":"2012-12-01","end":"2013-02-28","val":-10471000,"accn":"0001193125-13-147735","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-04-09"},{"start":"2012-12-01","end":"2013-02-28","val":-10471000,"accn":"0001193125-14-137142","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-04-09","frame":"CY2013Q1"},{"start":"2012-12-01","end":"2013-05-31","val":-11806000,"accn":"0001193125-13-287312","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-07-10"},{"start":"2012-12-01","end":"2013-05-31","val":-11806000,"accn":"0001193125-14-264231","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-07-09"},{"start":"2012-12-01","end":"2013-08-31","val":-8021000,"accn":"0001193125-13-395340","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-10-09"},{"start":"2012-12-01","end":"2013-08-31","val":-8021000,"accn":"0001193125-14-362715","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-03"},{"start":"2012-12-01","end":"2013-11-30","val":-14184000,"accn":"0001193125-14-048240","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-12"},{"start":"2012-12-01","end":"2013-11-30","val":-14184000,"accn":"0001193125-15-041538","fy":2014,"fp":"FY","form":"10-K"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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":"2010-06-01","end":"2011-05-31","val":-5000,"accn":"0001193125-14-048240","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-12","frame":"CY2010"},{"start":"2011-06-01","end":"2011-11-30","val":-4000,"accn":"0001193125-14-048240","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-12"},{"start":"2011-12-01","end":"2012-08-31","val":5000,"accn":"0001193125-13-395340","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-10-09"},{"start":"2011-12-01","end":"2012-11-30","val":4000,"accn":"0001193125-14-048240","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-12"},{"start":"2011-12-01","end":"2012-11-30","val":4000,"accn":"0001193125-15-041538","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-10","frame":"CY2012"}]}},"CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations":{"label":"Cash Provided by (Used in) Investing Activities, Discontinued Operations","description":"Amount of cash inflow (outflow) of investing activities of discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.","units":{"USD":[{"start":"2009-06-01","end":"2010-05-31","val":-44623,"accn":"0001193125-12-047943","fy":2011,"fp":"FY","form":"10-KT","filed":"2012-02-09"},{"start":"2009-06-01","end":"2010-05-31","val":-45000,"accn":"0001193125-13-051966","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-12","frame":"CY2009"},{"start":"2010-06-01","end":"2011-05-31","val":2041155,"accn":"0001193125-12-047943","fy":2011,"fp":"FY","form":"10-KT","filed":"2012-02-09"},{"start":"2010-06-01","end":"2011-05-31","val":2041000,"accn":"0001193125-13-051966","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-12"},{"start":"2010-06-01","end":"2011-05-31","val":1895000,"accn":"0001193125-14-048240","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-12","frame":"CY2010"},{"start":"2011-06-01","end":"2011-11-30","val":-118000,"accn":"0001193125-14-048240","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-12"},{"start":"2011-12-01","end":"2012-05-31","val":384000,"accn":"0001193125-13-287312","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-07-10"},{"start":"2011-12-01","end":"2012-08-31","val":359000,"accn":"0001193125-13-395340","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-10-09"},{"start":"2011-12-01","end":"2012-11-30","val":358000,"accn":"0001193125-14-048240","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-12"},{"start":"2011-12-01","end":"2012-11-30","val":358000,"accn":"0001193125-15-041538","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-10","frame":"CY2012"},{"start":"2012-12-01","end":"2013-02-28","val":-17000,"accn":"0001193125-14-137142","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-04-09","frame":"CY2013Q1"},{"start":"2012-12-01","end":"2013-05-31","val":-17000,"accn":"0001193125-13-287312","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-07-10"},{"start":"2012-12-01","end":"2013-05-31","val":-17000,"accn":"0001193125-14-264231","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-07-09"},{"start":"2012-12-01","end":"2013-08-31","val":-17000,"accn":"0001193125-13-395340","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-10-09"},{"start":"2012-12-01","end":"2013-08-31","val":-17000,"accn":"0001193125-14-362715","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-03"},{"start":"2012-12-01","end":"2013-11-30","val":-17000,"accn":"0001193125-14-048240","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-12"},{"start":"2012-12-01","end":"2013-11-30","val":-17000,"accn":"0001193125-15-041538","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-10","frame":"CY2013"}]}},"CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations":{"label":"Cash Provided by (Used in) Operating Activities, Discontinued Operations","description":"Amount of cash inflow (outflow) of operating activities of discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing 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An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. 