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Consolidated Condensed Statements of Comprehensive Income - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Statement of Comprehensive Income [Abstract]    
Net earnings $ 19,415 $ 14,360
Other comprehensive loss:    
Foreign currency translation adjustments 1,758 (2,315)
Pension and postretirement benefits, net of tax (33)  
Comprehensive income $ 21,140 $ 12,045