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Summary of Significant Accounting Policies (Details) - segment
12 Months Ended
Dec. 31, 2019
Jul. 01, 2018
Property, Plant and Equipment [Line Items]    
Number of operating segments 1  
Hermes    
Property, Plant and Equipment [Line Items]    
Fair value of Redeemable noncontrolling interest   33.00%
Software and Software Development Costs    
Property, Plant and Equipment [Line Items]    
Estimated useful life 4 years  
Minimum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 1 year  
Maximum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 15 years