Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Net sales	$ 244,169	$ 222,362
Cost of goods sold	152,565	133,816
Gross profit	91,604	88,546
Selling, general, and administrative expenses	42,707	37,195
Technical and research expenses	9,889	9,481
Restructuring expenses, net	254	52
Operating income	38,754	41,818
Interest expense, net	3,609	3,569
Other expense/(income), net	(3,928)	600
Income before income taxes	39,073	37,649
Income tax expense	10,998	10,040
Net income	28,075	27,609
Net income attributable to the noncontrolling interest	338	27
Net income attributable to the Company	$ 27,737	$ 27,582
Earnings per share attributable to Company shareholders - Basic (in dollars per share)	$ 0.87	$ 0.85
Earnings per share attributable to Company shareholders - Diluted (in dollars per share)	$ 0.87	$ 0.85
Shares of the Company used in computing earnings per share:
Shares of the Company used in computing earnings per share, basic (in shares)	31,877	32,352
Shares of the Company used in computing earnings per share, diluted (in shares)	31,961	32,401
Dividends declared per share, Class A and Class B (in dollars per share)	$ 0.21	$ 0.20