Consolidated Statements of Stockholders' Equity (USD $) In Thousands	Total	Capital Stock, Common	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss
Balance at Dec. 31, 2010	$ 334,187	$ 907	$ 439	$ 335,922	$ (3,081)
Comprehensive income:
Net income	37,412	0	0	37,412	0
Unrealized loss on available-for-sale securities, net of tax	0	0	0	0	0
Total comprehensive income	37,412
Dividends on common stock, $0.04 per share	(3,628)	0	0	(3,628)	0
Balance at Jun. 30, 2011	$ 367,971	$ 907	$ 439	$ 369,706	$ (3,081)