CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS (LOSS) - UNAUDITED - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Income Statement [Abstract]
Net sales	$ 151,911	$ 122,382	$ 444,588	$ 380,394
Cost of goods sold	98,565	76,720	285,054	244,446
Gross margin	53,346	45,662	159,534	135,948
Selling, general and administrative expenses	24,003	19,922	68,029	59,184
Research and development expenses	6,207	6,454	18,695	18,170
Restructuring charges	492	319	1,434	551
Operating earnings	22,644	18,967	71,376	58,043
Other (expense) income:
Interest expense	(342)	(514)	(1,490)	(1,577)
Interest income	167	230	610	689
Other expense, net	(5,171)	(108,502)	(10,530)	(132,786)
Total other expense, net	(5,346)	(108,786)	(11,410)	(133,674)
Earnings (loss) before income taxes	17,298	(89,819)	59,966	(75,631)
Income tax expense (benefit)	5,500	(25,923)	15,331	(24,600)
Net earnings (loss)	$ 11,798	$ (63,896)	$ 44,635	$ (51,031)
Earnings (loss) per share:
Basic	$ 0.37	$ (1.97)	$ 1.39	$ (1.58)
Diluted	$ 0.37	$ (1.97)	$ 1.38	$ (1.58)
Basic weighted – average common shares outstanding:	31,865	32,379	32,018	32,365
Effect of dilutive securities	225	0	220	0
Diluted weighted – average common shares outstanding:	32,090	32,379	32,238	32,365
Cash dividends declared per share	$ 0.04	$ 0.04	$ 0.12	$ 0.12