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Fair Value Measurement - Summary of Quantitative Information Regarding Fair Value Measurements (Detail)

v3.21.2
Fair Value Measurement - Summary of Quantitative Information Regarding Fair Value Measurements (Detail) - Fair Value, Inputs, Level 3 [Member] - Cerberus Telecom Acquisition Corp [Member] - $ / shares
Nov. 10, 2020
Oct. 26, 2020
Measurement Input, Exercise Price [Member] | IPO [Member]    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Strike price   $ 11.50
Measurement Input, Exercise Price [Member] | Over-Allotment Option [Member]    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Strike price $ 11.50  
Measurement Input, Expected Term [Member] | IPO [Member]    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Term (in years)   5 years
Measurement Input, Expected Term [Member] | Over-Allotment Option [Member]    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Term (in years) 5 years  
Measurement Input, Price Volatility [Member] | IPO [Member]    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Volatility   16.50%
Measurement Input, Price Volatility [Member] | Over-Allotment Option [Member]    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Volatility 18.20%  
Measurement Input, Risk Free Interest Rate [Member] | IPO [Member]    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Risk-free rate   0.41%
Measurement Input, Risk Free Interest Rate [Member] | Over-Allotment Option [Member]    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Risk-free rate 0.52%  
Measurement Input, Expected Dividend Rate [Member] | IPO [Member]    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Dividend yield   0.00%
Measurement Input, Expected Dividend Rate [Member] | Over-Allotment Option [Member]    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Dividend yield 0.00%  
Measurement Input, Expected Fair Value of Warrants [Member] | IPO [Member]    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair value of warrants   $ 0.92
Measurement Input, Expected Fair Value of Warrants [Member] | Over-Allotment Option [Member]    
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Fair value of warrants $ 1.09