Other Expense, Net - Schedule of Other Nonoperating Income (Expense) (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 01, 2018	Apr. 02, 2017
Other Income and Expenses [Abstract]
Interest income	$ 0.2	$ 0.1
Interest expense	(0.8)	(0.5)
Foreign exchange loss	(1.1)	(1.2)
Other expense, net	$ (1.7)	$ (1.6)