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period.","units":{"shares":[{"start":"2011-06-01","end":"2011-11-30","val":332550,"accn":"0001193125-12-419943","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-10-10"},{"start":"2011-06-01","end":"2011-11-30","val":332550,"accn":"0001193125-13-051966","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-12"},{"start":"2011-06-01","end":"2011-11-30","val":332550,"accn":"0001193125-14-048240","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-12"},{"start":"2011-12-01","end":"2012-11-30","val":0,"accn":"0001193125-15-041538","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-10","frame":"CY2012"},{"start":"2012-12-01","end":"2013-11-30","val":0,"accn":"0001193125-15-041538","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-10","frame":"CY2013"},{"start":"2013-12-01","end":"2014-11-30","val":0,"accn":"0001193125-15-041538","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-10"},{"start":"2013-12-01","end":"2014-11-30","val":0,"accn":"0001193125-15-122741","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-04-08"},{"start":"2013-12-01","end":"2014-11-30","val":0,"accn":"0001193125-15-247916","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-08"},{"start":"2013-12-01","end":"2014-11-30","val":0,"accn":"0001193125-15-340373","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-08"},{"start":"2013-12-01","end":"2014-11-30","val":0,"accn":"0001193125-16-490221","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-02","frame":"CY2014"},{"start":"2014-12-01","end":"2015-02-28","val":0,"accn":"0001193125-15-122741","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-04-08","frame":"CY2015Q1"},{"start":"2014-12-01","end":"2015-05-31","val":0,"accn":"0001193125-15-247916","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-08"},{"start":"2014-12-01","end":"2015-08-31","val":0,"accn":"0001193125-15-340373","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-08"},{"start":"2014-12-01","end":"2015-11-30","val":0,"accn":"0001193125-16-490221","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-02","frame":"CY2015"}]}},"StockIssuedDuringPeriodValueAcquisitions":{"label":"Stock Issued During Period, Value, Acquisitions","description":"Value of stock issued pursuant to acquisitions during the period.","units":{"USD":[{"start":"2009-06-01","end":"2010-05-31","val":1400000,"accn":"0001193125-13-051966","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-12","frame":"CY2009"},{"start":"2009-06-01","end":"2010-05-31","val":1400000,"accn":"0001193125-12-047943","fy":2011,"fp":"FY","form":"10-KT","filed":"2012-02-09"}]}},"StockIssuedDuringPeriodValueConversionOfConvertibleSecurities":{"label":"Stock Issued During Period, Value, Conversion of Convertible Securities","description":"The gross value of stock issued during the period upon the conversion of convertible securities.","units":{"USD":[{"start":"2010-06-01","end":"2011-05-31","val":3650000,"accn":"0001193125-14-048240","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-12","frame":"CY2010"},{"start":"2010-06-01","end":"2011-05-31","val":3650000,"accn":"0001193125-13-051966","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-12"}]}},"StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments":{"label":"Stock Issued During Period, Value, Conversion of Convertible Securities, Net of Adjustments","description":"The net amount of stock issued during the period upon the conversion of convertible securities, net of adjustments (for example, to additional paid in capital) including the write-off of an equity component recognized to record the convertible debt instrument as two separate components - a debt component and an equity component. This item is meant to disclose the value of shares issued on conversion of convertible securities that were recorded as two separate (debt and equity) components.","units":{"USD":[{"start":"2010-06-01","end":"2011-05-31","val":3650000,"accn":"0001193125-12-047943","fy":2011,"fp":"FY","form":"10-KT","filed":"2012-02-09","frame":"CY2010"}]}},"StockIssuedDuringPeriodValueIssuedForServices":{"label":"Stock