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Condensed Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands | Common Stock | Paid-in Capital | Accumulated Other Comprehensive Earnings (Loss) | Retained Earnings | Deferred Compensation | Treasury Shares at Cost | Total
--- | --- | --- | --- | --- | --- | --- | ---
Beginning balance at Dec. 31, 2023 | $ 1,371 | $ 361,660 | $ (166,303) | $ 1,609,785 | $ 13,539 | $ (406,538) | $ 1,413,514
Beginning balance (in shares) at Dec. 31, 2023 | 91,280,094 |  |  |  |  |  |
Increase Decrease In Shareholders Equity Roll Forward |  |  |  |  |  |  |
Net earnings |  |  |  | 127,900 |  |  | 127,900
Other comprehensive earnings (loss), net of tax |  |  | (12,671) |  |  |  | (12,671)
Deferred compensation |  |  |  |  | (790) | 790 |
Share-based compensation | $ 2 | 4,355 |  |  |  |  | 4,357
Share-based compensation (in shares) | 139,668 |  |  |  |  |  |
Dividends and dividend equivalents |  |  |  | (12,348) |  |  | (12,348)
Ending balance at Mar. 31, 2024 | $ 1,373 | 366,015 | (178,974) | 1,725,337 | 12,749 | (405,748) | 1,520,752
Ending balance (in shares) at Mar. 31, 2024 | 91,419,762 |  |  |  |  |  |
Beginning balance at Dec. 31, 2023 | $ 1,371 | 361,660 | (166,303) | 1,609,785 | 13,539 | (406,538) | 1,413,514
Beginning balance (in shares) at Dec. 31, 2023 | 91,280,094 |  |  |  |  |  |
Increase Decrease In Shareholders Equity Roll Forward |  |  |  |  |  |  |
Net earnings |  |  |  |  |  |  | 304,919
Other comprehensive earnings (loss), net of tax |  |  |  |  |  |  | 59,779
Ending balance at Sep. 30, 2024 | $ 1,375 | 370,710 | (106,524) | 1,875,788 | 11,917 | (404,916) | 1,748,350
Ending balance (in shares) at Sep. 30, 2024 | 91,619,840 |  |  |  |  |  |
Beginning balance at Mar. 31, 2024 | $ 1,373 | 366,015 | (178,974) | 1,725,337 | 12,749 | (405,748) | 1,520,752
Beginning balance (in shares) at Mar. 31, 2024 | 91,419,762 |  |  |  |  |  |
Increase Decrease In Shareholders Equity Roll Forward |  |  |  |  |  |  |
Net earnings |  |  |  | 81,992 |  |  | 81,992
Other comprehensive earnings (loss), net of tax |  |  | (7,843) |  |  |  | (7,843)
Deferred compensation |  |  |  |  | 434 | (434) |
Share-based compensation | $ 1 | 3,083 |  |  |  |  | 3,084
Share-based compensation (in shares) | 72,346 |  |  |  |  |  |
Dividends and dividend equivalents |  |  |  | (13,278) |  |  | (13,278)
Ending balance at Jun. 30, 2024 | $ 1,374 | 369,098 | (186,817) | 1,794,051 | 13,183 | (406,182) | 1,584,707
Ending balance (in shares) at Jun. 30, 2024 | 91,492,108 |  |  |  |  |  |
Increase Decrease In Shareholders Equity Roll Forward |  |  |  |  |  |  |
Net earnings |  |  |  | 95,027 |  |  | 95,027
Other comprehensive earnings (loss), net of tax |  |  | 80,293 |  |  |  | 80,293
Deferred compensation |  |  |  |  | (1,266) | 1,266 |
Share-based compensation | $ 1 | 1,612 |  |  |  |  | 1,613
Share-based compensation (in shares) | 127,732 |  |  |  |  |  |
Dividends and dividend equivalents |  |  |  | (13,290) |  |  | (13,290)
