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Fair Value Measurements - Schedule of Changes in Level 3 Liabilities Measured at Fair Value (Details) - Warrants - Private Warrants
$ in Thousands
9 Months Ended
Sep. 30, 2021
USD ($)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]  
Balance at beginning of period $ 0
Private warrants transferred from Level 2 52,832
Measurement adjustments (25,079)
Balance at end of period $ 27,753