Consolidated Statement of Changes in Equity (Unaudited) (USD $) In Thousands	Total	Accumulated deficit	Accumulated other comprehensive income (loss)	Common stock	Additional paid-in capital
Beginning balance at Dec. 31, 2010	$ 246,431	$ (575,307)	$ 12,816	$ 2,063	$ 806,859
Beginning balance, shares at Dec. 31, 2010				20,630
Net income	112,805	112,805
Stock options exercised, net	346			5	341
Stock options exercised, net, shares				51
Issuance of restricted stock, net	73				73
Issuance of restricted stock, net, shares				4
Stock-based compensation expense	2,001				2,001
Other comprehensive loss	(4,104)		(4,104)
Ending balance at Jun. 30, 2011	$ 357,552	$ (462,502)	$ 8,712	$ 2,068	$ 809,274
Ending balance, shares at Jun. 30, 2011				20,685