Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurement - Summary of Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail)

v3.22.2.2
Fair Value Measurement - Summary of Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Current Liabilities:    
Warrant liability $ 22,582 $ 0
Fair Value, Recurring [Member]    
Long-term Liabilities:    
Warrant liability 111,187  
Fair Value, Recurring [Member] | Public Warrants [Member]    
Long-term Liabilities:    
Warrant liability 19,550  
Fair Value, Recurring [Member] | Private Placement Warrants [Member]    
Long-term Liabilities:    
Warrant liability 11,220  
Fair Value, Recurring [Member] | Contingent Earnoutliability Member [Member]    
Long-term Liabilities:    
Warrant liability 80,417  
Fair Value, Recurring [Member] | E I B warrants [Member]    
Current Liabilities:    
Warrant liability 22,582  
Fair Value, Recurring [Member] | Level 1 [Member]    
Long-term Liabilities:    
Warrant liability 19,550  
Fair Value, Recurring [Member] | Level 1 [Member] | Public Warrants [Member]    
Long-term Liabilities:    
Warrant liability 19,550  
Fair Value, Recurring [Member] | Level 2 [Member]    
Long-term Liabilities:    
Warrant liability 11,220  
Fair Value, Recurring [Member] | Level 2 [Member] | Private Placement Warrants [Member]    
Long-term Liabilities:    
Warrant liability 11,220  
Fair Value, Recurring [Member] | Level 2 [Member] | E I B warrants [Member]    
Current Liabilities:    
Warrant liability 22,582  
Fair Value, Recurring [Member] | Level 3 [Member]    
Long-term Liabilities:    
Warrant liability 80,417  
Fair Value, Recurring [Member] | Level 3 [Member] | Contingent Earnoutliability Member [Member]    
Long-term Liabilities:    
Warrant liability $ 80,417  
Fair Value, Recurring [Member] | Warrant Liabilities [Member]    
Long-term Liabilities:    
Warrant liability   4,007
Fair Value, Recurring [Member] | Warrant Liabilities [Member] | Level 3 [Member]    
Long-term Liabilities:    
Warrant liability   $ 4,007