Issued During Period, Value, Issued for Services","description":"Value of stock issued in lieu of cash for services contributed to the entity. Value of the stock issued includes, but is not limited to, services contributed by vendors and founders.","units":{"USD":[{"start":"2014-12-01","end":"2015-11-30","val":1000,"accn":"0001193125-16-490221","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-02","frame":"CY2015"}]}},"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":"2010-06-01","end":"2011-05-31","val":1203056,"accn":"0001193125-12-047943","fy":2011,"fp":"FY","form":"10-KT","filed":"2012-02-09"},{"start":"2010-06-01","end":"2011-05-31","val":1203000,"accn":"0001193125-13-051966","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-12"},{"start":"2010-06-01","end":"2011-05-31","val":1203000,"accn":"0001193125-14-048240","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-12","frame":"CY2010"},{"start":"2011-12-01","end":"2012-05-31","val":674000,"accn":"0001193125-12-298791","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-07-10"},{"start":"2011-12-01","end":"2012-05-31","val":674000,"accn":"0001193125-12-299922","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-07-11"},{"start":"2011-12-01","end":"2012-08-31","val":674000,"accn":"0001193125-12-419943","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-10-10"},{"start":"2011-12-01","end":"2012-11-30","val":674000,"accn":"0001193125-13-051966","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-12"},{"start":"2011-12-01","end":"2012-11-30","val":674000,"accn":"0001193125-14-048240","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-12"},{"start":"2011-12-01","end":"2012-11-30","val":674000,"accn":"0001193125-15-041538","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-10","frame":"CY2012"}]}},"StockIssuedDuringPeriodValueStockOptionsExercised":{"label":"Stock Issued During Period, Value, Stock Options Exercised","description":"Value of stock issued as a result of the exercise of stock options.","units":{"USD":[{"start":"2011-06-01","end":"2011-08-31","val":1847346,"accn":"0001193125-11-272816","fy":2012,"fp":"Q1","form":"10-Q","filed":"2011-10-17","frame":"CY2011Q3"},{"start":"2011-06-01","end":"2011-11-30","val":1846000,"accn":"0001193125-14-048240","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-12"},{"start":"2011-06-01","end":"2011-11-30","val":1846000,"accn":"0001193125-13-051966","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-12"},{"start":"2011-06-01","end":"2011-11-30","val":1847346,"accn":"0001193125-12-047943","fy":2011,"fp":"FY","form":"10-KT","filed":"2012-02-09"}]}},"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":"2009-06-01","end":"2010-05-31","val":570000,"accn":"0001193125-13-051966","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-12","frame":"CY2009"},{"start":"2009-06-01","end":"2010-05-31","val":-570475,"accn":"0001193125-12-047943","fy":2011,"fp":"FY","form":"10-KT","filed":"2012-02-09"},{"start":"2010-06-01","end":"2011-05-31","val":148000,"accn":"0001193125-14-048240","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-12","frame":"CY2010"},{"start":"2010-06-01","end":"2011-05-31","val":148000,"accn":"0001193125-13-051966","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-12"},{"start":"2010-06-01","end":"2011-05-31","val":-148199,"accn":"0001193125-12-047943","fy":2011,"fp":"FY","form":"10-KT","filed":"2012-02-09"}]}},"StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased":{"label":"Stock Repurchase Program, Number of Shares Authorized to be Repurchased","description":"The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.","units":{"shares":[{"end":"2010-03-09","val":831250,"accn":"0001193125-14-048240","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-12","frame":"CY2010Q1I"},{"end":"2012-08-31","val":831250,"accn":"0001193125-12-419943","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-10-10","frame":"CY2012Q3I"},{"end":"2012-11-30","val":831250,"accn":"0001193125-13-051966","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-12","frame":"CY2012Q4I"}]}},"TemporaryEquityAccretionToRedemptionValueAdjustment":{"label":"Temporary Equity, Accretion to Redemption Value, Adjustment","description":"Amount of decrease to net income for accretion of temporary equity to its redemption value to derive net income apportioned to common