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Condensed Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Statement of Comprehensive Income [Abstract]        
Foreign currency translation, taxes $ 1,274 $ 140 $ 7,021 $ 6,114
Pension and other postretirement effects, taxes $ (471) $ (421) $ (1,414) $ (1,263)