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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $)
In Thousands, unless otherwise specified
Common Stock
Additional Paid-in Capital
Retained Earnings
Treasury Stock
Total
Balance at Dec. 31, 2013 $ 906 $ 602,469 $ 989,451 $ (1,015,473) $ 577,353
Balance (in shares) at Dec. 31, 2013 90,632        
Increase (Decrease) in Stockholders' Equity          
Net income     76,790   76,790
Cash dividends declared     (22,339)   (22,339)
Issuance of common stock from stock options exercised 6 12,766     12,772
Issuance of common stock from stock options exercised (in shares) 658        
Tax impact of stock options exercised, net of cancellations   6,377     6,377
Stock-based compensation   11,947     11,947
Issuance of restricted stock, net of forfeitures 1       1
Issuance of restricted stock, net of forfeitures (in shares) 53        
Treasury stock purchases   2,696   (143,023) (140,327)
Balance at Sep. 30, 2014 $ 913 $ 636,255 $ 1,043,902 $ (1,158,496) $ 522,574
Balance (in shares) at Sep. 30, 2014 91,343