Quarterly report pursuant to Section 13 or 15(d)

Changes in Equity - Changes in Equity (Details)

v3.24.3
Changes in Equity - Changes in Equity (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2024
Jun. 30, 2024
Mar. 31, 2024
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Sep. 30, 2024
Sep. 30, 2023
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Beginning balance $ 1,206,421 $ 1,122,449 $ 1,043,196 $ 887,550 $ 829,051 $ 772,887 $ 1,043,196 $ 772,887
Net income 106,594 114,589 114,417 105,574 100,393 86,568 335,600 292,535
Issuance of common stock related to stock split     0          
Dividends paid (26,915) (26,894) (26,907) (24,952) (24,966) (25,061)    
Special dividends paid (229,834)              
Share-based compensation, net of forfeitures 2,437 2,642 3,416 2,752 2,806 2,370    
Repurchases of common stock and related excise taxes (6,134) (6,344) (10,445) (5,995) (19,708) (6,749)    
Shares exchanged for tax withholdings (416)   (1,207) (345)   (939)    
Periodic pension costs, net of income taxes (21) (21) (21) (26) (26) (25) (63) (77)
Ending balance $ 1,052,132 $ 1,206,421 $ 1,122,449 $ 964,558 $ 887,550 $ 829,051 $ 1,052,132 $ 964,558
Cash dividends per share of common stock (in dollars per share) $ 11.17 $ 1.17 $ 1.17 $ 1.08 $ 1.08 $ 1.08 $ 13.51 $ 3.24
Periodic pension costs, net of income taxes $ 6 $ 5 $ 6 $ 7 $ (8)   $ 17 $ 21
O 2024 Q3 Dividends                
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Cash dividends per share of common stock (in dollars per share) $ 1.17              
S 2024 Q3 Dividends                
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Cash dividends per share of common stock (in dollars per share) $ 10.00              
Common Stock                
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Beginning balance (in shares) 22,983,392 22,993,479 23,007,681 23,037,435 23,079,960 23,087,037 23,007,681 23,087,037
Beginning balance $ 231 $ 231 $ 78 $ 78 $ 78 $ 78 $ 78 $ 78
Issuance of common stock related to stock split     $ 153          
Share-based compensation, net of forfeitures (in shares) 1,599   8,373 1,782   5,268    
Repurchases of common stock and related excise taxes (in shares) (7,387) (10,087) (20,106) (10,692) (42,525) (10,881)    
Shares exchanged for tax withholdings (in shares) (479)   (2,469) (543)   (1,464)    
Ending balance (in shares) 22,977,125 22,983,392 22,993,479 23,027,982 23,037,435 23,079,960 22,977,125 23,027,982
Ending balance $ 231 $ 231 $ 231 $ 78 $ 78 $ 78 $ 231 $ 78
Treasury Stock                
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Beginning balance (158,296) (151,952) (144,998) (128,502) (108,794) (104,139) (144,998) (104,139)
Share-based compensation, net of forfeitures 2,430   4,698 990   3,033    
Repurchases of common stock and related excise taxes (6,134) (6,344) (10,445) (5,995) (19,708) (6,749)    
Shares exchanged for tax withholdings (416)   (1,207) (345)   (939)    
Ending balance (162,416) (158,296) (151,952) (133,852) (128,502) (108,794) (162,416) (133,852)
Additional Paid-in Capital                
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Beginning balance 15,863 13,163 14,613 10,582 7,733 8,293 14,613 8,293
Issuance of common stock related to stock split     (153)          
Share-based compensation, net of forfeitures 528 2,700 (1,297) 1,800 2,849 (560)    
Ending balance 16,391 15,863 13,163 12,382 10,582 7,733 16,391 12,382
Accum. Other Comp. Income (Loss)                
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Beginning balance 1,789 1,810 1,831 2,465 2,491 2,516 1,831 2,516
Periodic pension costs, net of income taxes (21) (21) (21) (26) (26) (25)    
Ending balance 1,768 1,789 1,810 2,439 2,465 2,491 1,768 2,439
Retained Earnings                
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Beginning balance 1,346,834 1,259,197 1,171,672 1,002,927 927,543 866,139 1,171,672 866,139
Net income 106,594 114,589 114,417 105,574 100,393 86,568    
Dividends paid (26,915) (26,894) (26,907) (24,952) (24,966) (25,061)    
Special dividends paid (229,834)              
Share-based compensation, net of forfeitures (521) (58) 15 (38) (43) (103)    
Ending balance $ 1,196,158 $ 1,346,834 $ 1,259,197 $ 1,083,511 $ 1,002,927 $ 927,543 $ 1,196,158 $ 1,083,511