Ending balance at Sep. 30, 2024 | $ 1,375 | 370,710 | (106,524) | 1,875,788 | 11,917 | (404,916) | 1,748,350
Ending balance (in shares) at Sep. 30, 2024 | 91,619,840 |  |  |  |  |  |
Beginning balance at Dec. 31, 2024 | $ 1,376 | 367,645 | (173,723) | 1,719,668 | 13,498 | (406,497) | 1,521,967
Beginning balance (in shares) at Dec. 31, 2024 | 91,738,132 |  |  |  |  |  |
Increase Decrease In Shareholders Equity Roll Forward |  |  |  |  |  |  |
Net earnings |  |  |  | 63,214 |  |  | 63,214
Other comprehensive earnings (loss), net of tax |  |  | 30,030 |  |  |  | 30,030
Deferred compensation |  |  |  |  | (1,686) | 1,686 |
Share-based compensation |  | 2,777 |  |  |  |  | 2,777
Share-based compensation (in shares) | 34,602 |  |  |  |  |  |
Dividends and dividend equivalents |  |  |  | (13,776) |  |  | (13,776)
Ending balance at Mar. 31, 2025 | $ 1,376 | 370,422 | (143,693) | 1,769,106 | 11,812 | (404,811) | 1,604,212
Ending balance (in shares) at Mar. 31, 2025 | 91,772,734 |  |  |  |  |  |
Beginning balance at Dec. 31, 2024 | $ 1,376 | 367,645 | (173,723) | 1,719,668 | 13,498 | (406,497) | 1,521,967
Beginning balance (in shares) at Dec. 31, 2024 | 91,738,132 |  |  |  |  |  |
Increase Decrease In Shareholders Equity Roll Forward |  |  |  |  |  |  |
Net earnings |  |  |  |  |  |  | 312,160
Other comprehensive earnings (loss), net of tax |  |  |  |  |  |  | 76,405
Ending balance at Sep. 30, 2025 | $ 1,377 | 374,468 | (97,318) | 1,988,648 | 12,713 | (405,712) | 1,874,176
Ending balance (in shares) at Sep. 30, 2025 | 91,837,835 |  |  |  |  |  |
Beginning balance at Mar. 31, 2025 | $ 1,376 | 370,422 | (143,693) | 1,769,106 | 11,812 | (404,811) | 1,604,212
Beginning balance (in shares) at Mar. 31, 2025 | 91,772,734 |  |  |  |  |  |
Increase Decrease In Shareholders Equity Roll Forward |  |  |  |  |  |  |
Net earnings |  |  |  | 124,336 |  |  | 124,336
Other comprehensive earnings (loss), net of tax |  |  | 18,701 |  |  |  | 18,701
Deferred compensation |  |  |  |  | 799 | (799) |
Share-based compensation | $ 1 | 2,117 |  |  |  |  | 2,118
Share-based compensation (in shares) | 56,736 |  |  |  |  |  |
Dividends and dividend equivalents |  |  |  | (14,706) |  |  | (14,706)
Ending balance at Jun. 30, 2025 | $ 1,377 | 372,539 | (124,992) | 1,878,736 | 12,611 | (405,610) | 1,734,661
Ending balance (in shares) at Jun. 30, 2025 | 91,829,470 |  |  |  |  |  |
Increase Decrease In Shareholders Equity Roll Forward |  |  |  |  |  |  |
Net earnings |  |  |  | 124,610 |  |  | 124,610
Other comprehensive earnings (loss), net of tax |  |  | 27,674 |  |  |  | 27,674
Deferred compensation |  |  |  |  | 102 | (102) |
Share-based compensation |  | 1,929 |  |  |  |  | 1,929
Share-based compensation (in shares) | 8,365 |  |  |  |  |  |
Dividends and dividend equivalents |  |  |  | (14,698) |  |  | (14,698)
Ending balance at Sep. 30, 2025 | $ 1,377 | $ 374,468 | $ (97,318) | $ 1,988,648 | $ 12,713 | $ (405,712) | $ 1,874,176
Ending balance (in shares) at Sep. 30, 2025 | 91,837,835 |  |  |  |  |  |

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