v3.26.1
Supplemental equity and other information - Schedule of Accumulated Other Comprehensive Loss, Net of Tax (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Accumulated Other Comprehensive Income (Loss), Net of Tax        
Beginning balance $ 141,437 $ 149,638 $ 154,612 $ 152,634
Other comprehensive income (loss), net of tax 149 [1] 8,487 [1] (3,699) [2] 13,053 [2]
Ending balance 153,262 236,589 153,262 236,589
Amounts reclassified from accumulated other comprehensive income, tax impacts     103 29
Total        
Accumulated Other Comprehensive Income (Loss), Net of Tax        
Beginning balance (62,753) (51,598) (58,905) (56,164)
Other comprehensive income (loss) before reclassifications     (3,972) 12,971
Amounts reclassified from accumulated other comprehensive income     273 82
Other comprehensive income (loss), net of tax 149 [1] 8,487 [1] (3,699) [2] 13,053 [2]
Ending balance (62,604) (43,111) (62,604) (43,111)
Pension and postretirement benefit plans        
Accumulated Other Comprehensive Income (Loss), Net of Tax        
Beginning balance     (74,007) (54,953)
Other comprehensive income (loss) before reclassifications     2,215 (8,851)
Amounts reclassified from accumulated other comprehensive income     273 82
Other comprehensive income (loss), net of tax     2,488 (8,769)
Ending balance (71,519) (63,722) (71,519) (63,722)
Foreign currency translation        
Accumulated Other Comprehensive Income (Loss), Net of Tax        
Beginning balance     15,102 (1,211)
Other comprehensive income (loss) before reclassifications     (6,187) 21,822
Amounts reclassified from accumulated other comprehensive income     0 0
Other comprehensive income (loss), net of tax     (6,187) 21,822
Ending balance $ 8,915 $ 20,611 $ 8,915 $ 20,611
[1] For the three months ended June 30, 2026 and 2025, Other comprehensive income is net of an income tax provision of $29 thousand and an income tax benefit of $1.5 million, respectively.
[2] For the six months ended June 30, 2026 and 2025, Other comprehensive (loss) income is net of an income tax provision of $0.7 million and an income tax benefit of $2.2 million, respectively.