Consolidated Statements of Stockholders' Equity (USD $) In Thousands, except Share data	Common Stock	Additional Paid-In Capital	Treasury Stock	Retained Earnings	Total
Beginning Balance at Dec. 31, 2012	$ 435	$ 359,160	$ (16,388)	$ 29,203	$ 372,410
Beginning Balance (in shares) at Dec. 31, 2012	43,500,032
Issuances of restricted stock		(6,751)	6,751
Amortization of share-based compensation		8,966			8,966
Purchase of treasury stock			(3,562)		(3,562)
Exercise of stock options		(363)	665		302
Net loss				(28,530)	(28,530)
Ending Balance at Sep. 30, 2013	$ 435	$ 361,012	$ (12,534)	$ 673	$ 349,586
Ending Balance (in shares) at Sep. 30, 2013	43,500,032