CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (USD $)
In Thousands
Total
Common Stock
Treasury Stock
Additional Capital
Accumulated Other Comprehensive Loss
Accumulated Deficit
Comprehensive Income
Balance at Dec. 31, 2010$ 496,912$ 29$ (14,001)$ 614,705$ (25)$ (103,796) 
Balance (in shares) at Dec. 31, 2010 28,579(657)    
Increase (Decrease) in Stockholders' Equity       
Common stock issued on exercise of stock options203  203   
Common stock issued on exercise of stock options (in shares) 15     
Common stock issued under employee stock purchase plan180  180   
Common stock issued under employee stock purchase plan (in shares) 7     
Common stock issued on vesting of restricted stock (in shares) 19     
Common stock issued pursuant to restricted stock agreement, net of shares tendered to satisfy required tax withholding(1,129)  (1,129)   
Common stock issued pursuant to restricted stock agreement, net of shares tendered to satisfy required tax withholding (in shares) 74     
Purchase of treasury stock(16,571) (16,571)    
Purchase of treasury stock (in shares)  (520)    
Share-based compensation7,105  7,105   
Comprehensive income:       
Foreign currency translation adjustment(4,590)   (4,590) (4,590)
Unrealized loss on derivatives, net of taxes(179)   (179) (179)
Unrealized loss on available for sale securities, net of tax(238)   (238) (238)
Net income18,833    18,83318,833
Total comprehensive income13,826     13,826
Balance at Sep. 30, 2011$ 500,526$ 29$ (30,572)$ 621,064$ (5,032)$ (84,963) 
Balance (in shares) at Sep. 30, 2011 28,694(1,177)