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Summary of Significant Accounting Policies and Other Information - Narrative (Details) customer in Thousands, associate in Thousands, € in Millions | 3 Months Ended | 12 Months Ended |  |  |
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Dec. 28, 2024 USD ($) country associate | Dec. 28, 2024 USD ($) country associate reporting_unit customer | Dec. 30, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 28, 2024 EUR (€) country associate | Dec. 30, 2023 EUR (€) | Oct. 02, 2022
Summary of Significant Accounting Policies and Other Information |  |  |  |  |  |  |
Countries where product is used (country) | country | 20 | 20 |  |  | 20 |  |
Global associates (associate) | associate | 16 | 16 |  |  | 16 |  |
Number of customers (over) | customer |  | 100 |  |  |  |  |
Cost of sales |  | $ 1,403,226,000 | $ 1,462,416,000 | $ 1,506,984,000 |  |  |
Inventory | $ 416,273,000 | 416,273,000 | 474,607,000 |  |  |  |
Equity investment | 10,182,000 | 10,182,000 | 10,832,000 |  |  |  |
Gain (loss) from equity method investments |  | 600,000 | (500,000) |  |  |  |
Equity method investments | 13,100,000 | 13,100,000 | 14,000,000.0 |  |  |  |
Goodwill impairment |  | 44,763,000 | 0 | 0 |  |  |
Goodwill | 1,228,502,000 | $ 1,228,502,000 | 1,309,998,000 | 1,186,922,000 |  |  |
Number of reporting units | reporting_unit |  | 5 |  |  |  |  |
Impairment of intangible assets | 47,800,000 |  |  |  |  |  |
Allowance for credit losses | 1,600,000 | $ 1,600,000 | 2,200,000 |  |  |  |
Advertising expense |  | 5,000,000.0 | 4,000,000.0 | 3,800,000 |  |  |
Foreign exchange (gain) loss |  | (9,230,000) | 12,299,000 | 24,359,000 |  |  |
Loss contingency accrual | 2,300,000 | 2,300,000 | 2,700,000 |  | € 2.2 | € 2.5 |
Toll charge, noncurrent |  | 8,200,000 |  |  |  |  |
Interest inc |  | $ 28,000,000 | 18,900,000 | 5,000,000 |  |  |
Impairment, Intangible Asset, Statement of Income or Comprehensive Income [Extensible Enumeration] |  | Restructuring, impairment, and other charges |  |  |  |  |
Adjustments |  |  |  |  |  |  |
Summary of Significant Accounting Policies and Other Information |  |  |  |  |  |  |
Cost of sales |  | $ 12,300,000 |  |  |  |  |
Inventory | (12,300,000) | (12,300,000) |  |  |  |  |
Transportation Segment |  |  |  |  |  |  |
Summary of Significant Accounting Policies and Other Information |  |  |  |  |  |  |
Goodwill impairment |  | 8,616,000 |  |  |  |  |
Goodwill | 191,641,000 | 191,641,000 | 203,111,000 | 201,392,000 |  |  |
Industrial |  |  |  |  |  |  |
Summary of Significant Accounting Policies and Other Information |  |  |  |  |  |  |
Goodwill impairment |  | 36,147,000 |  |  |  |  |
Goodwill | 129,990,000 | 129,990,000 | 170,382,000 | 76,363,000 |  |  |
90 days past due |  |  |  |  |  |  |
Summary of Significant Accounting Policies and Other Information |  |  |  |  |  |  |
Allowance for credit losses | 3,800,000 | 3,800,000 | 5,400,000 |  |  |  |
Shipping and handling cost and expenses | Selling, general, and administrative expenses |  |  |  |  |  |  |
Summary of Significant Accounting Policies and Other Information |  |  |  |  |  |  |
Cost of sales |  | $ 15,300,000 | 15,400,000 | $ 13,900,000 |  |  |
Customer relationships |  |  |  |  |  |  |
Summary of Significant Accounting Policies and Other Information |  |  |  |  |  |  |
Impairment of intangible assets | 47,600,000 |  |  |  |  |  |
Customer relationships | Industrial |  |  |  |  |  |  |
Summary of Significant Accounting Policies and Other Information |  |  |  |  |  |  |
Impairment of intangible assets | $ 200,000 |  |  |  |  |  |
Land use rights |  |  |  |  |  |  |
Summary of Significant Accounting Policies and Other Information |  |  |  |  |  |  |
Finite lived intangible asset weighted average useful life (years) | 50 years | 50 years |  |  | 50 years |  |
Industrial Controls |  |  |  |  |  |  |
Summary of Significant Accounting Policies and Other Information |  |  |  |  |  |  |
Goodwill impairment |  | $ 36,147,000 |  |  |  |  |
Goodwill | $ 115,200,000 | 115,200,000 |  |  |  |  |
Impairment of intangible assets |  | 47,579,000 |  |  |  |  |
Industrial Controls | Patents, licenses, and software |  |  |  |  |  |  |
Summary of Significant Accounting Policies and Other Information |  |  |  |  |  |  |
Impairment of intangible assets |  | 6,938,000 |  |  |  |  |
Automotive Sensors |  |  |  |  |  |  |
Summary of Significant Accounting Policies and Other Information |  |  |  |  |  |  |
Goodwill impairment |  | 8,616,000 |  |  |  |  |
Goodwill | $ 0 | $ 0 |  |  |  |  |
Electronics – Passive Products and Sensors |  |  |  |  |  |  |
Summary of Significant Accounting Policies and Other Information |  |  |  |  |  |  |
Percentage of fair value in excess of carrying value (percent) |  |  |  |  |  |  | 108.00%
Electronics – Semiconductor |  |  |  |  |  |  |
Summary of Significant Accounting Policies and Other Information |  |  |  |  |  |  |
