v3.25.2
Segment Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 28, 2025
Jun. 29, 2024
Jun. 28, 2025
Jun. 29, 2024
Dec. 31, 2024
Segment Reporting Information [Line Items]          
Net revenues $ 762,250 $ 741,239 $ 1,477,486 $ 1,487,518  
Cost of products sold (excluding depreciation) 564,479 532,391 1,097,181 1,064,665  
Depreciation expense in cost of products sold 49,088 45,978 96,068 89,576  
Total cost of products sold 613,567 578,369 1,193,249 1,154,241  
Gross profit 148,683 162,870 284,237 333,277  
Segment operating expenses 56,620 49,557 108,670 96,530  
Segment operating income (loss) 92,063 113,313 175,567 236,747  
Total depreciation expense 52,679 49,218 103,197 96,141  
Capital expenditures 64,598 62,564 126,167 115,648  
Total Assets 4,221,655 4,152,701 4,221,655 4,152,701 $ 4,110,696
Unallocated Selling, General, and Administrative Expenses (126,565) (124,953) (261,304) (252,689)  
Operating income (loss) 22,118 37,917 22,933 80,588  
Unallocated Other Income (Expense) (9,841) (1,646) (14,884) (55)  
Consolidated Income Before Taxes 12,277 36,271 8,049 80,533  
Distributors [Member]          
Segment Reporting Information [Line Items]          
Net revenues 430,159 411,508 818,652 793,988  
OEMs [Member]          
Segment Reporting Information [Line Items]          
Net revenues 277,255 279,111 555,601 592,938  
EMS Companies [Member]          
Segment Reporting Information [Line Items]          
Net revenues 54,836 50,620 103,233 100,592  
Industrial [Member]          
Segment Reporting Information [Line Items]          
Net revenues 267,028 262,134 511,954 510,262  
Automotive [Member]          
Segment Reporting Information [Line Items]          
Net revenues 267,423 268,099 524,535 555,401  
Military and Aerospace [Member]          
Segment Reporting Information [Line Items]          
Net revenues 80,488 80,569 156,805 163,925  
Medical [Member]          
Segment Reporting Information [Line Items]          
Net revenues 37,899 39,456 74,431 73,845  
Other [Member]          
Segment Reporting Information [Line Items]          
Net revenues 109,412 90,981 209,761 184,085  
Asia [Member]          
Segment Reporting Information [Line Items]          
Net revenues 317,479 283,489 602,058 567,496  
Europe [Member]          
Segment Reporting Information [Line Items]          
Net revenues 256,489 265,153 511,820 536,887  
Americas [Member]          
Segment Reporting Information [Line Items]          
Net revenues 188,282 192,597 363,608 383,135  
MOSFETs [Member]          
Segment Reporting Information [Line Items]          
Net revenues 148,633 155,053 290,746 308,226  
Cost of products sold (excluding depreciation) 125,546 120,953 243,053 237,701  
Depreciation expense in cost of products sold 13,708 12,531 26,708 23,483  
Total cost of products sold 139,254 133,484 269,761 261,184  
Gross profit 9,379 21,569 20,985 47,042  
Segment operating expenses 23,859 19,735 44,204 37,161  
Segment operating income (loss) (14,480) 1,834 (23,219) 9,881  
Total depreciation expense 14,342 12,982 27,914 24,311  
Capital expenditures 46,002 37,571 92,305 66,133  
Total Assets 1,123,514 1,045,228 1,123,514 1,045,228  
Diodes [Member]          
Segment Reporting Information [Line Items]          
Net revenues 147,942 146,265 288,905 295,395  
Cost of products sold (excluding depreciation) 106,770 103,823 208,599 209,468  
Depreciation expense in cost of products sold 11,634 11,443 22,746 22,558  
Total cost of products sold 118,404 115,266 231,345 232,026  
Gross profit 29,538 30,999 57,560 63,369  
Segment operating expenses 7,353 6,585 14,178 12,944  
Segment operating income (loss) 22,185 24,414 43,382 50,425  
