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Stock-based Compensation - Summary of Employee Stock Purchase Plan (Detail)
6 Months Ended
Jun. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Risk free interest rate, minimum 0.06%
Risk free interest rate, maximum 0.15%
Expected volatility rate, minimum 53.77%
Expected volatility rate, maximum 56.90%
Dividend yield 0.00%
Maximum  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Expected terms (in years) 1 year 11 months 12 days
Minimum  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Expected terms (in years) 5 months 8 days