v3.26.1
Accumulated Other Comprehensive Earnings (Loss) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Accumulated other comprehensive earnings (loss), net of tax    
Balance at the beginning of the period $ 940,972  
Balance at the end of the period 949,234 $ 879,352
Foreign Currency Translation    
Accumulated other comprehensive earnings (loss), net of tax    
Balance at the beginning of the period (22,432) (24,787)
Other comprehensive earnings (loss) before reclassifications (88) 36
Other comprehensive earnings (loss) net of tax (88) 36
Balance at the end of the period (22,520) (24,751)
Investments    
Accumulated other comprehensive earnings (loss), net of tax    
Balance at the beginning of the period 1,512 1,184
Other comprehensive earnings (loss) before reclassifications (3,251) 2,127
Reclassifications from accumulated other comprehensive loss (12) (16)
Other comprehensive earnings (loss) net of tax (3,263) 2,111
Balance at the end of the period (1,751) 3,295
Foreign Currency Derivatives    
Accumulated other comprehensive earnings (loss), net of tax    
Balance at the beginning of the period 70 (621)
Other comprehensive earnings (loss) before reclassifications (168) (31)
Reclassifications from accumulated other comprehensive loss (11) 180
Other comprehensive earnings (loss) net of tax (179) 149
Balance at the end of the period (109) (472)
Commodity Derivatives    
Accumulated other comprehensive earnings (loss), net of tax    
Balance at the beginning of the period (1,325) (1,642)
Other comprehensive earnings (loss) before reclassifications 232 798
Reclassifications from accumulated other comprehensive loss 803 675
Other comprehensive earnings (loss) net of tax 1,035 1,473
Balance at the end of the period (290) (169)
Postretirement and Pension Benefits    
Accumulated other comprehensive earnings (loss), net of tax    
Balance at the beginning of the period 1,674 2,448
Reclassifications from accumulated other comprehensive loss (136) (155)
Other comprehensive earnings (loss) net of tax (136) (155)
Balance at the end of the period 1,538 2,293
Accumulated Other Comprehensive Earnings (Loss)    
Accumulated other comprehensive earnings (loss), net of tax    
Balance at the beginning of the period (20,501) (23,418)
Other comprehensive earnings (loss) before reclassifications (3,275) 2,930
Reclassifications from accumulated other comprehensive loss 644 684
Other comprehensive earnings (loss) net of tax (2,631) 3,614
Balance at the end of the period $ (23,132) $ (19,804)