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Fair Value Measurements - Schedule of Change in the Fair Value of the Warrant Liability (Details)
$ in Thousands
9 Months Ended
Sep. 30, 2021
USD ($)
Fair Value Disclosures [Abstract]  
Beginning balance $ 1,169
Change in fair value of warrant liability 3,317
Conversion of preferred stock warrants to common stock warrants upon the closing of the IPO (4,486)
Ending balance $ 0