v3.21.2
Fair Value Measurements - Summary of fair value measurements inputs (Detail) - Fair Value, Inputs, Level 3 [Member]
Sep. 30, 2021
yr
$ / shares
Dec. 31, 2020
$ / shares
yr
Measurement Input, Exercise Price [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value Measurements 11.50 11.50
Measurement Input, Share price [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value Measurements 9.82 10.01
Measurement Input, Expected Term [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value Measurements | yr 5.00 5.00
Measurement Input, Price Volatility [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value Measurements 16.10 17.00
Measurement Input, Risk Free Interest Rate [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value Measurements 1.17 0.56
Measurement Input, Expected Dividend Rate [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value Measurements 0.00 0.00