Consolidated Condensed Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Statement of Comprehensive Income [Abstract]
Net earnings	$ 25,969	$ 17,933	$ 67,877	$ 48,957
Other comprehensive loss:
Foreign currency translation adjustments	(3,158)	(5,424)	(1,313)	(13,104)
Pension and postretirement benefits, net of tax	(38)	(16)	(103)	(16)
Comprehensive income	$ 22,773	$ 12,493	$ 66,461	$ 35,837