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Condensed Consolidated Statements of Changes In Shareholders' Equity - USD ($)
$ in Thousands
Total
Cumulative Effect, Period of Adoption, Adjustment
Cumulative Effect, Period Of Adoption, Adjusted Balance
Common Stock
Common Stock
Cumulative Effect, Period Of Adoption, Adjusted Balance
Retained Earnings
Retained Earnings
Cumulative Effect, Period of Adoption, Adjustment
Retained Earnings
Cumulative Effect, Period Of Adoption, Adjusted Balance
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss)
Cumulative Effect, Period Of Adoption, Adjusted Balance
Beginning balance (in shares) at Dec. 31, 2019       30,523,824 30,523,824          
Beginning balance at Dec. 31, 2019 $ 906,570 $ (12,983) $ 893,587 $ 543,998 $ 543,998 $ 367,794 $ (12,983) $ 354,811 $ (5,222) $ (5,222)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                    
Net income 41,157         41,157        
Other comprehensive income (loss) 10,798               10,798  
Stock options exercised (in shares)       32,000            
Stock options exercised 547     $ 547            
RSU vesting 1,018     1,018            
PSU vesting 458     $ 458            
RSUs released (in shares)       31,708            
PSUs released (in shares)       20,265            
Repurchase of common stock (in shares)       (838,408)            
Repurchase of common stock (25,545)     $ (14,946)   (10,599)        
Dividends paid (19,758)         (19,758)        
Ending balance (in shares) at Sep. 30, 2020       29,769,389            
Ending balance at Sep. 30, 2020 902,262     $ 531,075   365,611     5,576  
Beginning balance (in shares) at Jun. 30, 2020       29,759,209            
Beginning balance at Jun. 30, 2020 885,686     $ 530,422   354,645     619  
Increase (Decrease) in Stockholders' Equity [Roll Forward]                    
Net income 17,606         17,606        
Other comprehensive income (loss) 4,957               4,957  
Stock options exercised (in shares)       16,000            
Stock options exercised 259     $ 259            
RSU vesting 383     383            
PSU vesting 162     $ 162            
RSUs released (in shares)       2,619            
PSUs released (in shares)       0            
Repurchase of common stock (in shares)       (8,439)            
Repurchase of common stock (242)     $ (151)   (91)        
Dividends paid (6,549)         (6,549)        
Ending balance (in shares) at Sep. 30, 2020       29,769,389            
Ending balance at Sep. 30, 2020 $ 902,262     $ 531,075   365,611     5,576  
Beginning balance (in shares) at Dec. 31, 2020 29,727,214     29,727,214            
Beginning balance at Dec. 31, 2020 $ 925,114     $ 530,835   381,999     12,280  
Increase (Decrease) in Stockholders' Equity [Roll Forward]                    
Net income 89,433         89,433        
Other comprehensive income (loss) $ (8,553)               (8,553)  
Stock options exercised (in shares) 5,675     5,675            
Stock options exercised $ 86     $ 86            
RSU vesting 1,242     1,242            
PSU vesting 658     $ 658            
RSUs released (in shares)       45,401            
PSUs released (in shares)       19,272            
Repurchase of common stock (in shares)       (82,953)            
Repurchase of common stock (3,675)     $ (1,482)   (2,193)        
Dividends paid $ (22,291)         (22,291)        
Ending balance (in shares) at Sep. 30, 2021 29,714,609     29,714,609            
Ending balance at Sep. 30, 2021 $ 982,014     $ 531,339   446,948     3,727  
Beginning balance (in shares) at Jun. 30, 2021       29,716,294            
Beginning balance at Jun. 30, 2021 966,780     $ 531,038   427,575     8,167  
Increase (Decrease) in Stockholders' Equity [Roll Forward]                    
Net income 27,422         27,422        
Other comprehensive income (loss) (4,440)               (4,440)  
Stock options exercised (in shares)       4,000            
Stock options exercised 58     $ 58            
RSU vesting 485     485            
PSU vesting 252     $ 252            
RSUs released (in shares)       2,689            
PSUs released (in shares)       19,272            
Repurchase of common stock (in shares)       (27,646)            
Repurchase of common stock (1,114)     $ (494)   (620)        
Dividends paid $ (7,429)         (7,429)        
Ending balance (in shares) at Sep. 30, 2021 29,714,609     29,714,609            
Ending balance at Sep. 30, 2021 $ 982,014     $ 531,339   $ 446,948     $ 3,727