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Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. 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Cash and cash equivalents consist of short term, highly liquid investments that are readily convertible to known amounts of cash and are so near their maturity that they present negligible risk of changes in value due to changes in interest rates -- usually with an original maturity less than 90 days.","units":{"USD":[{"end":"2010-12-31","val":23911000,"accn":"0001193125-11-204435","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-01"},{"end":"2010-12-31","val":23911000,"accn":"0001193125-11-287993","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-10-31"},{"end":"2010-12-31","val":23911000,"accn":"0001193125-12-106093","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-09","frame":"CY2010Q4I"},{"end":"2011-06-30","val":14461000,"accn":"0001193125-11-204435","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-01","frame":"CY2011Q2I"},{"end":"2011-09-30","val":36798000,"accn":"0001193125-11-287993","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-10-31","frame":"CY2011Q3I"},{"end":"2011-12-31","val":29863000,"accn":"0001193125-12-106093","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-09"},{"end":"2011-12-31","val":29863000,"accn":"0001193125-12-210493","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":29863000,"accn":"0001193125-12-342516","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-08"},{"end":"2011-12-31","val":29863000,"accn":"0001193125-12-450627","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-05"},{"end":"2011-12-31","val":29863000,"accn":"0001193125-13-082971","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-28","frame":"CY2011Q4I"},{"end":"2012-03-31","val":89839000,"accn":"0001193125-12-210493","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":122378000,"accn":"0001193125-12-342516","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-08","frame":"CY2012Q2I"},{"end":"2012-09-30","val":94268000,"accn":"0001193125-12-450627","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-05","frame":"CY2012Q3I"},{"end":"2012-12-31","val":60395000,"accn":"0001193125-13-082971","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-28"},{"end":"2012-12-31","val":60395000,"accn":"0001193125-13-185180","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-04-30"},{"end":"2012-12-31","val":60395000,"accn":"0001193125-13-314104","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-01"},{"end":"2012-12-31","val":60395000,"accn":"0001193125-13-426795","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-05"},{"end":"2012-12-31","val":60395000,"accn":"0001193125-14-079059","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-03"},{"end":"2012-12-31","val":60395000,"accn":"0001193125-14-395210","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-04","frame":"CY2012Q4I"},{"end":"2013-03-31","val":83945000,"accn":"0001193125-13-185180","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-04-30","frame":"CY2013Q1I"},{"end":"2013-06-30","val":86977000,"accn":"0001193125-13-314104","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-01","frame":"CY2013Q2I"},{"end":"2013-09-30","val":30253000,"accn":"0001193125-13-426795","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-05"},{"end":"2013-09-30","val":30253000,"accn":"0001193125-14-395210","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-04","frame":"CY2013Q3I"},{"end":"2013-12-31","val":24700000,"accn":"0001193125-14-079059","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-03"},{"end":"2013-12-31","val":24700000,"accn":"0001193125-14-169883","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-04-30"},{"end":"2013-12-31","val":24700000,"accn":"0001193125-14-293108","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-04"},{"end":"2013-12-31","val":24700000,"accn":"0001193125-14-395210","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-04","frame":"CY2013Q4I"},{"end":"2014-03-31","val":79157000,"accn":"0001193125-14-169883","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-04-30","frame":"CY2014Q1I"},{"end":"2014-06-30","val":35367000,"accn":"0001193125-14-293108","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-04","frame":"CY2014Q2I"},{"end":"2014-09-30","val":11483000,"accn":"0001193125-14-395210","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-04","frame":"CY2014Q3I"}]}},"CashCashEquivalentsAndShortTermInvestments":{"label":"Cash, Cash Equivalents, and Short-term Investments","description":"Cash includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the customer may deposit additional funds at any time and 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. Short-term investments, exclusive of cash equivalents, generally consist of marketable securities intended to be sold within one year (or the normal operating cycle if longer) and may include trading securities, available-for-sale securities, or held-to-maturity securities (if maturing within one year), as