stockholders.","units":{"USD":[{"start":"2012-12-01","end":"2013-05-31","val":-290000,"accn":"0001193125-13-287312","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-07-10"},{"start":"2012-12-01","end":"2013-05-31","val":290000,"accn":"0001193125-14-264231","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-07-09"},{"start":"2013-03-01","end":"2013-05-31","val":-290000,"accn":"0001193125-13-287312","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-07-10"},{"start":"2013-03-01","end":"2013-05-31","val":290000,"accn":"0001193125-14-264231","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-07-09","frame":"CY2013Q2"},{"start":"2012-12-01","end":"2013-08-31","val":671000,"accn":"0001193125-13-395340","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-10-09"},{"start":"2012-12-01","end":"2013-08-31","val":671000,"accn":"0001193125-14-362715","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-03"},{"start":"2013-06-01","end":"2013-08-31","val":381000,"accn":"0001193125-13-395340","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-10-09"},{"start":"2013-06-01","end":"2013-08-31","val":381000,"accn":"0001193125-14-362715","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-03","frame":"CY2013Q3"},{"start":"2012-12-01","end":"2013-11-30","val":1057000,"accn":"0001193125-14-048240","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-12"},{"start":"2012-12-01","end":"2013-11-30","val":1057000,"accn":"0001193125-15-041538","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-10","frame":"CY2013"},{"start":"2013-12-01","end":"2014-02-28","val":393000,"accn":"0001193125-14-137142","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-04-09"},{"start":"2013-12-01","end":"2014-02-28","val":393000,"accn":"0001193125-15-122741","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-04-08","frame":"CY2014Q1"},{"start":"2013-12-01","end":"2014-05-31","val":393000,"accn":"0001193125-14-264231","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-07-09"},{"start":"2013-12-01","end":"2014-05-31","val":393000,"accn":"0001193125-15-247916","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-08"},{"start":"2013-12-01","end":"2014-08-31","val":393000,"accn":"0001193125-14-362715","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-03"},{"start":"2013-12-01","end":"2014-08-31","val":393000,"accn":"0001193125-15-340373","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-08"},{"start":"2013-12-01","end":"2014-11-30","val":393000,"accn":"0001193125-15-041538","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-10"},{"start":"2013-12-01","end":"2014-11-30","val":393000,"accn":"0001193125-16-490221","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-02","frame":"CY2014"}]}},"TemporaryEquityLiquidationPreference":{"label":"Temporary Equity, Liquidation Preference","description":"The aggregate liquidation preference (or restrictions) of stock classified as temporary equity that has a preference in involuntary liquidation considerably in excess of the par or stated value of the shares. The liquidation preference is the difference between the preference in liquidation and the par or stated values of the share. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.","units":{"USD":[{"end":"2011-11-30","val":1000,"accn":"0001193125-12-298791","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-07-10"},{"end":"2011-11-30","val":1000,"accn":"0001193125-12-299922","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-07-11"},{"end":"2011-11-30","val":1000000,"accn":"0001193125-12-419943","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-10-10"},{"end":"2011-11-30","val":1000000,"accn":"0001193125-13-051966","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-12","frame":"CY2011Q4I"},{"end":"2012-05-31","val":1000,"accn":"0001193125-12-298791","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-07-10"},{"end":"2012-05-31","val":1000,"accn":"0001193125-12-299922","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-07-11","frame":"CY2012Q2I"},{"end":"2012-08-31","val":1000000,"accn":"0001193125-12-419943","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-10-10","frame":"CY2012Q3I"},{"end":"2012-11-30","val":1000000,"accn":"0001193125-13-051966","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-12"},{"end":"2012-11-30","val":1000000,"accn":"0001193125-13-147735","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-04-09"},{"end":"2012-11-30","val":1003000,"accn":"0001193125-13-287312","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-07-10"},{"end":"2012-11-30","val":1027000,"accn":"0001193125-13-395340","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-10-09"},{"end":"2012-11-30","val":1000000,"accn":"0001193125-14-048240","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-12","frame":"CY2012Q4I"},{"end":"2013-02-28","val":1000000,"