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Deferred Revenue and Performance Obligations - Performance Obligation (Details)
$ in Millions
Dec. 31, 2019
USD ($)
Revenue from Contract with Customer [Abstract]  
Revenue, remaining performance obligation $ 489.2
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Remaining performance obligation, percentage 94.00%
Revenue, remaining performance obligation, expected timing of satisfaction, period 24 months