Reorganization and Realignment Costs System Optimization Costs (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 03, 2021	Sep. 27, 2020	Oct. 03, 2021	Sep. 27, 2020
Restructuring Cost and Reserve
Reorganization and realignment costs	$ 345	$ 3,375	$ 7,381	$ 10,196
System Optimization Initiative
Restructuring Cost and Reserve
Reorganization and realignment costs	295	0	5,870	84
Restructuring and Related Cost, Expected Benefit Remaining	1,000		1,000
Restructuring and Related Cost, Incurred Cost	277	0	3,031	84
Restructuring and Related Cost, Cost Incurred to Date	49,228		49,228
Restructuring Charges, Incurred to Date	82,478		82,478
System Optimization Initiative | Severance and related employee costs
Restructuring Cost and Reserve
Restructuring and Related Cost, Incurred Cost	0	0	661	0
Restructuring and Related Cost, Cost Incurred to Date	18,898		18,898
System Optimization Initiative | Professional fees
Restructuring Cost and Reserve
Restructuring and Related Cost, Incurred Cost	277	0	1,016	80
Restructuring and Related Cost, Cost Incurred to Date	23,123		23,123
System Optimization Initiative | Other
Restructuring Cost and Reserve
Restructuring and Related Cost, Incurred Cost	0	0	1,354	4
Restructuring and Related Cost, Cost Incurred to Date	7,207		7,207
System Optimization Initiative | Other | NPC Transaction Fees
Restructuring Cost and Reserve
Restructuring and Related Cost, Incurred Cost			1,350
System Optimization Initiative | Accelerated depreciation and amortization
Restructuring Cost and Reserve
Restructuring and Related Cost, Incurred Cost	0	0	0	0
Restructuring and Related Cost, Cost Incurred to Date	25,398		25,398
System Optimization Initiative | NPC lease termination costs
Restructuring Cost and Reserve
Restructuring and Related Cost, Incurred Cost	18	0	2,839	0
Restructuring and Related Cost, Cost Incurred to Date	2,839		2,839
System Optimization Initiative | NPC lease termination costs | Write-Off of Lease Assets
Restructuring Cost and Reserve
Restructuring and Related Cost, Incurred Cost			1,359
System Optimization Initiative | NPC lease termination costs | Lease Termination Fees
Restructuring Cost and Reserve
Restructuring and Related Cost, Incurred Cost			1,480
System Optimization Initiative | Share-based compensation
Restructuring Cost and Reserve
Restructuring and Related Cost, Incurred Cost	0	$ 0	0	$ 0
Restructuring and Related Cost, Cost Incurred to Date	$ 5,013		$ 5,013