Revenue From Contracts With Customers - Performance Obligations (Details) $ in Millions	Dec. 31, 2020 USD ($)
Revenue from Contract with Customer [Abstract]
Remaining performance obligation, amount	$ 131.8
Disaggregation of Revenue [Line Items]
Remaining performance obligation, amount	131.8
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Revenue from Contract with Customer [Abstract]
Remaining performance obligation, amount	32.8
Disaggregation of Revenue [Line Items]
Remaining performance obligation, amount	$ 32.8
Performance obligations expected to be satisfied in	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Revenue from Contract with Customer [Abstract]
Remaining performance obligation, amount	$ 36.6
Disaggregation of Revenue [Line Items]
Remaining performance obligation, amount	$ 36.6
Performance obligations expected to be satisfied in	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Revenue from Contract with Customer [Abstract]
Remaining performance obligation, amount	$ 23.2
Disaggregation of Revenue [Line Items]
Remaining performance obligation, amount	$ 23.2
Performance obligations expected to be satisfied in