Total depreciation expense 11,917 11,691 23,400 23,177  
Capital expenditures 3,809 9,188 8,138 17,243  
Total Assets 725,548 736,065 725,548 736,065  
Optoelectronic Components [Member]          
Segment Reporting Information [Line Items]          
Net revenues 54,119 53,010 105,287 102,209  
Cost of products sold (excluding depreciation) 37,596 34,961 74,254 73,364  
Depreciation expense in cost of products sold 3,965 3,844 7,775 7,639  
Total cost of products sold 41,561 38,805 82,029 81,003  
Gross profit 12,558 14,205 23,258 21,206  
Segment operating expenses 5,743 5,512 11,024 11,020  
Segment operating income (loss) 6,815 8,693 12,234 10,186  
Total depreciation expense 4,081 3,935 7,998 7,823  
Capital expenditures 4,043 1,134 4,755 2,425  
Total Assets 360,008 352,159 360,008 352,159  
Resistors [Member]          
Segment Reporting Information [Line Items]          
Net revenues 194,769 179,498 374,269 367,694  
Cost of products sold (excluding depreciation) 139,330 128,157 267,802 259,790  
Depreciation expense in cost of products sold 11,109 10,159 21,783 20,251  
Total cost of products sold 150,439 138,316 289,585 280,041  
Gross profit 44,330 41,182 84,684 87,653  
Segment operating expenses 9,421 8,323 18,624 16,621  
Segment operating income (loss) 34,909 32,859 66,060 71,032  
Total depreciation expense 11,308 10,315 22,172 20,585  
Capital expenditures 5,644 7,286 8,691 18,588  
Total Assets 967,976 1,010,499 967,976 1,010,499  
Inductors [Member]          
Segment Reporting Information [Line Items]          
Net revenues 95,675 94,061 179,796 182,712  
Cost of products sold (excluding depreciation) 64,594 61,519 126,876 119,367  
Depreciation expense in cost of products sold 4,245 4,258 8,487 8,274  
Total cost of products sold 68,839 65,777 135,363 127,641  
Gross profit 26,836 28,284 44,433 55,071  
Segment operating expenses 3,887 3,737 7,582 7,343  
Segment operating income (loss) 22,949 24,547 36,851 47,728  
Total depreciation expense 4,291 4,273 8,574 8,317  
Capital expenditures 1,021 2,330 1,605 3,463  
Total Assets 328,726 342,626 328,726 342,626  
Capacitors [Member]          
Segment Reporting Information [Line Items]          
Net revenues 121,112 113,352 238,483 231,282  
Cost of products sold (excluding depreciation) 90,643 82,978 176,597 164,975  
Depreciation expense in cost of products sold 4,427 3,743 8,569 7,371  
Total cost of products sold 95,070 86,721 185,166 172,346  
Gross profit 26,042 26,631 53,317 58,936  
Segment operating expenses 6,357 5,665 13,058 11,441  
Segment operating income (loss) 19,685 20,966 40,259 47,495  
Total depreciation expense 4,472 3,800 8,656 7,482  
Capital expenditures 3,024 3,637 8,999 5,704  
Total Assets 462,490 435,712 462,490 435,712  
Corporate Other [Member]          
Segment Reporting Information [Line Items]          
Net revenues 0 0 0 0  
Cost of products sold (excluding depreciation) 0 0 0 0  
Depreciation expense in cost of products sold 0 0 0 0  
Total cost of products sold 0 0 0 0  
Gross profit 0 0 0 0  
Segment operating expenses 0 0 0 0  
Segment operating income (loss) 0 0 0 0  
Total depreciation expense 2,268 2,222 4,483 4,446  
Capital expenditures 1,055 1,418 1,674 2,092  
Total Assets 253,393 230,412 253,393 230,412  
Operating Segments [Member]          
Segment Reporting Information [Line Items]          
Operating income (loss) 92,063 113,313 175,567 236,747  
Segment Reconciling Items [Member]          
Segment Reporting Information [Line Items]          
Unallocated Selling, General, and Administrative Expenses (69,945) (75,396) (152,634) (156,159)  
Unallocated Other Income (Expense) $ (9,841) $ (1,646) $ (14,884) $ (55)