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Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the 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Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.","units":{"USD":[{"end":"2013-12-31","val":5342000,"accn":"0001193125-14-121539","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-28","frame":"CY2013Q4I"},{"end":"2014-12-31","val":9513000,"accn":"0001193125-15-109666","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-27","frame":"CY2014Q4I"}]}},"LongTermDebtCurrent":{"label":"Long-term Debt, Current Maturities","description":"Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.","units":{"USD":[{"end":"2013-06-30","val":1500000,"accn":"0001193125-13-329251","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":1500000,"accn":"0001193125-13-438373","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-12","frame":"CY2013Q3I"},{"end":"2013-12-31","val":1500000,"accn":"0001193125-14-121539","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-28"},{"end":"2013-12-31","val":1500000,"accn":"0001193125-14-192553","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":1500000,"accn":"0001193125-14-310209","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-14"},{"end":"2013-12-31","val":1500000,"accn":"0001193125-14-409424","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":1500000,"accn":"0001193125-15-109666","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-27","frame":"CY2013Q4I"},{"end":"2014-06-30","val":0,"accn":"0001193125-14-310209","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-14","frame":"CY2014Q2I"}]}},"LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths":{"label":"Long-Term Debt, Maturity, Year One","description":"Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2013-12-31","val":1500000,"accn":"0001193125-14-121539","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-28","frame":"CY2013Q4I"},{"end":"2014-12-31","val":9883000,"accn":"0001193125-15-109666","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-27","frame":"CY2014Q4I"}]}},"LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo":{"label":"Long-Term Debt, Maturity, Year Two","description":"Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2013-12-31","val":5375000,"accn":"0001193125-14-121539","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-28","frame":"CY2013Q4I"}]}},"LongTermDebtNoncurrent":{"label":"Long-term Debt, Excluding Current Maturities","description":"Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.","units":{"USD":[{"end":"2013-06-30","val":1125000,"accn":"0001193125-13-329251","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":750000,"accn":"0001193125-13-438373","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-12","frame":"CY2013Q3I"},{"end":"2013-12-31","val":375000,"accn":"0001193125-14-121539","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-28"},{"end":"2013-12-31","val":375000,"accn":"0001193125-14-192553","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":375000,"accn":"0001193125-14-310209","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-14"},{"end":"2013-12-31","val":375000,"accn":"0001193125-14-409424","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":375000,"accn":"0001193125-15-109666","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-27","frame":"CY2013Q4I"},{"end":"2014-06-30","val":0,"accn":"0001193125-14-310209","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-14","frame":"CY2014Q2I"}]}},"LongTermNotesPayable":{"label":"Notes Payable, Noncurrent","description":"Carrying value as of the balance sheet date of notes payable (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion.","units":{"USD":[{"end":"2013-06-30","val":3004000,"accn":"0001193125-13-329251","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":3227000,"accn":"0001193125-13-438373","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-12","frame":"CY2013Q3I"},{"end":"2013-12-31","val":3467000,"accn":"0001193125-14-121539","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-28"},{"end":"2013-12-31","val":4017000,"accn":"0001193125-14-192553","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":4017000,"accn":"0001193125-14-310209","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-14"},{"end":"2013-12-31","val":4017000,"accn":"0001193125-14-409424","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-12"},{"end":"2013-12-31","val":4017000,"accn":"0001193125-15-109666","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":4435000,"accn":"0001193125-14-192553","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":4743000,"accn":"0001193125-14-310209","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-14","frame":"CY2014Q2I"},{"end":"2014-12-31","val":4630000,"accn":"0001193125-15-109666","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-27","frame":"CY2014Q4I"}]}},"LossContingencyDamagesPaidValue":{"label":"Loss Contingency, Damages Paid, Value","description":"Amount of damages paid to the plaintiff in the legal matter.","units":{"USD":[{"end":"2014-04-24","val":1100000,"accn":"0001193125-14-310209","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-14","frame":"CY2014Q1I"},{"end":"2014-11-03","val":1100000,"accn":"0001193125-15-109666","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-27","frame":"CY2014Q3I"}]}},"NetCashProvidedByUsedInFinancingActivities":{"label":"Net Cash Provided by (Used in) Financing Activities","description":"Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term 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to Acquire Businesses, Net of Cash Acquired","description":"The cash outflow associated with the acquisition of a business, net of the cash acquired from the 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to Acquire Intangible Assets","description":"The cash outflow to acquire asset without physical form usually arising from contractual or other legal rights, excluding 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