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Condensed Consolidated Statements Of Equity - USD ($)
$ in Thousands
Total
Common Stock [Member]
Capital Surplus [Member]
Accumulated Other Comprehensive Loss [Member]
 [1]
Retained Earnings [Member]
Treasury Stock [Member]
Noncontrolling Interests [Member]
Balance at Dec. 31, 2019 $ 2,057,780 $ 604 $ 32,274 $ (89,288) $ 2,367,481 $ (253,937) $ 646
Net income including noncontrolling interests 53,162       53,162    
Other comprehensive income (loss) 804     804      
Cumulative-effect adjustment (2) [2] (2,307)       (2,307)    
Common stock issued under share-based compensation plans 1 1          
Tax withholding for common stock issued under share-based compensation plans (2,574)   (2,574)        
Common stock issued under employee stock purchase plan 4,887   4,887        
Common stock dividends (13,280)       (13,372)    
Common stock dividends, accrued dividend shares     92        
Repurchases of common stock (99,048)         (99,048)  
Distributions to noncontrolling interests (70)           (70)
Share-based compensation expense 8,510   8,510        
Balance at Sep. 30, 2020 2,007,865 605 43,189 (88,484) 2,404,964 (352,985) 576
Balance at Jun. 30, 2020 1,944,198 605 38,975 (91,172) 2,348,199 (352,985) 576
Net income including noncontrolling interests 61,186       61,186    
Other comprehensive income (loss) 2,688     2,688      
Tax withholding for common stock issued under share-based compensation plans (24)   (24)        
Common stock issued under employee stock purchase plan 1,659   1,659        
Common stock dividends (4,392)       (4,421)    
Common stock dividends, accrued dividend shares     29        
Share-based compensation expense 2,550   2,550        
Balance at Sep. 30, 2020 2,007,865 605 43,189 (88,484) 2,404,964 (352,985) 576
Balance at Dec. 31, 2020 2,053,244 606 47,464 (109,233) 2,480,321 (366,490) 576
Net income including noncontrolling interests 282,033       281,864   169
Other comprehensive income (loss) 1,421     1,421      
Common stock issued under share-based compensation plans 1 1          
Tax withholding for common stock issued under share-based compensation plans (4,020)   (4,020)        
Common stock issued under employee stock purchase plan 5,418   5,418        
Common stock dividends (21,224)       (21,368)    
Common stock dividends, accrued dividend shares     144        
Repurchases of common stock (183,247)         (183,247)  
Distributions to noncontrolling interests (43)           (43)
Share-based compensation expense 8,467   8,467        
Balance at Sep. 30, 2021 2,142,050 607 57,473 (107,812) 2,740,817 (549,737) 702
Balance at Jun. 30, 2021 2,091,177 607 53,204 (106,925) 2,648,109 (504,520) 702
Net income including noncontrolling interests 99,740       99,740    
Other comprehensive income (loss) (887)     (887)      
Tax withholding for common stock issued under share-based compensation plans (249)   (249)        
Common stock issued under employee stock purchase plan 1,857   1,857        
Common stock dividends (6,988)       (7,032)    
Common stock dividends, accrued dividend shares     44        
Repurchases of common stock (45,217)         (45,217)  
Share-based compensation expense 2,617   2,617        
Balance at Sep. 30, 2021 $ 2,142,050 $ 607 $ 57,473 $ (107,812) $ 2,740,817 $ (549,737) $ 702
[1] Represents cumulative foreign currency translation adjustments and post retirement liability adjustments.
[2] Represents adjustment to retained earnings upon the adoption of Accounting Standards Codification Topic 326.