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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":"2011-12-31","val":3778745,"accn":"0001193125-12-250583","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-29","frame":"CY2011Q4I"},{"end":"2012-12-31","val":3899610,"accn":"0001193125-13-232869","fy":2012,"fp":"FY","form":"20-F/A","filed":"2013-05-23","frame":"CY2012Q4I"},{"end":"2013-12-31","val":0,"accn":"0001193125-14-260582","fy":2013,"fp":"FY","form":"20-F","filed":"2014-07-03","frame":"CY2013Q4I"}]}}},"us-gaap":{"AccountsPayableAndOtherAccruedLiabilitiesCurrent":{"label":"Accounts Payable and Other Accrued Liabilities, Current","description":"Amount of liabilities incurred to vendors for goods and services received, and accrued liabilities classified as other, payable within one year or the normal operating cycle, if longer.","units":{"USD":[{"end":"2010-12-31","val":1872000,"accn":"0001193125-12-250583","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-29","frame":"CY2010Q4I"},{"end":"2011-12-31","val":2004000,"accn":"0001193125-12-250583","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-29"},{"end":"2011-12-31","val":2004000,"accn":"0001193125-13-232869","fy":2012,"fp":"FY","form":"20-F/A","filed":"2013-05-23","frame":"CY2011Q4I"},{"end":"2012-12-31","val":1388000,"accn":"0001193125-13-232869","fy":2012,"fp":"FY","form":"20-F/A","filed":"2013-05-23"},{"end":"2012-12-31","val":1388000,"accn":"0001193125-14-260582","fy":2013,"fp":"FY","form":"20-F","filed":"2014-07-03","frame":"CY2012Q4I"},{"end":"2013-12-31","val":1384000,"accn":"0001193125-14-260582","fy":2013,"fp":"FY","form":"20-F","filed":"2014-07-03","frame":"CY2013Q4I"}]}},"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":"2010-12-31","val":386000,"accn":"0001193125-12-250583","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-29","frame":"CY2010Q4I"},{"end":"2011-12-31","val":717000,"accn":"0001193125-12-250583","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-29"},{"end":"2011-12-31","val":717000,"accn":"0001193125-13-232869","fy":2012,"fp":"FY","form":"20-F/A","filed":"2013-05-23","frame":"CY2011Q4I"},{"end":"2012-12-31","val":360000,"accn":"0001193125-13-232869","fy":2012,"fp":"FY","form":"20-F/A","filed":"2013-05-23"},{"end":"2012-12-31","val":360000,"accn":"0001193125-14-260582","fy":2013,"fp":"FY","form":"20-F","filed":"2014-07-03","frame":"CY2012Q4I"},{"end":"2013-12-31","val":525000,"accn":"0001193125-14-260582","fy":2013,"fp":"FY","form":"20-F","filed":"2014-07-03","frame":"CY2013Q4I"}]}},"AccountsReceivableNetCurrent":{"label":"Accounts Receivable, after Allowance for Credit Loss, Current","description":"Amount, after 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":"2010-12-31","val":592000,"accn":"0001193125-12-250583","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-29","frame":"CY2010Q4I"},{"end":"2011-12-31","val":511000,"accn":"0001193125-12-250583","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-29"},{"end":"2011-12-31","val":511000,"accn":"0001193125-13-232869","fy":2012,"fp":"FY","form":"20-F/A","filed":"2013-05-23","frame":"CY2011Q4I"},{"end":"2012-12-31","val":430000,"accn":"0001193125-13-232869","fy":2012,"fp":"FY","form":"20-F/A","filed":"2013-05-23"},{"end":"2012-12-31","val":430000,"accn":"0001193125-14-260582","fy":2013,"fp":"FY","form":"20-F","filed":"2014-07-03","frame":"CY2012Q4I"},{"end":"2013-12-31","val":1031000,"accn":"0001193125-14-260582","fy":2013,"fp":"FY","form":"20-F","filed":"2014-07-03","frame":"CY2013Q4I"}]}},"AccountsReceivableNetNoncurrent":{"label":"Accounts Receivable, after Allowance for Credit Loss, Noncurrent","description":"Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as