accn":"0001193125-13-147735","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-04-09","frame":"CY2013Q1I"},{"end":"2013-05-31","val":1003000,"accn":"0001193125-13-287312","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-07-10","frame":"CY2013Q2I"},{"end":"2013-08-31","val":1027000,"accn":"0001193125-13-395340","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-10-09","frame":"CY2013Q3I"},{"end":"2013-11-30","val":1042000,"accn":"0001193125-14-048240","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-12"},{"end":"2013-11-30","val":1042000,"accn":"0001193125-14-137142","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-04-09"},{"end":"2013-11-30","val":1042000,"accn":"0001193125-14-264231","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-07-09"},{"end":"2013-11-30","val":1042000,"accn":"0001193125-14-362715","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-03"},{"end":"2013-11-30","val":1042000,"accn":"0001193125-15-041538","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-10","frame":"CY2013Q4I"},{"end":"2014-02-28","val":1058000,"accn":"0001193125-14-137142","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-04-09","frame":"CY2014Q1I"},{"end":"2014-05-31","val":0,"accn":"0001193125-14-264231","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-07-09","frame":"CY2014Q2I"},{"end":"2014-08-31","val":0,"accn":"0001193125-14-362715","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-03","frame":"CY2014Q3I"},{"end":"2014-11-30","val":0,"accn":"0001193125-15-041538","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-10","frame":"CY2014Q4I"}]}},"TemporaryEquitySharesAuthorized":{"label":"Temporary Equity, Shares Authorized","description":"The maximum number of securities classified as temporary equity that are permitted to be issued by an entity's charter and bylaws. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.","units":{"shares":[{"end":"2011-11-30","val":1000000,"accn":"0001193125-12-298791","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-07-10"},{"end":"2011-11-30","val":1000000,"accn":"0001193125-12-299922","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-07-11"},{"end":"2011-11-30","val":1000000,"accn":"0001193125-12-419943","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-10-10"},{"end":"2011-11-30","val":1000000,"accn":"0001193125-13-051966","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-12","frame":"CY2011Q4I"},{"end":"2012-05-31","val":1000000,"accn":"0001193125-12-298791","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-07-10"},{"end":"2012-05-31","val":1000000,"accn":"0001193125-12-299922","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-07-11","frame":"CY2012Q2I"},{"end":"2012-08-31","val":1000000,"accn":"0001193125-12-419943","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-10-10","frame":"CY2012Q3I"},{"end":"2012-11-30","val":1000000,"accn":"0001193125-13-051966","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-12"},{"end":"2012-11-30","val":1000000,"accn":"0001193125-13-147735","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-04-09"},{"end":"2012-11-30","val":1000000,"accn":"0001193125-13-287312","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-07-10"},{"end":"2012-11-30","val":1000000,"accn":"0001193125-13-395340","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-10-09"},{"end":"2012-11-30","val":1000000,"accn":"0001193125-14-048240","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-12","frame":"CY2012Q4I"},{"end":"2013-02-28","val":1000000,"accn":"0001193125-13-147735","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-04-09","frame":"CY2013Q1I"},{"end":"2013-05-31","val":1000000,"accn":"0001193125-13-287312","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-07-10","frame":"CY2013Q2I"},{"end":"2013-08-31","val":1000000,"accn":"0001193125-13-395340","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-10-09","frame":"CY2013Q3I"},{"end":"2013-11-30","val":1000000,"accn":"0001193125-14-048240","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-12"},{"end":"2013-11-30","val":1000000,"accn":"0001193125-14-137142","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-04-09"},{"end":"2013-11-30","val":1000000,"accn":"0001193125-14-264231","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-07-09"},{"end":"2013-11-30","val":1000000,"accn":"0001193125-14-362715","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-03"},{"end":"2013-11-30","val":1000000,"accn":"0001193125-15-041538","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-10","frame":"CY2013Q4I"},{"end":"2014-02-28","val":1000000,"accn":"0001193125-14-137142","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-04-09","frame":"CY2014Q1I"},{"end":"2014-05-31","val":1000000,"accn":"0001193125-14-264231","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-07-09","frame":"CY2014Q2I"},{"end":"2014-08-31","val":1000000,"accn":"0001193125-14-362715","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-03","frame":"CY2014Q3I"},{"end":"2014-11-30","val":1000000,"accn":"0001193125-15-041538","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-10","frame":"CY2014Q4I"}]}},"TemporaryEquitySharesIssued":{"label":"Temporary