Goodwill and Other Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Goodwill [Roll Forward]
Balance at beginning of period	$ 201,432	$ 165,269
Goodwill acquired during period	2,213	36,885
Goodwill impairment loss	0	0	$ 0
Purchase price allocation adjustment	(2,639)
Exchange rate effects	410	(722)
Balance at end of period	201,416	201,432	165,269
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization	195,008	191,872
Accumulated amortization	(122,675)	(113,976)
Net intangible assets subject to amortization	72,333	77,896
Intangible assets, net	72,333	77,896
Amortization expense (excluding capitalized software)	9,916	8,127	7,790
Finite Lived Intangible Assets Future Amortization Expense [Abstract]
2024	9,832
2025	9,372
2026	8,555
2027	6,734
2028	5,975
MOSFETs [Member]
Goodwill [Roll Forward]
Balance at beginning of period	36,885	0
Goodwill acquired during period	0	36,885
Purchase price allocation adjustment	(2,639)
Exchange rate effects	0	0
Balance at end of period	34,246	36,885	0
Optoelectronic Components [Member]
Goodwill [Roll Forward]
Balance at beginning of period	96,849	96,849
Goodwill acquired during period	0	0
Purchase price allocation adjustment	0
Exchange rate effects	0	0
Balance at end of period	96,849	96,849	96,849
Resistors [Member]
Goodwill [Roll Forward]
Balance at beginning of period	41,883	42,605
Goodwill acquired during period	2,213	0
Purchase price allocation adjustment	0
Exchange rate effects	410	(722)
Balance at end of period	44,506	41,883	42,605
Inductors [Member]
Goodwill [Roll Forward]
Balance at beginning of period	25,815	25,815
Goodwill acquired during period	0	0
Purchase price allocation adjustment	0
Exchange rate effects	0	0
Balance at end of period	25,815	25,815	$ 25,815
Patents and Acquired Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization	26,053	26,988
Accumulated amortization	(14,931)	(14,743)
Capitalized Software [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization	62,360	58,735
Accumulated amortization	(54,203)	(53,348)
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization	83,895	82,816
Accumulated amortization	(38,664)	(33,021)
Tradenames [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization	22,300	22,933
Accumulated amortization	(14,610)	(12,731)
Other [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization	400	400
Accumulated amortization	$ (267)	$ (133)