Revenue - Contracts and Liabilities, Narrative (Details) - USD ($) $ in Millions		12 Months Ended
	Jan. 01, 2020	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Cash payments received in advance		$ 100.3
Revenue recognized during the period	$ 26.9	$ 83.9
Minimum
Disaggregation of Revenue [Line Items]
Contract with customer liability recognized		1 year
Maximum
Disaggregation of Revenue [Line Items]
Contract with customer liability recognized		2 years