Equity, Shares Issued","description":"The number of securities classified as temporary equity that have been sold (or granted) to the entity's shareholders. Securities issued include securities outstanding and securities held in treasury. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. 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Securities outstanding equals securities issued minus securities held in treasury. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.","units":{"shares":[{"end":"2011-11-30","val":0,"accn":"0001193125-12-298791","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-07-10"},{"end":"2011-11-30","val":0,"accn":"0001193125-12-299922","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-07-11"},{"end":"2011-11-30","val":0,"accn":"0001193125-12-419943","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-10-10"},{"end":"2011-11-30","val":0,"accn":"0001193125-13-051966","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-12","frame":"CY2011Q4I"},{"end":"2012-05-31","val":26000,"accn":"0001193125-12-298791","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-07-10"},{"end":"2012-05-31","val":26000,"accn":"0001193125-12-299922","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-07-11","frame":"CY2012Q2I"},{"end":"2012-08-31","val":26000,"accn":"0001193125-12-419943","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-10-10","frame":"CY2012Q3I"},{"end":"2012-11-30","val":26000,"accn":"0001193125-13-051966","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-12"},{"end":"2012-11-30","val":0,"accn":"0001193125-13-147735","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-04-09"},{"end":"2012-11-30","val":26000,"accn":"0001193125-13-287312","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-07-10"},{"end":"2012-11-30","val":26000,"accn":"0001193125-13-395340","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-10-09"},{"end":"2012-11-30","val":26000,"accn":"0001193125-14-048240","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-12","frame":"CY2012Q4I"},{"end":"2013-02-28","val":26000,"accn":"0001193125-13-147735","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-04-09","frame":"CY2013Q1I"},{"end":"2013-05-31","val":26000,"accn":"0001193125-13-287312","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-07-10","frame":"CY2013Q2I"},{"end":"2013-08-31","val":26000,"accn":"0001193125-13-395340","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-10-09","frame":"CY2013Q3I"},{"end":"2013-11-30","val":26000,"accn":"0001193125-14-048240","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-12"},{"end":"2013-11-30","val":26000,"accn":"0001193125-14-137142","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-04-09"},{"end":"2013-11-30","val":26000,"accn":"0001193125-14-264231","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-07-09"},{"end":"2013-11-30","val":26000,"accn":"0001193125-14-362715","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-03"},{"end":"2013-11-30","val":26000,"accn":"0001193125-15-041538","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-10","frame":"CY2013Q4I"},{"end":"2014-02-28","val":26000,"accn":"0001193125-14-137142","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-04-09","frame":"CY2014Q1I"},{"end":"2014-05-31","val":0,"accn":"0001193125-14-264231","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-07-09","frame":"CY2014Q2I"},{"end":"2014-08-31","val":0,"accn":"0001193125-14-362715","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-03","frame":"CY2014Q3I"},{"end":"2014-11-30","val":0,"accn":"0001193125-15-041538","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-10","frame":"CY2014Q4I"}]}},"TemporaryEquityValueExcludingAdditionalPaidInCapital":{"label":"Temporary Equity, Par Value","description":"Carrying amount of the par value of temporary equity outstanding. