Employee Benefit Plans (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 02, 2021 USD ($) plan	Sep. 26, 2020 USD ($)	Oct. 02, 2021 USD ($) plan	Sep. 26, 2020 USD ($)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Amount Company expects to contribute to its pension plans	$ 3,700		$ 3,700
Payment for pension benefits			$ 2,800	$ 10,300
Defined Benefit Plan, Additional Information [Abstract]
Number Of Multiemployer Plans, Withdrawal Obligation Could Be Material | plan	2		2
Number Of Multiemployer Plans Withdrawal Obligation Could Be Material Certified Red Zone | plan	1		1
Number of Multiemployer Plans, Certified Red Zone | plan	5		5
Number of Multiemployer Plans, Certified Yellow Zone | plan	2		2
Number Of Multiemployer Plans, Withdrawal Obligation | plan	4		4
Additional Liability, Defined Benefit Pension Plan	$ 1,300		$ 1,300
Accrued liability representing the present value of scheduled withdrawal liability payments for under-funded multi-employer plan	3,900		$ 3,900
Maximum [Member]
Defined Benefit Plan, Additional Information [Abstract]
Multiemployer Plan, Contributions To Individual Plan, Percent			5.00%
Pension Plan, Defined Benefit [Member]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Service cost	778	$ 764	$ 2,359	2,268
Interest cost	1,203	1,425	3,616	4,283
Expected return on plan assets	(2,320)	(2,042)	(6,969)	(6,113)
Amortization of prior service cost	5	9	16	25
Amortization of actuarial loss	1,052	854	3,157	2,562
Net pension cost	$ 718	$ 1,010	$ 2,179	$ 3,025