XML 28 R8.htm IDEA: XBRL DOCUMENT v3.3.1.900
Consolidated Statements of Stockholders' Equity - USD ($)
shares in Thousands, $ in Thousands
Total
Common Stock [Member]
Treasury Stock [Member]
Additional Paid-in Capital [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Retained Earnings [Member]
Beginning Balance at Dec. 31, 2012 $ 234,059 $ 471 $ (39,136) $ 102,133 $ (223) $ 170,814
Beginning Balance, Shares at Dec. 31, 2012   47,136 2,420      
Comprehensive income 89,292       581 88,711
Common stock purchased for treasury (8,323)   $ (8,323)      
Common stock purchased for treasury, shares     340      
Share-based compensation 8,950 $ 6 $ (973) 9,917    
Share-based compensation, Shares   594 40      
Restricted shares forfeited 0 $ 0 $ 0 0 0 0
Restricted shares forfeited, Shares     45      
Exercise of stock options 16,278 $ 12   16,266    
Exercise of stock options, Shares   1,160        
Excess tax benefits 4,588     4,588    
Ending Balance at Dec. 31, 2013 344,844 $ 489 $ (48,432) 132,904 358 259,525
Ending Balance, Shares at Dec. 31, 2013   48,890 2,845      
Comprehensive income 111,073       (393) 111,466
Common stock purchased for treasury (1,676)   $ (1,676)      
Common stock purchased for treasury, shares     38      
Share-based compensation 6,282 $ 3 $ (3,662) 9,941    
Share-based compensation, Shares   317 77      
Restricted shares forfeited 0 $ 0 $ 0 0 0 0
Restricted shares forfeited, Shares     42      
Exercise of stock options 7,825 $ 5   7,820    
Exercise of stock options, Shares   539        
Excess tax benefits 7,884     7,884    
Ending Balance at Dec. 31, 2014 476,232 $ 497 $ (53,770) 158,549 (35) 370,991
Ending Balance, Shares at Dec. 31, 2014   49,746 3,002      
Comprehensive income 130,957       (454) 131,411
Common stock purchased for treasury (11,279)   $ (11,279)      
Common stock purchased for treasury, shares   3,076 288      
Share-based compensation 6,989 $ 3 $ (4,283) 11,269    
Share-based compensation, Shares   324 94      
Restricted shares forfeited 0 $ 0 $ 0 0 0 0
Restricted shares forfeited, Shares     27      
Exercise of stock options 3,489 $ 3   3,486    
Exercise of stock options, Shares   218        
Excess tax benefits 3,863     3,863    
Ending Balance at Dec. 31, 2015 $ 610,251 $ 503 $ (69,332) $ 177,167 $ (489) $ 502,402
Ending Balance, Shares at Dec. 31, 2015   50,288 3,411