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Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. 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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It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity).","units":{"USD":[{"end":"2010-12-31","val":5398000,"accn":"0001193125-11-221072","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12"},{"end":"2010-12-31","val":5398000,"accn":"0001193125-11-311084","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":5398000,"accn":"0001193125-12-280712","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-22","frame":"CY2010Q4I"},{"end":"2011-06-30","val":5398000,"accn":"0001193125-11-221072","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12","frame":"CY2011Q2I"},{"end":"2011-09-30","val":5398000,"accn":"0001193125-11-311084","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":5398000,"accn":"0001193125-12-280712","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-22"},{"end":"2011-12-31","val":5398000,"accn":"0001193125-12-302182","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-07-13"},{"end":"2011-12-31","val":5398000,"accn":"0001193125-12-377210","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-08-31"},{"end":"2011-12-31","val":5398000,"accn":"0001193125-12-460071","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-08"},{"end":"2011-12-31","val":5398000,"accn":"0001193125-13-134427","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-29","frame":"CY2011Q4I"},{"end":"2012-03-31","val":3164000,"accn":"0001193125-12-302182","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-07-13","frame":"CY2012Q1I"},{"end":"2012-06-30","val":2506000,"accn":"0001193125-12-377210","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-08-31","frame":"CY2012Q2I"},{"end":"2012-09-30","val":1895000,"accn":"0001193125-12-460071","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-08","frame":"CY2012Q3I"},{"end":"2012-12-31","val":926000,"accn":"0001193125-13-134427","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-29"},{"end":"2012-12-31","val":926000,"accn":"0001193125-13-219341","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-14"},{"end":"2012-12-31","val":926000,"accn":"0001193125-13-332635","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-13"},{"end":"2012-12-31","val":926000,"accn":"0001144204-13-061673","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-14"},{"end":"2012-12-31","val":926000,"accn":"0001144204-14-018618","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":926000,"accn":"0001193125-13-219341","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-14","frame":"CY2013Q1I"},{"end":"2013-06-30","val":926000,"accn":"0001193125-13-332635","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-13","frame":"CY2013Q2I"},{"end":"2013-09-30","val":926000,"accn":"0001144204-13-061673","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-14","frame":"CY2013Q3I"},{"end":"2013-12-31","val":926000,"accn":"0001144204-14-018618","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-28"},{"end":"2013-12-31","val":926000,"accn":"0001144204-14-030373","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-14"},{"end":"2013-12-31","val":926000,"accn":"0001144204-14-050041","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-14"},{"end":"2013-12-31","val":926000,"accn":"0001144204-14-068404","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-14"},{"end":"2013-12-31","val":926000,"accn":"0001144204-15-015988","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-13","frame":"CY2013Q4I"},{"end":"2014-03-31","val":926000,"accn":"0001144204-14-030373","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-14","frame":"CY2014Q1I"},{"end":"2014-06-30","val":1119000,"accn":"0001144204-14-050041","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-14","frame":"CY2014Q2I"},{"end":"2014-09-30","val":1119000,"accn":"0001144204-14-068404","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-14","frame":"CY2014Q3I"},{"end":"2014-12-31","val":1119000,"accn":"0001144204-15-015988","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-13"},{"end":"2014-12-31","val":1119000,"accn":"0001144204-15-031285","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-15","frame":"CY2014Q4I"},{"end":"2015-03-31","val":1119000,"accn":"0001144204-15-031285","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-15","frame":"CY2015Q1I"}]}},"FeesAndCommissionsDepositorAccounts":{"label":"Fees and Commissions, Depositor Accounts (Deprecated 2018-01-31)","description":"Includes amounts charged depositors for: (1) maintenance of their accounts (maintenance charges); (2) failure to maintain specified minimum balances on account; (3) exceeding the number of checks or transactions allowed to be processed in a given period; (4) checks drawn on no minimum balance deposit accounts; (5) withdrawals from nontransaction deposit accounts; (6) closing savings accounts before a specified minimum period of time has elapsed; (7) accounts which have remained inactive for extended periods of time or which have become dormant; (8) use of automated teller machines or remote service units; (9) checks drawn against insufficient funds that the bank assesses regardless of whether it decides to pay, return or hold the check; (10) issuing stop payment orders; (11) certifying checks; and (12) accumulating or disbursing funds deposited in IRAs or Keogh Plan accounts when not handled by the bank's trust department. This item does not include penalties assessed on the early withdrawal of time deposits.