Restructuring Costs (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 29, 2019	Sep. 29, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 30, 2018	Sep. 30, 2018	Jul. 01, 2018	Apr. 01, 2018	Dec. 29, 2019	Dec. 30, 2018	Dec. 31, 2017
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance				$ 654				$ 284	$ 654	$ 284
Restructuring Charges	$ 2,681	$ 1,994	$ 1,361	3,740	$ 1,624	$ 0	$ 0	0	9,776	1,624	$ 850
Payments for Restructuring									(8,895)	(1,254)
Restructuring reserve, ending balance	1,535				654				1,535	654	284
Severance
Restructuring Reserve [Roll Forward]
Restructuring Charges									7,095	859
Closure Costs
Restructuring Reserve [Roll Forward]
Restructuring Charges									2,681	765
2019 Plan
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance				0					0
Restructuring Charges									7,380
Payments for Restructuring									(5,845)
Restructuring reserve, ending balance	1,535				0				1,535	0
2019 Plan | Severance
Restructuring Reserve [Roll Forward]
Restructuring Charges									5,100
2019 Plan | Closure Costs
Restructuring Reserve [Roll Forward]
Restructuring Charges									2,280
2018 Plan
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance				596				0	596	0
Restructuring Charges									2,396	1,624
Payments for Restructuring									(2,992)	(1,028)
Restructuring reserve, ending balance	0				596				0	596	0
2018 Plan | Severance
Restructuring Reserve [Roll Forward]
Restructuring Charges									1,995	859
2018 Plan | Closure Costs
Restructuring Reserve [Roll Forward]
Restructuring Charges									401	765
Other
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance				$ 58				$ 284	58	284
Payments for Restructuring									(58)	(226)
Restructuring reserve, ending balance	$ 0				$ 58				0	58	$ 284
Other | Severance
Restructuring Reserve [Roll Forward]
Restructuring Charges									0	0
Other | Closure Costs
Restructuring Reserve [Roll Forward]
Restructuring Charges									$ 0	$ 0