noncurrent.","units":{"USD":[{"end":"2010-12-31","val":0,"accn":"0001193125-12-250583","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-29","frame":"CY2010Q4I"},{"end":"2011-12-31","val":183000,"accn":"0001193125-12-250583","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-29","frame":"CY2011Q4I"}]}},"AccruedLiabilitiesCurrent":{"label":"Accrued Liabilities, Current","description":"Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).","units":{"USD":[{"end":"2011-12-31","val":621000,"accn":"0001193125-13-232869","fy":2012,"fp":"FY","form":"20-F/A","filed":"2013-05-23","frame":"CY2011Q4I"},{"end":"2012-12-31","val":442000,"accn":"0001193125-13-232869","fy":2012,"fp":"FY","form":"20-F/A","filed":"2013-05-23"},{"end":"2012-12-31","val":442000,"accn":"0001193125-14-260582","fy":2013,"fp":"FY","form":"20-F","filed":"2014-07-03","frame":"CY2012Q4I"},{"end":"2013-12-31","val":355000,"accn":"0001193125-14-260582","fy":2013,"fp":"FY","form":"20-F","filed":"2014-07-03","frame":"CY2013Q4I"}]}},"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":"2011-12-31","val":1573000,"accn":"0001193125-13-232869","fy":2012,"fp":"FY","form":"20-F/A","filed":"2013-05-23","frame":"CY2011Q4I"},{"end":"2012-12-31","val":1625000,"accn":"0001193125-13-232869","fy":2012,"fp":"FY","form":"20-F/A","filed":"2013-05-23"},{"end":"2012-12-31","val":1625000,"accn":"0001193125-14-260582","fy":2013,"fp":"FY","form":"20-F","filed":"2014-07-03","frame":"CY2012Q4I"},{"end":"2013-12-31","val":1671000,"accn":"0001193125-14-260582","fy":2013,"fp":"FY","form":"20-F","filed":"2014-07-03","frame":"CY2013Q4I"}]}},"AccumulatedOtherComprehensiveIncomeLossNetOfTax":{"label":"Accumulated Other Comprehensive Income (Loss), Net of Tax","description":"Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.","units":{"USD":[{"end":"2010-12-31","val":55000,"accn":"0001193125-12-250583","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-29","frame":"CY2010Q4I"},{"end":"2011-12-31","val":0,"accn":"0001193125-12-250583","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-29","frame":"CY2011Q4I"}]}},"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":"2010-12-31","val":116456000,"accn":"0001193125-12-250583","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-29","frame":"CY2010Q4I"},{"end":"2011-12-31","val":116338000,"accn":"0001193125-12-250583","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-29"},{"end":"2011-12-31","val":116338000,"accn":"0001193125-13-232869","fy":2012,"fp":"FY","form":"20-F/A","filed":"2013-05-23","frame":"CY2011Q4I"},{"end":"2012-12-31","val":116297000,"accn":"0001193125-13-232869","fy":2012,"fp":"FY","form":"20-F/A","filed":"2013-05-23"},{"end":"2012-12-31","val":116297000,"accn":"0001193125-14-260582","fy":2013,"fp":"FY","form":"20-F","filed":"2014-07-03","frame":"CY2012Q4I"},{"end":"2013-12-31","val":116172000,"accn":"0001193125-14-260582","fy":2013,"fp":"FY","form":"20-F","filed":"2014-07-03","frame":"CY2013Q4I"}]}},"AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue":{"label":"APIC, Share-based Payment Arrangement, Increase for Cost