Stock-based compensation - Schedule of Assumptions in Black-Scholes Option Pricing Model (Details) - Employee Stock	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term	6 months	6 months	6 months
Expected volatility, minimum	40.90%	43.00%	60.05%
Expected volatility, maximum	40.96%	51.25%	64.90%
Risk-free interest rate, minimum	4.42%	5.14%	1.49%
Risk-free interest rate, maximum	5.43%	5.51%	4.58%
Expected dividend yield	0.00%	0.00%	0.00%