Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Statement [Abstract]
Net sales	$ 1,573,217	$ 1,267,945	$ 1,136,539
Cost of sales	818,187	691,561	644,409
Gross profit	755,030	576,384	492,130
Operating expenses:
Research and development and other engineering	59,381	50,807	47,058
Selling	135,004	112,517	112,568
General and administrative	193,176	161,029	157,274
Total operating expenses	387,561	324,353	316,900
Net gain on disposal of assets	(324)	(332)	(6,024)
Income from operations	367,793	252,363	181,254
Interest expense, net and other	(3,662)	(2,012)	(1,730)
Foreign exchange gain (loss), net and other	(5,582)	(787)	(1,167)
Income before taxes	358,549	249,564	178,357
Provision for income taxes	92,102	62,564	44,375
Net income	266,447	187,000	133,982
Translation adjustment, net of tax	(7,313)	14,172	885
Unamortized pension adjustments, net of tax	404	(161)	(1,064)
Cash flow hedge adjustment, net of tax	(268)	390	0
Comprehensive income	$ 259,270	$ 201,401	$ 133,803
Net income per common share:
Earnings Per Share, Basic	$ 6.15	$ 4.28	$ 3.00
Earnings Per Share, Diluted	$ 6.12	$ 4.27	$ 2.98
Weighted average number of shares of common stock outstanding
Basic (in shares)	43,325	43,709	44,735
Diluted (in shares)	43,532	43,841	44,921