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CONSOLIDATED STATEMENT OF STOCKHOLDERS EQUITY (Unaudited) (USD $)
In Thousands
Total
Common Stock
Additional Paid-in Capital
Retained Earnings
Accumulated Other Comprehensive Income (Loss)
Beginning Balance at Dec. 31, 2012 $ 933,534 $ 24,204 $ 480,595 $ 424,317 $ 4,418
Beginning Balance, Shares at Dec. 31, 2012   48,409      
Stock-based compensation 6,440 9 6,431    
Stock-based compensation, Shares   18      
Restricted stock used for tax withholdings (1,680) (55) (1,625)    
Restricted stock used for tax withholdings, Shares   (111)      
Excess income taxes related to stock-based compensation (2,015)   (2,015)    
Net income 102,561     102,561  
Dividends (6,041)     (6,041)  
Other comprehensive loss (4,418)       (4,418)
Ending Balance at Jun. 30, 2013 $ 1,028,381 $ 24,158 $ 483,386 $ 520,837  
Ending Balance, Shares at Jun. 30, 2013   48,316