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":262000,"accn":"0001193125-11-221072","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12"},{"start":"2010-04-01","end":"2010-06-30","val":133000,"accn":"0001193125-11-221072","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":383000,"accn":"0001193125-11-311084","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2010-07-01","end":"2010-09-30","val":121000,"accn":"0001193125-11-311084","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":500000,"accn":"0001193125-12-280712","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-22","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":100000,"accn":"0001193125-12-302182","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-07-13","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":215000,"accn":"0001193125-11-221072","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12"},{"start":"2011-01-01","end":"2011-06-30","val":215000,"accn":"0001193125-12-377210","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-08-31"},{"start":"2011-04-01","end":"2011-06-30","val":115000,"accn":"0001193125-11-221072","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-12"},{"start":"2011-04-01","end":"2011-06-30","val":115000,"accn":"0001193125-12-377210","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-08-31","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":323000,"accn":"0001193125-11-311084","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-01-01","end":"2011-09-30","val":323000,"accn":"0001193125-12-460071","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-08"},{"start":"2011-07-01","end":"2011-09-30","val":108000,"accn":"0001193125-11-311084","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"start":"2011-07-01","end":"2011-09-30","val":108000,"accn":"0001193125-12-460071","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-08","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":423000,"accn":"0001193125-12-280712","fy":2011,"fp":"FY","form":"10-K","filed":"2012-06-22"},{"start":"2011-01-01","end":"2011-12-31","val":423000,"accn":"0001193125-13-134427","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-29","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":97000,"accn":"0001193125-12-302182","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-07-13"},{"start":"2012-01-01","end":"2012-03-31","val":97000,"accn":"0001193125-13-219341","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-14","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":191000,"accn":"0001193125-12-377210","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-08-31"},{"start":"2012-01-01","end":"2012-06-30","val":191000,"accn":"0001193125-13-332635","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-13"},{"start":"2012-04-01","end":"2012-06-30","val":94000,"accn":"0001193125-12-377210","fy":2012,"fp":"Q2","form":"10-Q/A","filed":"2012-08-31"},{"start":"2012-04-01","end":"2012-06-30","val":94000,"accn":"0001193125-13-332635","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-13","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":289000,"accn":"0001193125-12-460071","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-08"},{"start":"2012-01-01","end":"2012-09-30","val":289000,"accn":"0001144204-13-061673","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-14"},{"start":"2012-07-01","end":"2012-09-30","val":98000,"accn":"0001193125-12-460071","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-08"},{"start":"2012-07-01","end":"2012-09-30","val":98000,"accn":"0001144204-13-061673","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-14","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":378000,"accn":"0001193125-13-134427","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-29"},{"start":"2012-01-01","end":"2012-12-31","val":378000,"accn":"0001144204-14-018618","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-28","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":86000,"accn":"0001193125-13-219341","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-14"},{"start":"2013-01-01","end":"2013-03-31","val":86000,"accn":"0001144204-14-030373","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-14","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":171000,"accn":"0001193125-13-332635","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-13"},{"start":"2013-01-01","end":"2013-06-30","val":171000,"accn":"0001144204-14-050041","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-14"},{"start":"2013-04-01","end":"2013-06-30","val":85000,"accn":"0001193125-13-332635","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-13"},{"start":"2013-04-01","end":"2013-06-30","val":85000,"accn":"0001144204-14-050041","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-14","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":260000,"accn":"0001144204-13-061673","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-14"},{"start":"2013-01-01","end":"2013-09-30","val":260000,"accn":"0001144204-14-068404","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-14"},{"start":"2013-07-01","end":"2013-09-30","val":89000,"accn":"0001144204-13-061673","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-14"},{"start":"2013-07-01","end":"2013-09-30","val":89000,"accn":"0001144204-14-068404","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-14","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":350000,"accn":"0001144204-14-018618","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-28"},{"start":"2013-01-01","end":"2013-12-31","val":350000,"accn":"0001144204-15-015988","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-13","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":83000,"accn":"0001144204-14-030373","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-14"},{"start":"2014-01-01","end":"2014-03-31","val":83000,"accn":"0001144204-15-031285","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-15","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":182000,"accn":"0001144204-14-050041","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-14"},{"start":"2014-04-01","end":"2014-06-30","val":99000,"accn":"0001144204-14-050041","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-14","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":276000,"accn":"0001144204-14-068404","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-14"},{"start":"2014-07-01","end":"2014-09-30","val":95000,"accn":"0001144204-14-068404","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-14","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":370000,"accn":"0001144204-15-015988","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-13","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":80000,"accn":"0001144204-15-031285","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-15","frame":"CY2015Q1"}]}},"FinancingReceivableAllowanceForCreditLosses":{"label":"Financing Receivable, Allowance for Credit Loss","description":"Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing 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