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Revenues - Additional Information (Details 1) - Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2020-07-01
$ in Millions
Jun. 30, 2020
USD ($)
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]  
Remaining performance obligation, amount $ 39.3
Remaining performance obligation, expected time of satisfaction 9 months
Maximum  
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]  
Revenue, remaining performance obligation, optional exemption, remaining duration 1 year