Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Statement [Abstract]
Net sales	$ 1,034,887	$ 929,240	$ 900,610
Cost of goods sold	645,105	550,849	529,538
Gross profit	389,782	378,391	371,072
Selling, general and administrative expenses	168,713	160,127	163,909
Technical and research expenses	39,941	38,922	35,347
Restructuring expenses, net	106	1,331	5,736
Operating income	181,022	178,011	166,080
Interest income	(3,835)	(2,500)	(2,748)
Interest expense	17,835	17,391	16,332
Pension settlement expense	49,128	0	0
Aviation Manufacturing Jobs Protection (AMJP) grant	0	(5,832)	0
Other expense/(income), net	(14,086)	3,021	13,422
Income before income taxes	131,980	165,931	139,074
Income tax expense	35,472	47,163	41,831
Net income	96,508	118,768	97,243
Net income/(loss) attributable to the noncontrolling interest	746	290	(1,346)
Net income attributable to the Company	$ 95,762	$ 118,478	$ 98,589
Earnings per share attributable to Company shareholders - Basic (in dollars per share)	$ 3.06	$ 3.66	$ 3.05
Earnings per share attributable to Company shareholders - Diluted (in dollars per share)	3.04	3.65	3.05
Dividends declared per share, Class A and Class B (in dollars per share)	$ 0.88	$ 0.81	$ 0.77