Revenue Recognition (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Remaining performance obligation	$ 2,230.0
Threshold period past due	60 days
Allowance for doubtful accounts	$ 1.1		$ 1.2
Amortization of deferred contract costs	31.3	$ 25.1
Service [Member]
Disaggregation of Revenue [Line Items]
Deferred revenue recognized in period	$ 348.9	$ 288.6