Accounts Receivable and Allowance for Doubtful Accounts - Schedule of Allowance for Doubtful Accounts (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 1.1	$ 0.4
Provision (recoveries)	3.1	0.7
Write-offs	(1.4)	0.0
Ending balance	$ 2.8	$ 1.1