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Revenue - Performance Obligations (Details)
$ in Millions
Sep. 30, 2021
USD ($)
Revenue from Contract with Customer [Abstract]  
Revenue, Remaining Performance Obligation, Amount $ 414.9
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-10-01  
Revenue from Contract with Customer [Abstract]  
Revenue, Remaining Performance Obligation, Amount $ 291.0
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue, remaining performance obligation, expected timing of satisfaction, period 1 year