Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Statement of Comprehensive Income [Abstract]
Net earnings	$ 30,110	$ 29,782	$ 52,820	$ 58,712
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment	(1,116)	(6,951)	8,308	(9,793)
Unrealized (loss) gain on cash flow hedge	(554)	850	(1,065)	2,423
Change in postretirement benefit plans	2	(34)	102	(61)
Other comprehensive income (loss)	(1,668)	(6,135)	7,345	(7,431)
Comprehensive income	$ 28,442	$ 23,647	$ 60,165	$ 51,281