Condensed Consolidated Statements of Stockholders' Equity (Unaudited) (USD $) In Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit
Balance at Dec. 31, 2010	$ 403,866	$ 5	$ 436,794	$ (32,933)
Balance, shares at Dec. 31, 2010		54,718
Issuance of stock, restricted stock and equity-based compensation, shares		556
Issuance of stock, restricted stock and equity-based compensation	3,606		3,606
Redemption of restricted stock for employee income tax and restricted stock forfeitures, shares		(25)
Redemption of restricted stock for employee income tax and restricted stock forfeitures	(15)		(15)
Exercise of warrants, shares		5,724
Exercise of warrants	74,418	1	74,417
Net income	8,894			8,894
Balance at Jun. 30, 2011	$ 490,769	$ 6	$ 514,802	$ (24,039)
Balance, shares at Jun. 30, 2011		60,973