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Excludes capital lease obligations.","units":{"USD":[{"end":"2010-12-31","val":14939000,"accn":"0001193125-12-099141","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-06","frame":"CY2010Q4I"},{"end":"2010-12-31","val":14939000,"accn":"0001193125-11-309493","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":14939000,"accn":"0001193125-11-208738","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"end":"2011-06-30","val":995000,"accn":"0001193125-11-208738","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2011Q2I"},{"end":"2011-09-30","val":1451000,"accn":"0001193125-11-309493","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":958000,"accn":"0001193125-12-099141","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-06","frame":"CY2011Q4I"}]}},"LongTermLineOfCredit":{"label":"Long-term Line of Credit, Noncurrent","description":"The carrying value as of the balance sheet date of the noncurrent portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. 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