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Consolidated Statements of Shareholders' Equity - USD ($)
$ in Thousands
Total
Cumulative Effect, Period Of Adoption, Adjustment
Common Stock
Retained Earnings
Retained Earnings
Cumulative Effect, Period Of Adoption, Adjustment
Stock in Rabbi Trust Assumed in Acquisition
Rabbi Trust Obligation
Accumulated Other Comprehensive Income (Loss)
Beginning balance (in shares) at Dec. 31, 2020     28,579,000          
Beginning balance at Dec. 31, 2020 $ 893,421 $ (17,051) $ 400,582 $ 478,489 $ (17,051) $ (2,243) $ 2,243 $ 14,350
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Net income 85,122     85,122        
Cash dividends declared (17,086)     (17,086)        
Change in Rabbi Trust obligation 0         452 (452)  
Stock repurchases (in shares)     (107,000)          
Stock repurchases (4,036)   $ (4,036)          
Stock withheld for payment of taxes (in shares)     (13,000)          
Stock withheld for payment of taxes (506)   $ (506)          
Stock-based compensation (in shares)     65,000          
Stock-based compensation 2,018   $ 2,018          
Other comprehensive income (12,132)             (12,132)
Ending balance (in shares) at Sep. 30, 2021     28,524,000          
Ending balance at Sep. 30, 2021 929,750   $ 398,058 529,474   (1,791) 1,791 2,218
Beginning balance (in shares) at Jun. 30, 2021     28,492,000          
Beginning balance at Jun. 30, 2021 904,510   $ 397,704 507,531   (1,928) 1,928 (725)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Net income 27,643     27,643        
Cash dividends declared (5,700)     (5,700)        
Change in Rabbi Trust obligation 0         137 (137)  
Stock withheld for payment of taxes (in shares)     (6,000)          
Stock withheld for payment of taxes (182)   $ (182)          
Stock-based compensation (in shares)     38,000          
Stock-based compensation 536   $ 536          
Other comprehensive income 2,943             2,943
Ending balance (in shares) at Sep. 30, 2021     28,524,000          
Ending balance at Sep. 30, 2021 $ 929,750   $ 398,058 529,474   (1,791) 1,791 2,218
Beginning balance (in shares) at Dec. 31, 2021 35,629,177   35,629,000          
Beginning balance at Dec. 31, 2021 $ 1,230,575   $ 722,671 532,874   (1,803) 1,803 (24,970)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Net income 108,503     108,503        
Cash dividends declared (23,538)     (23,538)        
Change in Rabbi Trust obligation 0         218 (218)  
Stock withheld for payment of taxes (in shares)     (17,000)          
Stock withheld for payment of taxes (603)   $ (603)          
Stock-based compensation (in shares)     100,000          
Stock-based compensation 2,626   $ 2,626          
Other comprehensive income $ (333,066)             (333,066)
Ending balance (in shares) at Sep. 30, 2022 35,711,754   35,712,000          
Ending balance at Sep. 30, 2022 $ 984,497   $ 724,694 617,839   (1,585) 1,585 (358,036)
Beginning balance (in shares) at Jun. 30, 2022     35,684,000          
Beginning balance at Jun. 30, 2022 1,062,343   $ 723,956 587,739   (1,573) 1,573 (249,352)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Net income 37,949     37,949        
Cash dividends declared (7,849)     (7,849)        
Change in Rabbi Trust obligation 0         (12) 12  
Stock withheld for payment of taxes (in shares)     0          
Stock withheld for payment of taxes 0   $ 0          
Stock-based compensation (in shares)     28,000          
Stock-based compensation 738   $ 738          
Other comprehensive income $ (108,684)             (108,684)
Ending balance (in shares) at Sep. 30, 2022 35,711,754   35,712,000          
Ending balance at Sep. 30, 2022 $ 984,497   $ 724,694 $ 617,839   $ (1,585) $ 1,585 $ (358,036)