XML 20 R6.htm IDEA: XBRL DOCUMENT v3.8.0.1
Consolidated Statements of Stockholders' Equity - USD ($)
$ in Thousands
Total
Common Stock [Member]
Additional Paid-In Capital [Member]
Retained Earnings [Member]
Accumulated Other Comprehensive Income/(Loss) [Member]
Beginning Balance at Dec. 31, 2014 $ 1,081,822 $ 113 $ 734,732 $ 349,061 $ (2,084)
Beginning Balance, Shares at Dec. 31, 2014   53,154,666      
Net issuance under stock-based plans 1,262   1,262    
Net issuance under stock-based plans, Shares   414,187      
Stock-based compensation 13,013   13,013    
Tax effect from stock-based plans 837   837    
Stock repurchase (13,294)   (5,119) (8,175)  
Stock repurchase, shares   (369,133)      
Cash dividend (35,969)     (35,969)  
Comprehensive income (net of tax):          
Net issuance under stock-based plans 1,262   1,262    
Net issuance under stock-based plans, Shares   414,187      
Stock-based compensation 13,013   13,013    
Tax effect from stock-based plans 837   837    
Stock repurchase (13,294)   (5,119) (8,175)  
Stock repurchase, shares   (369,133)      
Cash dividend (35,969)     (35,969)  
Net income 122,297     122,297  
Other comprehensive loss (9,087)       (9,087)
Ending Balance at Dec. 31, 2015 1,160,881 $ 113 744,725 427,214 (11,171)
Ending Balance, Shares at Dec. 31, 2015   53,199,720      
Ending Balance, Shares at Dec. 31, 2015   53,199,720      
Net issuance under stock-based plans 6,902   6,902    
Net issuance under stock-based plans, Shares   517,939      
Stock-based compensation 25,228   25,228    
Tax effect from stock-based plans 1,254   1,254    
Stock repurchase $ (1,545)   (627) (918)  
Stock repurchase, shares (44,798) (44,798)      
Cash dividend $ (36,361)     (36,361)  
Comprehensive income (net of tax):          
Net issuance under stock-based plans 6,902   6,902    
Net issuance under stock-based plans, Shares   517,939      
Stock-based compensation 25,228   25,228    
Tax effect from stock-based plans 1,254   1,254    
Stock repurchase $ (1,545)   (627) (918)  
Stock repurchase, shares (44,798) (44,798)      
Cash dividend $ (36,361)     (36,361)  
Net income 104,809     104,809  
Other comprehensive loss (19,376)       (19,376)
Ending Balance at Dec. 31, 2016 1,241,792 $ 113 777,482 494,744 (30,547)
Ending Balance, Shares at Dec. 31, 2016   53,672,861      
Ending Balance, Shares at Dec. 31, 2016   53,672,861      
Net issuance under stock-based plans (12,216)   (12,216)    
Net issuance under stock-based plans, Shares   682,674      
Stock-based compensation $ 24,378   24,378    
Stock repurchase, shares 0        
Cash dividend $ (38,178)     (38,178)  
Comprehensive income (net of tax):          
Net issuance under stock-based plans (12,216)   (12,216)    
Net issuance under stock-based plans, Shares   682,674      
Stock-based compensation $ 24,378   24,378    
Stock repurchase, shares 0        
Cash dividend $ (38,178)     (38,178)  
Net income 339,132     339,132  
Other comprehensive loss 33,999       33,999
Ending Balance at Dec. 31, 2017 $ 1,588,907 $ 113 $ 789,644 $ 795,698 $ 3,452
Ending Balance, Shares at Dec. 31, 2017   54,355,535      
Ending Balance, Shares at Dec. 31, 2017   54,355,535