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Revenue - Remaining Performance Obligation (Details)
$ in Millions
Sep. 30, 2020
USD ($)
Revenue from Contract with Customer [Abstract]  
Remaining performance obligation, amount $ 402.7
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-10-01  
Revenue from Contract with Customer [Abstract]  
Remaining performance obligation, amount $ 365.1
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Remaining performance obligation, period 24 months