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CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($)
$ in Thousands
Common Stock [Member]
Additional Paid-In Capital [Member]
Earnings Reinvested in the Business [Member]
Treasury Stock [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Total
Beginning balance at Dec. 31, 2024 $ 5,396 $ 117,500 $ 1,782,139 $ (617,210) $ (226,839) $ 1,060,986
Beginning balance (in shares) at Dec. 31, 2024       11,779,321    
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net earnings 0 0 72,049 $ 0 0 72,049
Other comprehensive income (loss) 0 0 0 0 53,360 53,360
Cash dividends paid 0 0 (34,700) 0 0 (34,700)
Share-based compensation 0 6,639 0 0 0 6,639
Non-vested stock issued upon vesting 0 (4,606) 0 $ 4,606 0 0
Non-vested stock issued upon vesting (in shares)       (87,916)    
Benefit plans 0 394 0 $ 1,043 0 1,437
Benefit plans (in shares)       (19,899)    
Other 0 (813) 0 $ (1,837) 0 (2,650)
Other (in shares)       35,060    
Ending balance at Jun. 30, 2025 5,396 119,114 1,819,488 $ (613,398) (173,479) 1,157,121
Ending balance (in shares) at Jun. 30, 2025       11,706,566    
Beginning balance at Mar. 31, 2025 5,396 116,117 1,799,225 $ (613,830) (211,874) 1,095,034
Beginning balance (in shares) at Mar. 31, 2025       11,714,809    
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net earnings 0 0 37,587 $ 0 0 37,587
Other comprehensive income (loss) 0 0 0 0 38,395 38,395
Cash dividends paid 0 0 (17,324) 0 0 (17,324)
Share-based compensation 0 3,739 0 0 0 3,739
Non-vested stock issued upon vesting 0 (633) 0 $ 633 0 0
Non-vested stock issued upon vesting (in shares)       (12,087)    
Other 0 (109) 0 $ (201) 0 (310)
Other (in shares)       3,844    
Ending balance at Jun. 30, 2025 5,396 119,114 1,819,488 $ (613,398) (173,479) 1,157,121
Ending balance (in shares) at Jun. 30, 2025       11,706,566    
Beginning balance at Dec. 31, 2025 5,396 123,668 1,847,014 $ (612,311) (170,253) 1,193,514
Beginning balance (in shares) at Dec. 31, 2025       11,685,819    
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net earnings 0 0 95,529 $ 0 0 95,529
Other comprehensive income (loss) 0 0 0 0 (838) (838)
Cash dividends paid 0 0 (34,867) 0 0 (34,867)
Share-based compensation 0 9,380 0 0 0 9,380
Non-vested stock issued upon vesting 0 (5,843) 0 $ 5,843 0 0
Non-vested stock issued upon vesting (in shares)       (111,515)    
Benefit plans 0 729 0 $ 892 0 1,621
Benefit plans (in shares)       (17,031)    
Other 0 (2,071) 0 $ (2,340) 0 (4,411)
Other (in shares)       44,683    
Ending balance at Jun. 30, 2026 5,396 125,863 1,907,676 $ (607,916) (171,091) 1,259,928
Ending balance (in shares) at Jun. 30, 2026       11,601,956    
Beginning balance at Mar. 31, 2026 5,396 121,971 1,873,758 $ (608,664) (173,580) 1,218,881
Beginning balance (in shares) at Mar. 31, 2026       11,616,224    
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net earnings 0 0 51,359 $ 0 0 51,359
Other comprehensive income (loss) 0 0 0 0 2,489 2,489
Cash dividends paid 0 0 (17,441) 0 0 (17,441)
Share-based compensation 0 5,604 0 0 0 5,604
Non-vested stock issued upon vesting 0 (1,257) 0 $ 1,257 0 0
Non-vested stock issued upon vesting (in shares)       (23,984)    
Other 0 (455) 0 $ (509) 0 (964)
Other (in shares)       9,716    
Ending balance at Jun. 30, 2026 $ 5,396 $ 125,863 $ 1,907,676 $ (607,916) $ (171,091) $ 1,259,928
Ending balance (in shares) at Jun. 30, 2026       11,601,956