Recognition","description":"Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":130000,"accn":"0001193125-12-250583","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-29","frame":"CY2009"},{"start":"2010-01-01","end":"2010-12-31","val":95000,"accn":"0001193125-12-250583","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-29"},{"start":"2010-01-01","end":"2010-12-31","val":95000,"accn":"0001193125-13-232869","fy":2012,"fp":"FY","form":"20-F/A","filed":"2013-05-23","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":102000,"accn":"0001193125-12-250583","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-29"},{"start":"2011-01-01","end":"2011-12-31","val":102000,"accn":"0001193125-13-232869","fy":2012,"fp":"FY","form":"20-F/A","filed":"2013-05-23"},{"start":"2011-01-01","end":"2011-12-31","val":102000,"accn":"0001193125-14-260582","fy":2013,"fp":"FY","form":"20-F","filed":"2014-07-03","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":20000,"accn":"0001193125-13-232869","fy":2012,"fp":"FY","form":"20-F/A","filed":"2013-05-23"},{"start":"2012-01-01","end":"2012-12-31","val":20000,"accn":"0001193125-14-260582","fy":2013,"fp":"FY","form":"20-F","filed":"2014-07-03","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":95000,"accn":"0001193125-14-260582","fy":2013,"fp":"FY","form":"20-F","filed":"2014-07-03","frame":"CY2013"}]}},"AdjustmentsToAdditionalPaidInCapitalWarrantIssued":{"label":"Adjustments to Additional Paid in Capital, Warrant Issued","description":"Amount of increase in additional paid in capital (APIC) resulting from the issuance of warrants. Includes allocation of proceeds of debt securities issued with detachable stock purchase warrants.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":10000,"accn":"0001193125-13-232869","fy":2012,"fp":"FY","form":"20-F/A","filed":"2013-05-23"},{"start":"2012-01-01","end":"2012-12-31","val":10000,"accn":"0001193125-14-260582","fy":2013,"fp":"FY","form":"20-F","filed":"2014-07-03","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":10000,"accn":"0001193125-14-260582","fy":2013,"fp":"FY","form":"20-F","filed":"2014-07-03","frame":"CY2013"}]}},"AdvertisingExpense":{"label":"Advertising Expense","description":"Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":33000,"accn":"0001193125-13-232869","fy":2012,"fp":"FY","form":"20-F/A","filed":"2013-05-23","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":74000,"accn":"0001193125-13-232869","fy":2012,"fp":"FY","form":"20-F/A","filed":"2013-05-23"},{"start":"2011-01-01","end":"2011-12-31","val":74000,"accn":"0001193125-14-260582","fy":2013,"fp":"FY","form":"20-F","filed":"2014-07-03","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":70000,"accn":"0001193125-13-232869","fy":2012,"fp":"FY","form":"20-F/A","filed":"2013-05-23"},{"start":"2012-01-01","end":"2012-12-31","val":70000,"accn":"0001193125-14-260582","fy":2013,"fp":"FY","form":"20-F","filed":"2014-07-03","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":70000,"accn":"0001193125-14-260582","fy":2013,"fp":"FY","form":"20-F","filed":"2014-07-03","frame":"CY2013"}]}},"AmortizationOfDebtDiscountPremium":{"label":"Amortization of Debt Discount (Premium)","description":"Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":15000,"accn":"0001193125-13-232869","fy":2012,"fp":"FY","form":"20-F/A","filed":"2013-05-23","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":15000,"accn":"0001193125-13-232869","fy":2012,"fp":"FY","form":"20-F/A","filed":"2013-05-23"},{"start":"2012-01-01","end":"2012-12-31","val":15000,"accn":"0001193125-14-260582","fy":2013,"fp":"FY","form":"20-F","filed":"2014-07-03","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":7000,"accn":"0001193125-14-260582","fy":2013,"fp":"FY","form":"20-F","filed":"2014-07-03","frame":"CY2013"}]}},"AmortizationOfFinancingCostsAndDiscounts":{"label":"Amortization of Debt Issuance Costs and Discounts","description":"Amount of amortization expense attributable to debt discount (premium) and debt issuance costs.