Summary of Significant Accounting Policies and Other Information - Narrative (Details) customer in Thousands, associate in Thousands, € in Millions	3 Months Ended	12 Months Ended
	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%