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CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($)
$ in Thousands
Total
Common stock
Paid-in capital
Treasury stock
Accumulated other comprehensive income (loss)
Retained earnings
Balance, beginning of period at Dec. 31, 2019   $ 371,353 $ 1,869,719 $ (283,196) $ 72,708 $ 2,278,650
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Reissuance of treasury stock, net under share-based compensation plans     (18,667) 9,768    
Equity compensation     4,319      
Repurchase of common stock       (119,997)    
Other comprehensive (loss) income, net of tax $ (71,484)       (71,484)  
Net income 149,805         149,805
Cash dividends           (21,150)
Balance, end of period at Mar. 31, 2020 4,241,828 371,353 1,855,371 (393,425) 1,224 2,407,305
Balance, beginning of period at Dec. 31, 2020 4,698,986 371,353 1,862,042 (393,326) 216,821 2,642,096
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Reissuance of treasury stock, net under share-based compensation plans     (15,397) 8,776    
Equity compensation     3,685      
Repurchase of common stock       0    
Other comprehensive (loss) income, net of tax (93,256)       (93,256)  
Net income 150,021         150,021
Cash dividends           (20,522)
Balance, end of period at Mar. 31, 2021 $ 4,732,293 $ 371,353 $ 1,782,041 $ (384,550) $ 123,565 $ 2,839,884