Reorganization and Realignment Costs Operations and Field Realignment (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 04, 2021	Mar. 29, 2020
Restructuring Cost and Reserve
Reorganization and realignment costs	$ 4,934	$ 3,910
Operations and Field Realignment
Restructuring Cost and Reserve
Reorganization and realignment costs	274	$ 0
Restructuring and Related Cost, Incurred Cost	274
Restructuring and Related Cost, Cost Incurred to Date	3,454
Restructuring Charges, Incurred to Date	4,075
Operations and Field Realignment | Minimum
Restructuring Cost and Reserve
Restructuring and Related Cost, Expected Cost	7,000
Restructuring and Related Cost, Expected Cost Remaining	3,000
Operations and Field Realignment | Maximum
Restructuring Cost and Reserve
Restructuring and Related Cost, Expected Cost	9,000
Restructuring and Related Cost, Expected Cost Remaining	5,000
Operations and Field Realignment | Severance and related employee costs
Restructuring Cost and Reserve
Restructuring and Related Cost, Incurred Cost	254
Restructuring and Related Cost, Cost Incurred to Date	3,367
Operations and Field Realignment | Third-party and other costs
Restructuring Cost and Reserve
Restructuring and Related Cost, Incurred Cost	20
Restructuring and Related Cost, Cost Incurred to Date	87
Operations and Field Realignment | Share-based compensation
Restructuring Cost and Reserve
Restructuring and Related Cost, Incurred Cost	0
Restructuring and Related Cost, Cost Incurred to Date	$ 621