Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Income Tax Disclosure [Abstract]
Effective income tax rate	35.70%	31.70%	34.20%	34.20%
Statutory income tax rate			35.00%
U.S. Federal Income Tax Expense:
Current	$ 463	$ (4,583)	$ (2,721)	$ (8,294)
Deferred	(1,337)	1,762	(3,788)	4,299
Total	(874)	(2,821)	(6,509)	(3,995)
State and Local Income Tax Expense:
Current	(61)	(160)	(68)	(256)
Deferred	50	91	(364)	147
Total	(11)	(69)	(432)	(109)
Total Income Tax Expense:
Current	402	(4,743)	(2,789)	(8,550)
Deferred	(1,287)	1,853	(4,152)	4,446
Total	$ (885)	$ (2,890)	$ (6,941)	$ (4,104)