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Warrants - Summary of Fair Value of Warrant Units Estimated at Option Pricing Model (Detail)
Dec. 31, 2020
yr
Expected term  
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]  
Fair value of the warrant 3
Volatility  
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]  
Fair value of the warrant 0.520
Discount for lack of marketability  
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]  
Fair value of the warrant 0.450
Risk free rate  
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]  
Fair value of the warrant 0.002