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":-13000,"accn":"0001193125-12-250583","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-29","frame":"CY2009"},{"start":"2010-01-01","end":"2010-12-31","val":-13000,"accn":"0001193125-12-250583","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-29"},{"start":"2010-01-01","end":"2010-12-31","val":-13000,"accn":"0001193125-13-232869","fy":2012,"fp":"FY","form":"20-F/A","filed":"2013-05-23","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":-15000,"accn":"0001193125-12-250583","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-29"},{"start":"2011-01-01","end":"2011-12-31","val":-15000,"accn":"0001193125-13-232869","fy":2012,"fp":"FY","form":"20-F/A","filed":"2013-05-23"},{"start":"2011-01-01","end":"2011-12-31","val":-15000,"accn":"0001193125-14-260582","fy":2013,"fp":"FY","form":"20-F","filed":"2014-07-03","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":-5000,"accn":"0001193125-13-232869","fy":2012,"fp":"FY","form":"20-F/A","filed":"2013-05-23"},{"start":"2012-01-01","end":"2012-12-31","val":-5000,"accn":"0001193125-14-260582","fy":2013,"fp":"FY","form":"20-F","filed":"2014-07-03","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":3000,"accn":"0001193125-14-260582","fy":2013,"fp":"FY","form":"20-F","filed":"2014-07-03","frame":"CY2013"}]}},"AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount":{"label":"Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount","description":"Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.","units":{"shares":[{"start":"2010-01-01","end":"2010-12-31","val":719666,"accn":"0001193125-13-232869","fy":2012,"fp":"FY","form":"20-F/A","filed":"2013-05-23","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":464256,"accn":"0001193125-13-232869","fy":2012,"fp":"FY","form":"20-F/A","filed":"2013-05-23"},{"start":"2011-01-01","end":"2011-12-31","val":464256,"accn":"0001193125-14-260582","fy":2013,"fp":"FY","form":"20-F","filed":"2014-07-03","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":31871,"accn":"0001193125-13-232869","fy":2012,"fp":"FY","form":"20-F/A","filed":"2013-05-23"},{"start":"2012-01-01","end":"2012-12-31","val":31871,"accn":"0001193125-14-260582","fy":2013,"fp":"FY","form":"20-F","filed":"2014-07-03","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":578,"accn":"0001193125-14-260582","fy":2013,"fp":"FY","form":"20-F","filed":"2014-07-03","frame":"CY2013"}]}},"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":"2010-12-31","val":9760000,"accn":"0001193125-12-250583","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-29","frame":"CY2010Q4I"},{"end":"2011-12-31","val":9211000,"accn":"0001193125-12-250583","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-29"},{"end":"2011-12-31","val":9211000,"accn":"0001193125-13-232869","fy":2012,"fp":"FY","form":"20-F/A","filed":"2013-05-23","frame":"CY2011Q4I"},{"end":"2012-12-31","val":9190000,"accn":"0001193125-13-232869","fy":2012,"fp":"FY","form":"20-F/A","filed":"2013-05-23"},{"end":"2012-12-31","val":9190000,"accn":"0001193125-14-260582","fy":2013,"fp":"FY","form":"20-F","filed":"2014-07-03","frame":"CY2012Q4I"},{"end":"2013-12-31","val":10735000,"accn":"0001193125-14-260582","fy":2013,"fp":"FY","form":"20-F","filed":"2014-07-03","frame":"CY2013Q4I"}]}},"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":"2010-12-31","val":1363000,"accn":"0001193125-12-250583","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-29","frame":"CY2010Q4I"},{"end":"2011-12-31","val":1393000,"accn":"0001193125-12-250583","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-29"},{"end":"2011-12-31","val":1393000,"accn":"0001193125-13-232869","fy":2012,"fp":"FY","form":"20-F/A","filed":"2013-05-23","frame":"CY2011Q4I"},{"end":"2012-12-31","val":1397000,"accn":"0001193125-13-232869","fy":2012,"fp":"FY","form":"20-F/A","filed":"2013-05-23"},{"end":"2012-12-31","val":1397000,"accn":"0001193125-14-260582","fy":2013,"fp":"FY","form":"20-F","filed":"2014-07-03","frame":"CY2012Q4I"},{"end":"2013-12-31","val":2853000,"accn":"0001193125-14-260582","fy":2013,"fp":"FY","form":"20-F","filed":"2014-07-03","frame":"CY2013Q4I"}]}},"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. 