Income Taxes - Components of Income Tax Expense (Benefit) by Jurisdiction and by Classification (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Operating Loss Carryforwards [Line Items]
Effective income tax rate			42.80%	34.00%
U.S. Federal
Current	$ 0	$ 256	$ 0	$ (3,184)
Deferred	(83)	(2,614)	(614)	(2,452)
Total	(83)	(2,358)	(614)	(5,636)
State and local
Current	59	14	86	(7)
Deferred	2	(153)	(133)	(414)
Total	61	(139)	(47)	(421)
Total Income Taxes
Current	59	270	86	(3,191)
Deferred	(81)	(2,767)	(747)	(2,866)
Total	$ (22)	$ (2,497)	$ (661)	$ (6,057)