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Revenue - Additional Information (Details) - USD ($)
$ in Millions
Sep. 30, 2020
Dec. 31, 2019
Disaggregation of Revenue [Line Items]    
Revenue expected to be recognised from the remaining performance obligation $ 9.9  
Contract assets after allowance for credit loss 2.7 $ 0.0
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-09-30    
Disaggregation of Revenue [Line Items]    
Revenue recognized remaining performance obligation $ 4.9