Stock-based compensation - Unrecognized Expense (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2024 USD ($)
Time Based Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Expense	$ 10,287
Unrecognized stock compensation on account of unvested options remaining period over which the compensation is to be recognized	1 year 10 months 20 days
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Expense	$ 1,308
Unrecognized stock compensation on account of unvested options remaining period over which the compensation is to be recognized	1 year 11 months 15 days