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Fair Value Measurements - Fair Value of the Company's Derivative Liability (Details)
9 Months Ended
Sep. 30, 2020
USD ($)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]  
Beginning balance $ 8,819,023
Change in fair value 75,670,977
Derecognition of the derivative liability upon conversion (84,490,000)
Ending balance $ 0