Stock-based Compensation - Valuation assumptions (Details) - $ / shares	3 Months Ended	9 Months Ended
Sep. 30, 2025	Sep. 30, 2025	Sep. 30, 2024
Stock-based Compensation
Per share fair value of common stock	$ 36.32	$ 17.14	$ 4.62
Expected volatility	67.72%		73.79%
Expected volatility - Minimum		67.72%
Expected volatility - Maximum		68.86%
Expected dividends	0.00%	0.00%	0.00%
Expected term (in years)	6 years 3 months		5 years 11 months 8 days
Risk-free rate	3.80%		3.90%
Risk-free rate - Minimum		3.80%
Risk-free rate - Maximum		4.00%
Minimum
Stock-based Compensation
Expected term (in years)		5 years 6 months
Maximum
Stock-based Compensation
Expected term (in years)		6 years 3 months

Amount of the weighted average stock price.

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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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- Definition

The estimated measure of the maximum 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 estimated measure of the minimum 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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- Definition

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

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

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- Definition

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

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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