Allowance for Credit Losses - Rollforward of Trade Receivable Allowance for Credit Losses (Details) $ in Millions	9 Months Ended
	Sep. 25, 2020 USD ($)
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period(1)	$ 8.9
Deductions to allowance related to write-offs	0.0
Recoveries of amounts previously written off	0.0
Balance, end of period	10.1
Financing Receivable, Allowance for Credit Loss [Line Items]
Provision for uncollectible amounts	1.2
Accounting Standards Update 2016-13 [Member]
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period(1)	$ 1.0