Reorganization and Realignment Costs System Optimization Costs (Details) - USD ($) $ in Thousands	3 Months Ended					12 Months Ended
	Jan. 03, 2021	Sep. 27, 2020	Jun. 28, 2020	Mar. 29, 2020	Dec. 29, 2019	Jan. 03, 2021	Dec. 29, 2019	Dec. 30, 2018
Restructuring Cost and Reserve
Restructuring and Related Cost, Incurred Cost	$ 5,834	$ 3,375	$ 2,911	$ 3,910	$ 12,194	$ 16,030	$ 16,965	$ 9,068
System Optimization
Restructuring Cost and Reserve
Restructuring and Related Cost, Expected Cost Remaining	3,000					3,000
Restructuring and Related Cost, Incurred Cost						4,327	89	283
Restructuring and Related Cost, Incurred Cost						4,327	89	283
Restructuring and Related Cost, Cost Incurred to Date	46,197					46,197
Restructuring Charges, Incurred to Date	76,608					76,608
Severance and related employee costs | System Optimization
Restructuring Cost and Reserve
Restructuring and Related Cost, Incurred Cost						0	0	0
Restructuring and Related Cost, Cost Incurred to Date	18,237					18,237
Professional fees | System Optimization
Restructuring Cost and Reserve
Restructuring and Related Cost, Incurred Cost						4,323	72	264
Restructuring and Related Cost, Cost Incurred to Date	22,107					22,107
Other | System Optimization
Restructuring Cost and Reserve
Restructuring and Related Cost, Incurred Cost						4	17	19
Restructuring and Related Cost, Cost Incurred to Date	5,853					5,853
Accelerated depreciation and amortization | System Optimization
Restructuring Cost and Reserve
Restructuring and Related Cost, Incurred Cost						0	0	0
Restructuring and Related Cost, Cost Incurred to Date	25,398					25,398
Share-based compensation | System Optimization
Restructuring Cost and Reserve
Restructuring and Related Cost, Incurred Cost						0	$ 0	$ 0
Restructuring and Related Cost, Cost Incurred to Date	$ 5,013					$ 5,013