Summary of Significant Accounting Policies - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2021	Dec. 31, 2020
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Deferred revenue contract liabilities	$ 59.6	$ 59.6	$ 73.0
Deferred revenue recognized		$ 35.2
Contracts with customers | Sales Revenue | Customer Concentration Risk
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Consolidated revenues, net (percent)	75.00%	75.00%
Maximum
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Derivative term of contract		1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues to be recognized	$ 37.9	$ 37.9
Revenues to be recognized, period	12 months	12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues to be recognized	$ 21.7	$ 21.7
Revenues to be recognized, period	5 years	5 years