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Long-Term Debt (Schedule Of Interest Expense) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Long-Term Debt [Abstract]
Cash payments for interest	$ 19,375	$ 14,732
Commitment and other fees paid	408	220
Amortization of debt issuance costs and discount or premium on notes	643	687
Change in accrued interest	(5,214)	(4,310)
Other	11	13
Interest expense	$ 15,223	$ 11,342

Interest expense on all other items not previously classified. For example, includes dividends associated with redeemable preferred stock of a subsidiary that is treated as a liability in the parent's consolidated balance sheet.

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