Income Taxes - Tax Reconciliation (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate	34.00%	34.00%	34.00%
Computed expected tax (benefit) expense	$ (2,099)	$ 1,089	$ (3,368)
(Decrease) increase in income tax resulting from state taxes	(122)	126	(392)
Valuation allowance	15,635	1,438	286
All other items	410	52	1,975
Total income tax expense (benefit)	13,824	2,705	(1,499)
Amounts attributable to discontinued operations	600	(289)	(166)
Amounts attributable to continuing operations	$ 13,224	$ 2,994	$ (1,333)