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Summary of Significant Accounting Policies - Property and Equipment (Details)
12 Months Ended
Dec. 31, 2020
Vehicles  
Property, Plant and Equipment [Line Items]  
Estimated useful lives 7 years
Computers and equipment  
Property, Plant and Equipment [Line Items]  
Estimated useful lives 5 years
Furniture and fixtures  
Property, Plant and Equipment [Line Items]  
Estimated useful lives 7 years