Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Net income	$ 82,406	$ 75,629	$ 64,566
Other comprehensive (loss) income:
Foreign currency translation adjustment	(5,022)	2,512	3,301
Adjustment to post-retirement benefit liability, net of tax	1,403	136	(371)
Other comprehensive (loss) income	(3,619)	2,648	2,930
Total comprehensive income	$ 78,787	$ 78,277	$ 67,496