Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 3,050	$ 21,806	$ 24,844
Other comprehensive income (loss), net of tax:
Foreign currency translation	3,248	(4,807)	(3,083)
Net change in market value of interest rate swap	0	212	609
Net change in market value of investments	99	(134)	(25)
Other comprehensive income (loss)	3,347	(4,729)	(2,499)
Comprehensive income	$ 6,397	$ 17,077	$ 22,345