Reorganization and Realignment Costs System Optimization Costs (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2018	Apr. 02, 2017
Restructuring Cost and Reserve
Restructuring Charges	$ 2,626	$ 181
System Optimization
Restructuring Cost and Reserve
Restructuring and Related Cost, Incurred Cost		181
Restructuring and Related Cost, Cost Incurred to Date	41,498
Restructuring Charges	0	181
Restructuring Charges, Incurred to Date	71,909
System Optimization | Severance and related employee costs
Restructuring Cost and Reserve
Restructuring and Related Cost, Incurred Cost		3
Restructuring and Related Cost, Cost Incurred to Date	18,237
System Optimization | Consulting and Professional Fees [Member]
Restructuring Cost and Reserve
Restructuring and Related Cost, Incurred Cost		130
Restructuring and Related Cost, Cost Incurred to Date	17,448
System Optimization | Other
Restructuring Cost and Reserve
Restructuring and Related Cost, Incurred Cost		48
Restructuring and Related Cost, Cost Incurred to Date	5,813
System Optimization | Accelerated Depreciation Expense [Member]
Restructuring Cost and Reserve
Restructuring Charges		0
Restructuring Charges, Incurred to Date	25,398
System Optimization | Share based compensation
Restructuring Cost and Reserve
Restructuring Charges		$ 0
Restructuring Charges, Incurred to Date	$ 5,013