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Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Accumulated Other Comprehensive Income (Loss) [Roll Forward]      
Equity, beginning balance $ 1,318,014 $ 1,156,183 $ 2,130,825
Other comprehensive income (loss) before reclassifications, net of tax 10,771 84  
Amounts reclassified from AOCI, net of tax 112 120  
Net current-period other comprehensive income (loss) 10,883 204  
Equity, ending balance 1,246,092 1,318,014 1,156,183
Other comprehensive income (loss) before reclassifications, tax amount 235 (28) (38)
Defined Benefit Pension Items      
Accumulated Other Comprehensive Income (Loss) [Roll Forward]      
Equity, beginning balance (74,957) (75,247)  
Other comprehensive income (loss) before reclassifications, net of tax 10,033 170  
Amounts reclassified from AOCI, net of tax 112 120  
Net current-period other comprehensive income (loss) 10,145 290  
Equity, ending balance (64,812) (74,957) (75,247)
Other comprehensive income (loss) before reclassifications, tax amount 3,201 55  
Amounts reclassified from AOCI, tax amount 36 38  
Other      
Accumulated Other Comprehensive Income (Loss) [Roll Forward]      
Equity, beginning balance (349) (263)  
Other comprehensive income (loss) before reclassifications, net of tax 738 (86)  
Amounts reclassified from AOCI, net of tax 0 0  
Net current-period other comprehensive income (loss) 738 (86)  
Equity, ending balance 389 (349) (263)
Other comprehensive income (loss) before reclassifications, tax amount 235 (28)  
Total      
Accumulated Other Comprehensive Income (Loss) [Roll Forward]      
Equity, beginning balance (75,306) (75,510) (77,471)
Equity, ending balance $ (64,423) $ (75,306) $ (75,510)