Discontinued Operations (Details) (USD $) In Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010	Dec. 31, 2010
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) from discontinued operations, net of tax	$ 675	$ (2,023)	$ 12,274	$ (15,381)
Assets of Discontinued Operations
Total assets of discontinued operations	22,590		22,590		67,133
Liabilities of Discontinued Operations
Total liabilities of discontinued operations	77,985		77,985		105,642
Discontinued Operations [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue	0	0	0	9,380
Loss on sale, net of taxes	0	(926)	0	(14,203)
(Loss) gain from operations before taxes	(490)	(323)	66	102
Benefit (provision) for income taxes	1,165	(774)	12,208	(1,280)
Gain (loss) from discontinued operations, net of tax	675	(2,023)	12,274	(15,381)
Assets of Discontinued Operations
Current assets	9,500		9,500		52,678
Non-current assets	13,090		13,090		14,455
Total assets of discontinued operations	22,590		22,590		67,133
Liabilities of Discontinued Operations
Current liabilities	10,184		10,184		34,111
Non-current liabilities	67,801		67,801		71,531
Total liabilities of discontinued operations	$ 77,985		$ 77,985		$ 105,642