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.","units":{"USD":[{"end":"2012-05-31","val":25353000,"accn":"0001193125-12-298791","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-07-10"},{"end":"2012-05-31","val":26268000,"accn":"0001193125-12-299922","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-07-11","frame":"CY2012Q2I"},{"end":"2012-08-31","val":25922000,"accn":"0001193125-12-419943","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-10-10","frame":"CY2012Q3I"},{"end":"2012-11-30","val":25581000,"accn":"0001193125-13-051966","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-12"},{"end":"2012-11-30","val":25581000,"accn":"0001193125-13-147735","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-04-09"},{"end":"2012-11-30","val":25581000,"accn":"0001193125-13-287312","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-07-10"},{"end":"2012-11-30","val":25581000,"accn":"0001193125-13-395340","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-10-09"},{"end":"2012-11-30","val":25581000,"accn":"0001193125-14-048240","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-12","frame":"CY2012Q4I"},{"end":"2013-02-28","val":25234000,"accn":"0001193125-13-147735","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-04-09","frame":"CY2013Q1I"},{"end":"2013-05-31","val":25478000,"accn":"0001193125-13-287312","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-07-10","frame":"CY2013Q2I"},{"end":"2013-08-31","val":25898000,"accn":"0001193125-13-395340","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-10-09","frame":"CY2013Q3I"},{"end":"2013-11-30","val":26326000,"accn":"0001193125-14-048240","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-12"},{"end":"2013-11-30","val":26326000,"accn":"0001193125-14-137142","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-04-09"},{"end":"2013-11-30","val":26326000,"accn":"0001193125-14-264231","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-07-09"},{"end":"2013-11-30","val":26326000,"accn":"0001193125-14-362715","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-03"},{"end":"2013-11-30","val":26326000,"accn":"0001193125-15-041538","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-10","frame":"CY2013Q4I"},{"end":"2014-02-28","val":26761000,"accn":"0001193125-14-137142","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-04-09","frame":"CY2014Q1I"}]}},"TreasuryStockSharesAcquired":{"label":"Treasury Stock, Shares, Acquired","description":"Number of shares that have been repurchased during the period and are being held in treasury.","units":{"shares":[{"start":"2010-06-01","end":"2011-05-31","val":35544,"accn":"0001193125-14-048240","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-12","frame":"CY2010"}]}},"TreasuryStockValueAcquiredCostMethod":{"label":"Treasury Stock, Value, Acquired, Cost Method","description":"Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.","units":{"USD":[{"start":"2010-06-01","end":"2011-05-31","val":148000,"accn":"0001193125-14-048240","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-12","frame":"CY2010"}]}},"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":"2014-11-30","val":24962000,"accn":"0001193125-15-041538","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-10","frame":"CY2014Q4I"},{"end":"2015-11-30","val":26264000,"accn":"0001193125-16-490221","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-02","frame":"CY2015Q4I"}]}},"UnrealizedGainLossOnMarketableSecuritiesCostMethodInvestmentsAndOtherInvestments":{"label":"Unrealized Gain (Loss) on Marketable Securities, Cost Method Investments, and Other Investments","description":"The aggregate net change in the difference between the fair value and the carrying value, or in the comparative fair values, of marketable securities categorized as trading held at each balance sheet date, that was included in earnings for the period, which may have arisen from (a) securities classified as trading, (b) the unrealized holding gain (loss) on held-to-maturity securities transferred to the trading security category, and (c) the cumulative unrealized gain (loss) which was included in other comprehensive income (a separate component of shareholders' equity) on available-for-sale securities transferred to trading securities during the period and/or any unrealized gains or losses on investments that are separately or otherwise not categorized as trading or available-for-sale.","units":{"USD":[{"start":"2011-11-01","end":"2011-11-30","val":0,"accn":"0001193125-13-051966","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-12"},{"start":"2012-11-01","end":"2012-11-30","val":0,"accn":"0001193125-13-051966","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-12"}]}},"UnrecognizedTaxBenefits":{"label":"Unrecognized Tax Benefits","description":"Amount of unrecognized tax 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