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
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Net income	$ 30,723	$ 29,307	$ 51,822	$ 44,763
Other comprehensive (loss) income:
Foreign currency translation adjustment	(584)	(3,198)	(699)	(3,425)
Postretirement benefit plan adjustments, net of tax	(8)	(1)	(16)	(25)
Other comprehensive loss	(576)	(3,197)	(683)	(3,400)
Total comprehensive income	$ 30,147	$ 26,110	$ 51,139	$ 41,363