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Fair Value Measurements - Summary of Changes in Estimated Fair Value of Convertible Preferred Stock Tranche Liability Measured on Recurring Basis (Details) - Convertible Preferred Stock Tranche Liability
12 Months Ended
Dec. 31, 2020
USD ($)
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]  
Beginning balance January 1, 2020 $ 2,495,000
Change in fair value (214,000)
Settlement of convertible preferred stock tranche liability (2,281,000)
Ending balance December 31, 2020 $ 0