Revenue from Contracts with Customers - Performance Obligations (Details) $ in Millions	Dec. 31, 2020 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Revenue, Performance Obligation [Abstract]
Remaining performance obligation	$ 405.1
Remaining performance obligation, expected timing of satisfaction	12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Revenue, Performance Obligation [Abstract]
Remaining performance obligation	$ 322.5
Remaining performance obligation, expected timing of satisfaction