Balance Sheet Information and Other - Lease Expense (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 03, 2020	Mar. 29, 2019	Dec. 31, 2019
Balance Sheet Related Disclosures [Abstract]
Operating lease	$ 9.1	$ 8.3
Variable lease	1.1	1.2
Short-term lease	1.1	0.7
Total lease expense	11.3	$ 10.2
Accrued expenses and other current liabilities	27.6		$ 26.1
Other long-term liabilities	87.8		87.9
Accrued liabilities and other liabilities	$ 115.4		$ 114.0