CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $) In Thousands, unless otherwise specified	Total	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]
Balance at Dec. 31, 2008	$ 95,537	$ 4	$ (10,288)	$ 248,441	$ (142,620)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	54,099	0	0	0	54,099
Balance at Dec. 31, 2009	155,793	4	(10,367)	254,677	(88,521)
Balance at Jan. 30, 2010
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(69,142)	0	0	0	(69,142)
Balance at Dec. 31, 2010	200,101	6	(10,496)	368,254	(157,663)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	7,872	0	0	0	7,872
Balance at Dec. 31, 2011	$ 215,279	$ 6	$ (10,461)	$ 375,525	$ (149,791)