v3.22.0.1
Segment and Geographic Information - Summary of Property and Equipment, Net by Geography (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Segment Reporting, Other Significant Reconciling Item [Line Items]    
Property and equipment, net $ 31,304 $ 29,541
Geographic Concentration Risk [Member]    
Segment Reporting, Other Significant Reconciling Item [Line Items]    
Property and equipment, net $ 31,304 $ 29,541
Geographic Concentration Risk [Member] | Property, Plant and Equipment [Member]    
Segment Reporting, Other Significant Reconciling Item [Line Items]    
Concentration risk, percentage 100.00% 100.00%
Geographic Concentration Risk [Member] | United States [Member]    
Segment Reporting, Other Significant Reconciling Item [Line Items]    
Property and equipment, net $ 18,728 $ 13,268
Geographic Concentration Risk [Member] | United States [Member] | Property, Plant and Equipment [Member]    
Segment Reporting, Other Significant Reconciling Item [Line Items]    
Concentration risk, percentage 60.00% 45.00%
Geographic Concentration Risk [Member] | United Kingdom [Member]    
Segment Reporting, Other Significant Reconciling Item [Line Items]    
Property and equipment, net $ 8,375 $ 13,325
Geographic Concentration Risk [Member] | United Kingdom [Member] | Property, Plant and Equipment [Member]    
Segment Reporting, Other Significant Reconciling Item [Line Items]    
Concentration risk, percentage 27.00% 45.00%
Geographic Concentration Risk [Member] | Rest of world [Member]    
Segment Reporting, Other Significant Reconciling Item [Line Items]    
Property and equipment, net $ 4,201 $ 2,948
Geographic Concentration Risk [Member] | Rest of world [Member] | Property, Plant and Equipment [Member]    
Segment Reporting, Other Significant Reconciling Item [Line Items]    
Concentration risk, percentage 13.00% 10.00%