Consolidated Statement of Changes in Stockholders' Equity and Accumulated Other Comprehensive Loss (Unaudited) (USD $) In Thousands	Total	Common Stock Voting	Common Stock Non-Voting	Additional Paid-In Capital	Treasury Stock Common Stock Voting	Accumulated Deficit	Accumulated Other Comprehensive Loss
Balance at Dec. 31, 2010	$ 234,476	$ 108	$ 9	$ 340,615	$ (70,000)	$ (34,605)	$ (1,651)
Comprehensive income:
Net income	22,717					22,717
Cumulative translation adjustment and foreign currency exchange hedge, net of tax	(324)						(324)
Unrealized net gain on securities available-for-sale, net of tax	282						282
Total comprehensive income	22,675
Stock-based compensation	3,099			3,099
Exercise of stock options and grants of restricted stock, net of surrenders on stock option exercises and tax on stock vesting	1,923	2		1,921
Cash dividend on common stock	(6,804)					(6,804)
Conversion of Series B Preferred Stock to common stock voting	30,315			(20,687)	51,002
Tax benefit from the exercise of warrants in prior years	4,239			4,239
Windfall tax benefits from stock-based compensation	2,934			2,934
Balance at Jun. 30, 2011	$ 292,857	$ 110	$ 9	$ 332,121	$ (18,998)	$ (18,692)	$ (1,693)