Amount of contribution received by defined benefit plan from employer which increases plan assets.

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Name:	us-gaap_DefinedBenefitPlanContributionsByEmployer
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Pension and Postretirement Benefit Obligations - Narrative (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2024 USD ($)	Sep. 29, 2023 USD ($)	Sep. 27, 2024 USD ($)	Dec. 31, 2023 USD ($)	Sep. 29, 2023 USD ($)	Dec. 31, 2022 benefitPlan
Defined Benefit Plan Disclosure [Line Items]
Pension plan settlement expense	$ 0	$ 77,319	$ 0	$ 112,800	$ 117,096
Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Number of company-sponsored pension plans \| benefitPlan						2
Pension Plans \| Bargaining Plan
Defined Benefit Plan Disclosure [Line Items]
Current employer contributions			$ 2,000