Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Statement of Comprehensive Income [Abstract]
Net earnings	$ 33,837	$ 29,075	$ 94,892	$ 81,895
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment	21,638	(14,425)	5,661	(6,117)
Unrealized loss on cash flow hedge	0	0	0	(1,065)
Change in postretirement benefit plans	(1)	2	151	104
Other comprehensive income (loss)	21,637	(14,423)	5,812	(7,078)
Comprehensive income	$ 55,474	$ 14,652	$ 100,704	$ 74,817