CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Net sales	$ 474,230	$ 507,059	$ 520,671
Cost of sales	320,687	378,742	404,274
Gross profit	153,543	128,317	116,397
Operating expenses:
Selling, general and administrative expenses	52,440	49,974	47,595
Research and development expenses	51,212	45,698	45,024
Merger-related costs (income), net	(35,527)	653
Early termination and other charges, net	2,011	4,976	53
Total operating expenses	70,136	101,301	92,672
Operating income:	83,407	27,016	23,725
Interest expense	(1,371)	(18,147)	(22,157)
Foreign currency loss, net	(11,853)	(382)	(22,316)
Loss on early extinguishment of borrowings, net	0	(766)	(42)
Other income, net	3,786	3,110	2,577
Income (loss) from continuing operations before income tax expense	73,969	10,831	(18,213)
Income tax expense (benefit)	17,261	(46,228)	2,200
Income (loss) from continuing operations	56,708	57,059	(20,413)
Income (loss) from discontinued operations, net of tax		287,906	(1,413)
Net income (loss)	$ 56,708	$ 344,965	$ (21,826)
Basic earnings (loss) per common share—
Continuing operations	$ 1.26	$ 1.62	$ (0.59)
Discontinued operations	0	8.18	(0.05)
Total	1.26	9.80	(0.64)
Diluted earnings (loss) per common share—
Continuing operations	1.21	1.35	(0.59)
Discontinued operations	0	6.19	(0.05)
Total	$ 1.21	$ 7.54	$ (0.64)
Weighted average number of shares—
Basic	44,879,412	35,213,525	34,321,888
Diluted	47,709,373	46,503,586	34,321,888
Standard Products Business [Member]
Net sales	$ 433,099	$ 465,519	$ 484,847
Cost of sales	283,503	338,420	368,450
Gross profit	149,596	127,099	116,397
Fab Three Foundry Services [Member]
Net sales	41,131	41,540	35,824
Cost of sales	37,184	40,322	$ 35,824
Gross profit	$ 3,947	$ 1,218