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Consolidated Statements Of Comprehensive Income - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Statement of Comprehensive Income [Abstract]        
Net income $ 63,226 $ 52,038 $ 189,016 $ 173,702
Pension plans and other postretirement benefits:        
Prior service credit (cost) arising during the period, net of income tax expense (benefit) of $0 in third quarter and nine months 2022, $8 in third quarter and nine months 2021 0 27 0 27
Amortization of prior service cost (credit) included in net periodic benefit cost (income), net of income tax expense (benefit) of $(157) in third quarter 2022, $(157) in third quarter 2021, $(470) in nine months 2022, and $(472) in nine months 2021 (500) (496) (1,494) (1,481)
Actuarial net gain (loss) arising during the period, net of income tax expense (benefit) of $583 in third quarter 2022, $(433) in third quarter 2021, $590 in nine months 2022, and $(652) in nine months 2021 1,812 (1,363) 1,828 (2,020)
Amortization of actuarial net loss (gain) included in net periodic benefit cost (income), net of income tax expense (benefit) of $145 in third quarter 2022, $593 in third quarter 2021, $493 in nine months 2022, and $1,697 in nine months 2021 445 1,806 1,515 5,345
Total pension plans and other postretirement benefits 1,757 (26) 1,849 1,871
Foreign currency translation adjustments, net of income tax expense (benefit) of $(194) in third quarter 2022, $(535) in third quarter 2021, $279 in nine months 2022, and $(214) in nine months 2021 (35,973) (7,401) (68,251) (1,081)
Other comprehensive income (loss) (34,216) (7,427) (66,402) 790
Comprehensive income $ 29,010 $ 44,611 $ 122,614 $ 174,492