Asset Impairment and Other Charges, Net - Exit Activity and Other Reserves (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 29, 2019	Mar. 30, 2018
Restructuring Reserve [Roll Forward]
Exit activity and other reserve balance at December 28, 2018	$ 0.5
Impact to earnings	0.2	$ 1.6
Cash paid	(0.2)
Foreign exchange impact	0.0
Exit activity and other reserve balance at March 29, 2019	0.5
Contract termination and other exit activity charges
Restructuring Reserve [Roll Forward]
Exit activity and other reserve balance at December 28, 2018	0.5
Impact to earnings	0.2
Cash paid	(0.2)
Foreign exchange impact	0.0
Exit activity and other reserve balance at March 29, 2019	0.5
Philippines | Contract termination and other exit activity charges
Restructuring Reserve [Roll Forward]
Cash paid	$ (0.2)