CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Net sales	$ 248,266	$ 229,265
Cost of sales	162,872	139,766
Gross margin	85,394	89,499
Selling, general and administrative expenses	57,705	42,413
Research and development expenses	8,260	7,172
Restructuring and impairment charges	69	1,506
Other operating (income) expense, net	(531)	1,215
Operating income	19,891	37,193
Equity income in unconsolidated joint ventures	1,275	2,181
Other income (expense), net	267	2,968
Interest expense, net	(1,069)	(607)
Income before income tax expense	20,364	41,735
Income tax expense	3,764	10,517
Net income	$ 16,600	$ 31,218
Basic earnings per share (in dollars per share)	$ 0.88	$ 1.67
Diluted earnings per share (in dollars per share)	$ 0.87	$ 1.66
Shares used in computing:
Basic earnings per share (in shares)	18,780	18,712
Diluted earnings per share (in shares)	18,999	18,774