Quarterly report pursuant to Section 13 or 15(d)

Related Party Transactions - Summary of Related Party Transactions Outstanding (Detail)

v3.21.2
Related Party Transactions - Summary of Related Party Transactions Outstanding (Detail) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Related Party Transaction [Line Items]    
Due to related parties $ 1,122 $ 1,615
Interfusion B.V. [Member] | Related Party Loans [Member]    
Related Party Transaction [Line Items]    
Due to related parties 0 985
T-Fone B.V. [Member] | Related Party Loans [Member]    
Related Party Transaction [Line Items]    
Due to related parties $ 0 $ 630