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Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation.","units":{"USD":[{"end":"2009-12-31","val":11324,"accn":"0001193125-12-143430","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-30","frame":"CY2009Q4I"},{"end":"2009-12-31","val":11324,"accn":"0001193125-11-308948","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2009-12-31","val":11324,"accn":"0001193125-11-222393","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2010-06-30","val":22844,"accn":"0001193125-11-222393","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2010Q2I"},{"end":"2010-09-30","val":8806,"accn":"0001193125-11-308948","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2010Q3I"},{"end":"2010-12-31","val":4825,"accn":"0001193125-12-232655","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-15","frame":"CY2010Q4I"},{"end":"2010-12-31","val":4825,"accn":"0001193125-12-143430","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-30"},{"end":"2010-12-31","val":4825,"accn":"0001193125-11-308948","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":4825,"accn":"0001193125-11-222393","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2011-03-31","val":4702,"accn":"0001193125-12-232655","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-15","frame":"CY2011Q1I"},{"end":"2011-06-30","val":3035,"accn":"0001193125-11-222393","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":7412,"accn":"0001193125-11-308948","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":1594,"accn":"0001193125-12-232655","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-15","frame":"CY2011Q4I"},{"end":"2011-12-31","val":1594,"accn":"0001193125-12-143430","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-30"},{"end":"2012-03-31","val":2313,"accn":"0001193125-12-232655","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-15","frame":"CY2012Q1I"}]}},"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. 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