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Equity Method Investment (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2020
Sep. 30, 2019
Jan. 02, 2020
Schedule of Equity Method Investments [Line Items]        
Losses in equity method investments $ 1,600,000 $ 4,313,000 $ 0  
Walmart Program Agreement        
Schedule of Equity Method Investments [Line Items]        
Capital contributions, authorized amount       $ 35,000,000.0
Walmart Program Agreement | TailFin Labs        
Schedule of Equity Method Investments [Line Items]        
Equity interest       20.00%