Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement Of Income And Comprehensive Income [Abstract]
Net Income	$ 73,733	$ 48,132	$ 37,586
Other comprehensive income (loss):
Unrealized changes in fair value of interest rate swaps, net of income taxes of $82, $(110) and $(126), respectively	298	(371)	(403)
Foreign currency translation adjustments	(251)	(2,769)	1,354
Total other comprehensive income (loss)	47	(3,140)	951
Total comprehensive income	$ 73,780	$ 44,992	$ 38,537