CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY (USD $) In Thousands, unless otherwise specified	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Treasury Stock
Balance at Dec. 31, 2011	$ 45,471	$ 121	$ 911,987	$ (858,105)	$ (8,532)
Balance (in shares) at Dec. 31, 2011		12,169			1,123
Comprehensive income:
Net income for the nine months ended September 30, 2012	44,306			44,306
Non-cash compensation	3,735		3,735
Issuance of common stock upon exercise of stock options and vesting of restricted stock units, net of withholding taxes	(301)	4	(305)
Issuance of common stock upon exercise of stock options and vesting of restricted stock units, net of withholding taxes (in shares)		377
Purchase of treasury stock	(360)				(360)
Purchase of treasury stock (in shares)					30
Balance at Sep. 30, 2012	$ 92,851	$ 125	$ 915,417	$ (813,799)	$ (8,892)
Balance (in shares) at Sep. 30, 2012		12,546			1,153