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CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($)
shares in Thousands, $ in Thousands
Total
Cumulative Effect, Period of Adoption, Adjustment
Common Stock
Additional Paid in Capital
Retained Earnings
Retained Earnings
Cumulative Effect, Period of Adoption, Adjustment
Accumulated Other Comprehensive Loss (income)
Treasury Stock, Common
Common stock, shares issued, beginning balance (in shares) at Dec. 31, 2019     47,536          
Common stock, shares issued, ending balance (in shares) at Dec. 31, 2020     47,812          
Treasury shares, beginning balance (in shares) at Dec. 31, 2019               1,182
Beginning Balance at Dec. 31, 2019 $ 2,979,320 $ (791) $ 47,536 $ 616,980 $ 2,824,916 $ (791) $ (344,392) $ (165,720)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Net income 335,324       335,324      
Cash dividends (63,221)       (63,221)      
Other comprehensive income (loss) 47,094           47,094  
Shares issued under compensation plans (in shares)     276         (44)
Shares issued under compensation plans 37,732   $ 276 35,223       $ 2,233
Deferred compensation (in shares)               (6)
 Deferred compensation 999     102       $ 897
Treasury shares, ending balance (in shares) at Dec. 31, 2020               1,132
Ending Balance at Dec. 31, 2020 $ 3,336,457   $ 47,812 652,305 3,096,228   (297,298) $ (162,590)
Common stock, shares issued, ending balance (in shares) at Dec. 31, 2021 47,929   47,929          
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Net income $ 485,374       485,374      
Cash dividends (63,648)       (63,648)      
Other comprehensive income (loss) (49,661)           (49,661)  
Shares issued under compensation plans (in shares)     117         (31)
Shares issued under compensation plans 34,453   $ 117 33,989       $ 347
Treasury stock reissued 11,097     6,349       $ 4,748
Treasury stock reissued (in shares)               (28)
Deferred compensation (in shares)               (4)
 Deferred compensation 676     447       $ 229
Treasury shares, ending balance (in shares) at Dec. 31, 2021               1,069
Ending Balance at Dec. 31, 2021 $ 3,754,748   $ 47,929 693,090 3,517,954   (346,959) $ (157,266)
Common stock, shares issued, ending balance (in shares) at Dec. 31, 2022 47,957   47,957          
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Net income $ 363,139       363,139      
Cash dividends (63,789)       (63,789)      
Other comprehensive income (loss) (56,563)           (56,563)  
Shares issued under compensation plans (in shares)     28         (32)
Shares issued under compensation plans 23,502   $ 28 21,930       $ 1,544
Deferred compensation (in shares)               (5)
 Deferred compensation 931     98       $ 833
Treasury shares, ending balance (in shares) at Dec. 31, 2022               1,032
Ending Balance at Dec. 31, 2022 $ 4,021,968   $ 47,957 $ 715,118 $ 3,817,304   $ (403,522) $ (154,889)