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Share-based compensation - Summary of Classification of Stock-based Compensation in Consolidated Statements (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Expense From Share Based Payment Transactions Alternative [Line Items]      
Expense from share-based payment transactions with employees $ (12,753) $ (19,585) $ (3,295)
Subscription Cost [Member]      
Expense From Share Based Payment Transactions Alternative [Line Items]      
Expense from share-based payment transactions with employees (502) (696) (84)
Services Cost [Member]      
Expense From Share Based Payment Transactions Alternative [Line Items]      
Expense from share-based payment transactions with employees (156) (376) (78)
Sales And Marketing [Member]      
Expense From Share Based Payment Transactions Alternative [Line Items]      
Expense from share-based payment transactions with employees (2,885) (5,530) (991)
Research And Development [Member]      
Expense From Share Based Payment Transactions Alternative [Line Items]      
Expense from share-based payment transactions with employees (4,844) (5,896) (1,131)
General And Administrative [Member]      
Expense From Share Based Payment Transactions Alternative [Line Items]      
Expense from share-based payment transactions with employees $ (4,366) $ (7,087) $ (1,011)