XML 70 R52.htm IDEA: XBRL DOCUMENT v3.22.2
Accounts receivable - Additional Information (Detail) - USD ($)
$ in Thousands
Jun. 30, 2022
Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Allowance for doubtful accounts receivable $ 24,521 $ 19,327
Unbilled revenue    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Accounts receivable balances $ 85,928 $ 102,693