Acquired Sales Contracts (Tables)

12 Months Ended

Dec. 31, 2011

Acquired Sales Contracts [Abstract]

Schedule Of Acquired Sales Contracts

		December 31, 2011				December 31, 2010
		Assets		Liabilities		Assets		Liabilities
		(In thousands)				(In thousands)
Acquired fair value	$	149,457	$	166,697	$	114,453	$	40,654
Accumulated amortization		(115,322)		(69,699)		(82,376)		(14,613)
Total	$	34,135	$	96,998	$	32,077	$	26,041
Net total			$	(62,863)	$	6,036
Balance Sheet classification:
Other current	$	18,929	$	38,441	$	25,063	$	5,615
Other noncurrent	$	15,206	$	58,557	$	7,014	$	20,426