CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Statement [Abstract]
Revenue	$ 860,903	$ 706,793	$ 590,623
Cost of revenue	482,431	406,465	346,106
Gross profit	378,472	300,328	244,517
Operating expenses:
Research and development and engineering	85,770	72,522	60,996
Selling, general and administrative	158,901	129,155	109,853
Amortization of purchased intangible assets	26,338	16,577	13,970
Restructuring, acquisition and related costs	4,384	18,020	3,810
Total operating expenses	275,393	236,274	188,629
Operating income	103,079	64,054	55,888
Interest income (expense), net	(15,616)	(7,387)	(6,564)
Foreign exchange transaction gains (losses), net	67	(127)	(942)
Other income (expense), net	(371)	(368)	21
Income before income taxes	87,159	56,172	48,403
Income tax provision	13,108	5,841	3,882
Consolidated net income	$ 74,051	$ 50,331	$ 44,521
Earnings per common share (Note 4):
Basic	$ 2.08	$ 1.42	$ 1.27
Diluted	$ 2.06	$ 1.41	$ 1.25
Weighted average common shares outstanding—basic	35,652	35,396	35,144
Weighted average common shares outstanding—diluted	35,909	35,781	35,654