applicable.","units":{"USD":[{"end":"2011-03-31","val":629124000,"accn":"0001193125-13-082971","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-28","frame":"CY2011Q1I"},{"end":"2011-06-30","val":715262000,"accn":"0001193125-13-082971","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-28","frame":"CY2011Q2I"},{"end":"2011-09-30","val":724158000,"accn":"0001193125-13-082971","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-28","frame":"CY2011Q3I"},{"end":"2011-12-31","val":741026000,"accn":"0001193125-13-082971","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-28","frame":"CY2011Q4I"},{"end":"2012-03-31","val":691205000,"accn":"0001193125-14-079059","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-03","frame":"CY2012Q1I"},{"end":"2012-03-31","val":691205000,"accn":"0001193125-13-082971","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-28"},{"end":"2012-06-30","val":667509000,"accn":"0001193125-14-079059","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-03","frame":"CY2012Q2I"},{"end":"2012-06-30","val":667509000,"accn":"0001193125-13-082971","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-28"},{"end":"2012-09-30","val":546397000,"accn":"0001193125-14-079059","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-03","frame":"CY2012Q3I"},{"end":"2012-09-30","val":546397000,"accn":"0001193125-13-082971","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-28"},{"end":"2012-12-31","val":518493000,"accn":"0001193125-14-079059","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-03","frame":"CY2012Q4I"},{"end":"2012-12-31","val":518493000,"accn":"0001193125-13-082971","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-28"},{"end":"2013-03-31","val":507665000,"accn":"0001193125-14-079059","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":512573000,"accn":"0001193125-14-079059","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-03","frame":"CY2013Q2I"},{"end":"2013-09-30","val":461197000,"accn":"0001193125-14-079059","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-03","frame":"CY2013Q3I"},{"end":"2013-12-31","val":423216000,"accn":"0001193125-14-079059","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-03","frame":"CY2013Q4I"}]}},"ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights":{"label":"Class 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(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 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or available-for-sale) during the period.","units":{"USD":[{"start":"2014-01-01","end":"2014-09-30","val":8841000,"accn":"0001193125-14-395210","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-04"}]}},"ProceedsFromSaleOfAvailableForSaleSecurities":{"label":"Proceeds from Sale of Available-for-sale Securities","description":"The cash inflow associated with the sale of debt and equity securities classified as available-for-sale securities.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":24772000,"accn":"0001193125-11-204435","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-01"},{"start":"2010-01-01","end":"2010-09-30","val":24772000,"accn":"0001193125-11-287993","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-10-31"},{"start":"2010-01-01","end":"2010-12-31","val":24772000,"accn":"0001193125-12-106093","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-09"},{"start":"2010-01-01","end":"2010-12-31","val":24772000,"accn":"0001193125-13-082971","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-28","frame":"CY2010"},{"start":"2013-01-01","end":"2013-12-31","val":4050000,"accn":"0001193125-14-079059","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-03","frame":"CY2013"},{"start":"2014-01-01","end":"2014-09-30","val":37384000,"accn":"0001193125-14-395210","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-04"}]}},"ProceedsFromSaleOfForeclosedAssets":{"label":"Proceeds from Sale of Foreclosed 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Foreclosed assets also include loans that are treated as if the underlying collateral had been foreclosed because the institution has taken possession of the collateral, even though legal foreclosure or repossession proceedings have not taken place.","units":{"USD":[{"start":"2010-05-01","end":"2010-05-31","val":9100000,"accn":"0001193125-13-082971","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-28"}]}},"ProceedsFromSaleOfHeldToMaturitySecurities":{"label":"Proceeds from Sale of Held-to-maturity Securities","description":"The cash inflow associated with the sale of securities that had been designated as held-to-maturity. Excludes proceeds from maturities, prepayments and calls by the issuer.","units":{"USD":[{"start":"2013-01-01","end":"2013-09-30","val":99705000,"accn":"0001193125-14-395210","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-04"},{"start":"2014-01-01","end":"2014-09-30","val":66394000,"accn":"0001193125-14-395210","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-04"}]}},"ProceedsFromSaleOfLoansAndLeasesHeldForInvestment":{"label":"Proceeds from Sale of Loans and Leases Held-for-investment","description":"The net cash inflow from (a) sales of loans held-for-investment, (b) sales of leases held-for-investment, and (c) both. Includes proceeds from securitizations of loans.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":110001000,"accn":"0001193125-11-204435","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-01"},{"start":"2010-01-01","end":"2010-09-30","val":110001000,"accn":"0001193125-11-287993","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-10-31"}]}},"ProceedsFromSaleOfLoansHeldForSale":{"label":"Proceeds from Sale of Loans Held-for-sale","description":"The cash inflow resulting from the sale of loans classified as held-for-sale, including proceeds from loans sold through mortgage 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The term is often expanded to include other professions, for example, pharmacists charging to maintain a medicinal profile of a client or 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