Goodwill and Other Intangible Assets (Details) - USD ($) $ in Thousands		12 Months Ended
	Oct. 01, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Goodwill [Roll Forward]
Balance at beginning of period		$ 158,183	$ 150,642
Exchange rate effects		(727)	993
Balance at end of period		165,269	158,183	$ 150,642
Finite-Lived Intangible Assets [Line Items]
Intangible Assets Subject to Amortization		174,772	174,237
Accumulated amortization		(107,058)	(107,442)
Net Intangible Assets Subject to Amortization		67,714	66,795
Intangible assets, net		67,714	66,795
Amortization expense (excluding capitalized software)		7,790	8,113	8,476
Finite Lived Intangible Assets Future Amortization Expense [Abstract]
2022		7,930
2023		7,710
2024		7,395
2025		7,017
2026		6,221
Applied Thin-Film Products [Member]
Goodwill [Roll Forward]
Goodwill acquired during period	$ 6,548		6,548
Barry Industries [Member]
Goodwill [Roll Forward]
Goodwill acquired during period		7,813
Optoelectronic Components [Member]
Goodwill [Roll Forward]
Balance at beginning of period		96,849	96,849
Exchange rate effects		0	0
Balance at end of period		96,849	96,849	96,849
Optoelectronic Components [Member] | Applied Thin-Film Products [Member]
Goodwill [Roll Forward]
Goodwill acquired during period			0
Optoelectronic Components [Member] | Barry Industries [Member]
Goodwill [Roll Forward]
Goodwill acquired during period		0
Resistors [Member]
Goodwill [Roll Forward]
Balance at beginning of period		35,519	27,978
Exchange rate effects		(727)	993
Balance at end of period		42,605	35,519	27,978
Resistors [Member] | Applied Thin-Film Products [Member]
Goodwill [Roll Forward]
Goodwill acquired during period			6,548
Resistors [Member] | Barry Industries [Member]
Goodwill [Roll Forward]
Goodwill acquired during period		7,813
Inductors [Member]
Goodwill [Roll Forward]
Balance at beginning of period		25,815	25,815
Exchange rate effects		0	0
Balance at end of period		25,815	25,815	$ 25,815
Inductors [Member] | Applied Thin-Film Products [Member]
Goodwill [Roll Forward]
Goodwill acquired during period			0
Inductors [Member] | Barry Industries [Member]
Goodwill [Roll Forward]
Goodwill acquired during period		0
Patents and Acquired Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets Subject to Amortization		21,207	21,259
Accumulated amortization		(14,212)	(14,340)
Capitalized Software [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets Subject to Amortization		57,909	58,419
Accumulated amortization		(52,729)	(52,990)
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets Subject to Amortization		75,190	71,454
Accumulated amortization		(29,531)	(28,659)
Tradenames [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets Subject to Amortization		20,066	23,105
Accumulated amortization		(10,586)	(11,453)
Other [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets Subject to Amortization		400	0
Accumulated amortization		$ 0	$ 0