Percentage of fair value in excess of carrying value (percent) |  |  |  |  |  |  | 82.00%
Passenger Car Products |  |  |  |  |  |  |
Summary of Significant Accounting Policies and Other Information |  |  |  |  |  |  |
Percentage of fair value in excess of carrying value (percent) |  |  |  |  |  |  | 96.00%
Commercial Vehicle Products |  |  |  |  |  |  |
Summary of Significant Accounting Policies and Other Information |  |  |  |  |  |  |
Percentage of fair value in excess of carrying value (percent) |  |  |  |  |  |  | 44.00%
Industrial Circuit Protection |  |  |  |  |  |  |
Summary of Significant Accounting Policies and Other Information |  |  |  |  |  |  |
Percentage of fair value in excess of carrying value (percent) |  |  |  |  |  |  | 409.00%
Minimum | Customer relationships |  |  |  |  |  |  |
Summary of Significant Accounting Policies and Other Information |  |  |  |  |  |  |
Finite lived intangible asset weighted average useful life (years) | 3 years | 3 years |  |  | 3 years |  |
Minimum | Trademarks and tradenames |  |  |  |  |  |  |
Summary of Significant Accounting Policies and Other Information |  |  |  |  |  |  |
Finite lived intangible asset weighted average useful life (years) | 3 years | 3 years |  |  | 3 years |  |
Minimum | Patents, licenses, and software |  |  |  |  |  |  |
Summary of Significant Accounting Policies and Other Information |  |  |  |  |  |  |
Finite lived intangible asset weighted average useful life (years) | 4 years | 4 years |  |  | 4 years |  |
Minimum | Distribution network |  |  |  |  |  |  |
Summary of Significant Accounting Policies and Other Information |  |  |  |  |  |  |
Finite lived intangible asset weighted average useful life (years) | 4 years | 4 years |  |  | 4 years |  |
Maximum | Customer relationships |  |  |  |  |  |  |
Summary of Significant Accounting Policies and Other Information |  |  |  |  |  |  |
Finite lived intangible asset weighted average useful life (years) | 20 years | 20 years |  |  | 20 years |  |
Maximum | Trademarks and tradenames |  |  |  |  |  |  |
Summary of Significant Accounting Policies and Other Information |  |  |  |  |  |  |
Finite lived intangible asset weighted average useful life (years) | 20 years | 20 years |  |  | 20 years |  |
Maximum | Patents, licenses, and software |  |  |  |  |  |  |
Summary of Significant Accounting Policies and Other Information |  |  |  |  |  |  |
Finite lived intangible asset weighted average useful life (years) | 17 years | 17 years |  |  | 17 years |  |
Maximum | Distribution network |  |  |  |  |  |  |
Summary of Significant Accounting Policies and Other Information |  |  |  |  |  |  |
Finite lived intangible asset weighted average useful life (years) | 10 years | 10 years |  |  | 10 years |  |
Buildings |  |  |  |  |  |  |
Summary of Significant Accounting Policies and Other Information |  |  |  |  |  |  |
Useful life (in years) | 35 years | 35 years |  |  | 35 years |  |
Equipment | Minimum |  |  |  |  |  |  |
Summary of Significant Accounting Policies and Other Information |  |  |  |  |  |  |
Useful life (in years) | 3 years | 3 years |  |  | 3 years |  |
Equipment | Maximum |  |  |  |  |  |  |
Summary of Significant Accounting Policies and Other Information |  |  |  |  |  |  |
Useful life (in years) | 20 years | 20 years |  |  | 20 years |  |
Furniture and Fixtures |  |  |  |  |  |  |
Summary of Significant Accounting Policies and Other Information |  |  |  |  |  |  |
Useful life (in years) | 7 years | 7 years |  |  | 7 years |  |
Tooling |  |  |  |  |  |  |
Summary of Significant Accounting Policies and Other Information |  |  |  |  |  |  |
Useful life (in years) | 5 years | 5 years |  |  | 5 years |  |
Computer Equipment |  |  |  |  |  |  |
Summary of Significant Accounting Policies and Other Information |  |  |  |  |  |  |
Useful life (in years) | 3 years | 3 years |  |  | 3 years |  |
Other long-term assets |  |  |  |  |  |  |
Summary of Significant Accounting Policies and Other Information |  |  |  |  |  |  |
Marketable securities | $ 23,300,000 | $ 23,300,000 | 20,100,000 |  |  |  |
Polytronics |  |  |  |  |  |  |
Summary of Significant Accounting Policies and Other Information |  |  |  |  |  |  |
Ownership percentage | 6.70% | 6.70% |  |  | 6.70% |  |
Equity investment | $ 10,200,000 | $ 10,200,000 | $ 10,800,000 |  | € 9.8 | € 9.7 |
Powersem | Related Party |  |  |  |  |  |  |
Summary of Significant Accounting Policies and Other Information |  |  |  |  |  |  |
Ownership percentage | 45.00% | 45.00% |  |  | 45.00% |  |
EB Tech | Related Party |  |  |  |  |  |  |
Summary of Significant Accounting Policies and Other Information |  |  |  |  |  |  |
Ownership percentage | 15.00% | 15.00% |  |  | 15.00% |  |
ATEC | Related Party |  |  |  |  |  |  |
Summary of Significant Accounting Policies and Other Information |  |  |  |  |  |  |
Ownership percentage | 24.00% | 24.00% |  |  | 24.00% |  |

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