Discontinued Operations (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Dec. 31, 2011
Discontinued Operations [Abstract]
Revenue	$ 0	$ 149,221
Earnings (loss) from operations before taxes	(786)	12,538
Benefit (provision) for income taxes	22	7,576
(Gain) Loss from discontinued operations, net	(764)	20,114
Assets of Discontinued Operations
Current assets	3,974		2,832
Non-current assets	298		1,609
Total assets of discontinued operations	4,272		4,441
Liabilities of Discontinued Operations
Current liabilities	8,139		31,592
Non-current liabilities	88,768		88,325
Total liabilities of discontinued operations	$ 96,907		$ 119,917