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Stock-based compensation - Schedule of Black-Scholes Option-Pricing Model (Details) - 2021 Plan - Option	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Share-based compensation
Risk-free interest rate	4.30%	4.10%
Expected term (in years)	6 years 1 month 6 days	6 years
Expected volatility	51.00%	49.50%
Expected dividend yield	0.00%	0.00%

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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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- Definition

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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