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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":"2010-12-31","val":326797,"accn":"0001193125-12-250583","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-29","frame":"CY2010Q4I"},{"end":"2011-12-31","val":326797,"accn":"0001193125-12-250583","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-29"},{"end":"2011-12-31","val":326797,"accn":"0001193125-13-232869","fy":2012,"fp":"FY","form":"20-F/A","filed":"2013-05-23","frame":"CY2011Q4I"},{"end":"2012-12-31","val":326797,"accn":"0001193125-13-232869","fy":2012,"fp":"FY","form":"20-F/A","filed":"2013-05-23"},{"end":"2012-12-31","val":326797,"accn":"0001193125-14-260582","fy":2013,"fp":"FY","form":"20-F","filed":"2014-07-03","frame":"CY2012Q4I"},{"end":"2013-12-31","val":326797,"accn":"0001193125-14-260582","fy":2013,"fp":"FY","form":"20-F","filed":"2014-07-03","frame":"CY2013Q4I"}]}},"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":"2010-12-31","val":326797,"accn":"0001193125-12-250583","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-29","frame":"CY2010Q4I"},{"end":"2011-12-31","val":326797,"accn":"0001193125-12-250583","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-29"},{"end":"2011-12-31","val":326797,"accn":"0001193125-13-232869","fy":2012,"fp":"FY","form":"20-F/A","filed":"2013-05-23","frame":"CY2011Q4I"},{"end":"2012-12-31","val":326797,"accn":"0001193125-13-232869","fy":2012,"fp":"FY","form":"20-F/A","filed":"2013-05-23"},{"end":"2012-12-31","val":326797,"accn":"0001193125-14-260582","fy":2013,"fp":"FY","form":"20-F","filed":"2014-07-03","frame":"CY2012Q4I"},{"end":"2013-12-31","val":326797,"accn":"0001193125-14-260582","fy":2013,"fp":"FY","form":"20-F","filed":"2014-07-03","frame":"CY2013Q4I"}]}},"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. 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longer.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":0,"accn":"0001193125-12-250583","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-29","frame":"CY2009"},{"start":"2010-01-01","end":"2010-12-31","val":250000,"accn":"0001193125-12-250583","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-29"},{"start":"2010-01-01","end":"2010-12-31","val":250000,"accn":"0001193125-13-232869","fy":2012,"fp":"FY","form":"20-F/A","filed":"2013-05-23","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":550000,"accn":"0001193125-12-250583","fy":2011,"fp":"FY","form":"20-F/A","filed":"2012-05-29"},{"start":"2011-01-01","end":"2011-12-31","val":550000,"accn":"0001193125-13-232869","fy":2012,"fp":"FY","form":"20-F/A","filed":"2013-05-23"},{"start":"2011-01-01","end":"2011-12-31","val":550000,"accn":"0001193125-14-260582","fy":2013,"fp":"FY","form":"20-F","filed":"2014-07-03","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":130000,"accn":"0001193125-13-232869","fy":2012,"fp":"FY","form":"20-F/A","filed":"2013-05-23"},{"start":"2012-01-01","end":"2012-12-31","val":129000,"accn":"0001193125-14-260582","fy":2013,"fp":"FY","form":"20-F","filed":"2014-07-03","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":144000,"accn":"0001193125-14-260582","fy":2013,"fp":"FY","form":"20-F","filed":"2014-07-03","frame":"CY2013"}]}},"ProceedsFromIssuanceOrSaleOfEquity":{"label":"Proceeds 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