Income Taxes (Income Tax Provision (Benefit)) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Current taxes:
Federal	$ 0	$ (950)	$ 1,275
Foreign	337	0	0
State	145	426	1,278
Deferred taxes:
Federal	23,454	15,968	20,452
Foreign	0	0	0
State	736	1,551	408
Total deferred tax expense	24,190	17,519	20,860
Total income tax expense from continuing operations	24,672	16,995	23,413
Income tax expense (benefit) from discontinued operations	(441)	(393)	(40)
Income tax expense (benefit) for debt extinguishment	$ 0	$ 0	$ (14,847)