Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Consolidated Statements of Comprehensive Income
Net income	$ 27,515	$ 10,785	$ 62,901	$ 35,308
Other comprehensive (loss) income:
Foreign currency translation adjustments	(949)	1,437	(1,769)	1,161
Amortization of actuarial loss and other adjustments from pension plan, net of tax	30	61	84	175
Total other comprehensive (loss) income:	(919)	1,498	(1,685)	1,336
Comprehensive income	$ 26,596	$ 12,283	$ 61,216	$ 36,644