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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)
shares in Thousands
Total
Common Stock [Member]
Additional Paid-In Capital [Member]
Treasury Stock [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Retained Earnings [Member]
Balance at Dec. 31, 2013 $ 253,272,000 $ 308,000 $ 135,653,000 $ (138,688,000) $ 29,000 $ 255,970,000
Balance (shares) at Dec. 31, 2013   30,758        
Purchase of treasury stock, at cost (20,769,000) $ 0 0 (20,769,000) 0 0
Exercise of stock options 279,000 0 (180,000) 459,000 0 0
Income tax benefit from stock-based compensation, net 488,000 0 488,000 0 0 0
Stock-based compensation expense 11,053,000 0 1,592,000 9,461,000 0 0
Other 1,288,000 0 216,000 1,072,000 0 0
Dividends paid (69,493,000) 0 0 0 0 (69,493,000)
Unrealized gain (loss) on marketable securities, net of tax (26,000) 0 0 0 (26,000) 0
Net income 28,004,000 0 0 0 0 28,004,000
Balance at Dec. 31, 2014 204,096,000 $ 308,000 137,769,000 (148,465,000) 3,000 214,481,000
Balance (shares) at Dec. 31, 2014   30,758        
Purchase of treasury stock, at cost (67,113,000) $ 0 0 (67,113,000) 0 0
Exercise of stock options 374,000 0 (3,000) 377,000 0 0
Income tax benefit from stock-based compensation, net 2,216,000 0 2,216,000 0 0 0
Stock-based compensation expense 13,345,000 0 4,239,000 9,053,000 0 53,000
Other 1,303,000 0 480,000 823,000 0 0
Dividends paid (21,153,000) 0 0 0 0 (21,153,000)
Unrealized gain (loss) on marketable securities, net of tax (3,000) 0 0 0 (3,000) 0
Net income 39,390,000 0 0 0 0 39,390,000
Balance at Dec. 31, 2015 172,455,000 $ 308,000 144,701,000 (205,325,000) 0 232,771,000
Balance (shares) at Dec. 31, 2015   30,758        
Purchase of treasury stock, at cost (31,669,000) $ 0 0 (31,669,000) 0 0
Repurchse of common stock (144,263,000) $ (31,000) (144,232,000) 0 0 0
Stock Repurchased and Retired During Period, Shares   (3,014)        
Exercise of stock options 598,000 $ 0 (27,000) 625,000 0 0
Stock-based compensation expense 16,643,000 0 8,156,000 8,487,000 0 0
Other 1,372,000 0 642,000 730,000 0 0
Dividends paid (20,599,000) 0 0 0 0 (20,599,000)
Unrealized gain (loss) on marketable securities, net of tax (3,000) 0 0 0 (3,000) 0
Net income 65,991,000 0 0 0 0 65,991,000
Balance at Dec. 31, 2016 $ 60,525,000 $ 277,000 $ 9,240,000 $ (227,152,000) $ (3,000) $ 278,163,000
Balance (shares) at Dec. 31, 2016   27,744