Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 29, 2025	Mar. 30, 2024	Dec. 31, 2024
Segment Reporting Information [Line Items]
Net revenues	$ 715,236	$ 746,279
Cost of products sold (excluding depreciation)	532,702	532,274
Depreciation expense in cost of products sold	46,980	43,598
Total cost of products sold	579,682	575,872
Gross profit	135,554	170,407
Segment operating expenses	52,050	46,973
Segment operating income (loss)	83,504	123,434
Total depreciation expense	50,518	46,923
Capital expenditures	61,569	53,084
Total Assets	4,200,242	4,264,064	$ 4,110,696
Unallocated Selling, General, and Administrative Expenses	(134,739)	(127,736)
Operating income (loss)	815	42,671
Unallocated Other Income (Expense)	(5,043)	1,591
Consolidated Income (Loss) Before Taxes	(4,228)	44,262
Distributors [Member]
Segment Reporting Information [Line Items]
Net revenues	388,493	382,480
OEMs [Member]
Segment Reporting Information [Line Items]
Net revenues	278,346	313,827
EMS Companies [Member]
Segment Reporting Information [Line Items]
Net revenues	48,397	49,972
Industrial [Member]
Segment Reporting Information [Line Items]
Net revenues	244,926	248,128
Automotive [Member]
Segment Reporting Information [Line Items]
Net revenues	257,112	287,302
Military and Aerospace [Member]
Segment Reporting Information [Line Items]
Net revenues	76,317	83,356
Medical [Member]
Segment Reporting Information [Line Items]
Net revenues	36,532	34,389
Other [Member]
Segment Reporting Information [Line Items]
Net revenues	100,349	93,104
Asia [Member]
Segment Reporting Information [Line Items]
Net revenues	284,579	284,007
Europe [Member]
Segment Reporting Information [Line Items]
Net revenues	255,331	271,734
Americas [Member]
Segment Reporting Information [Line Items]
Net revenues	175,326	190,538
MOSFETs [Member]
Segment Reporting Information [Line Items]
Net revenues	142,113	153,173
Cost of products sold (excluding depreciation)	117,507	116,748
Depreciation expense in cost of products sold	13,000	10,952
Total cost of products sold	130,507	127,700
Gross profit	11,606	25,473
Segment operating expenses	20,345	17,426
Segment operating income (loss)	(8,739)	8,047
Total depreciation expense	13,572	11,329
Capital expenditures	46,303	28,562
Total Assets	1,080,665	1,053,432
Diodes [Member]
Segment Reporting Information [Line Items]
Net revenues	140,963	149,130
Cost of products sold (excluding depreciation)	101,829	105,645
Depreciation expense in cost of products sold	11,112	11,115
Total cost of products sold	112,941	116,760
Gross profit	28,022	32,370
Segment operating expenses	6,825	6,359
Segment operating income (loss)	21,197	26,011
Total depreciation expense	11,483	11,486
Capital expenditures	4,329	8,055
Total Assets	735,150	768,304
Optoelectronic Components [Member]
Segment Reporting Information [Line Items]
Net revenues	51,168	49,199
Cost of products sold (excluding depreciation)	36,658	38,403
Depreciation expense in cost of products sold	3,810	3,795
Total cost of products sold	40,468	42,198
Gross profit	10,700	7,001
Segment operating expenses	5,281	5,508
Segment operating income (loss)	5,419	1,493
Total depreciation expense	3,917	3,888
Capital expenditures	712	1,291
Total Assets	354,747	360,604
Resistors [Member]
Segment Reporting Information [Line Items]
Net revenues	179,500	188,196
Cost of products sold (excluding depreciation)	128,472	131,633
Depreciation expense in cost of products sold	10,674	10,092
Total cost of products sold	139,146	141,725
Gross profit	40,354	46,471
Segment operating expenses	9,203	8,298
Segment operating income (loss)	31,151	38,173
Total depreciation expense	10,864	10,270
Capital expenditures	3,047	11,302
Total Assets	976,991	1,038,302
Inductors [Member]
Segment Reporting Information [Line Items]
Net revenues	84,121	88,651
Cost of products sold (excluding depreciation)	62,282	57,848
Depreciation expense in cost of products sold	4,242	4,016
Total cost of products sold	66,524	61,864
Gross profit	17,597	26,787
Segment operating expenses	3,695	3,606
Segment operating income (loss)	13,902	23,181
Total depreciation expense	4,283	4,044
Capital expenditures	584	1,133
Total Assets	334,823	352,751
Capacitors [Member]
Segment Reporting Information [Line Items]
Net revenues	117,371	117,930
Cost of products sold (excluding depreciation)	85,954	81,997
Depreciation expense in cost of products sold	4,142	3,628
Total cost of products sold	90,096	85,625
Gross profit	27,275	32,305
Segment operating expenses	6,701	5,776
Segment operating income (loss)	20,574	26,529
Total depreciation expense	4,184	3,682
Capital expenditures	5,975	2,067
Total Assets	467,561	461,157
Corporate Other [Member]
Segment Reporting Information [Line Items]
Net revenues	0	0
Cost of products sold (excluding depreciation)	0	0
Depreciation expense in cost of products sold	0	0
Total cost of products sold	0	0
Gross profit	0	0
Segment operating expenses	0	0
Segment operating income (loss)	0	0
Total depreciation expense	2,215	2,224
Capital expenditures	619	674
Total Assets	250,305	229,514
Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating income (loss)	83,504	123,434
Segment Reconciling Items [Member]
Segment Reporting Information [Line Items]
Unallocated Selling, General, and Administrative Expenses	(82,689)	(80,763)
Unallocated Other Income (Expense)	$ (5,043)	$ 1,591