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Revenue - Additional Revenue Information (Details) - Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-10-01
$ in Millions
Sep. 30, 2020
USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Deferred revenue, remaining performance obligation, expected timing 12 months
Deferred revenue, remaining performance obligation $ 0.7