Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) (USD $) In Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Condensed Consolidated Statements of Comprehensive Income (Loss) [Abstract]
Net income (loss)	$ 84,928	$ 6,859	$ 197,224	$ (9,477)
Defined benefit plans:
Reclassification of (gain) loss to income	22	(12)	64	(7)
Recognition of pension plan settlements	230		1,290
Pension plan termination adjustment				617
Actuarial loss		(3,684)		(3,684)
Other comprehensive income (loss) before tax	252	(3,696)	1,354	(3,074)
Income tax	(111)	1,369	(587)	1,170
Other comprehensive income (loss), net of tax	141	(2,327)	767	(1,904)
Comprehensive income (loss)	$ 85,069	$ 4,532	$ 197,991	$ (11,381)

The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

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- Definition

Recognition of pension plan settlements

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