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Fair Value Measurements - Schedule of Aggregate Fair Value of Principal Amount of Convertible Debt (Detail) - USD ($)
$ in Thousands
Sep. 30, 2022
Dec. 31, 2021
Fair Value Disclosures [Abstract]    
Convertible Debt, Principal Amount $ 15,000 $ 15,000
Convertible Debt, Carrying Value 15,763 14,920
Convertible Debt, Fair Value $ 16,548 $ 15,204