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Stock based Compensation - Weighted-average Assumptions (Details) - Options to purchase common stock - $ / shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected stock price volatility	59.20%	62.10%	65.40%
Risk free interest rate	3.90%	1.70%	0.60%
Expected life of options (years)	5 years 5 months 19 days	5 years 4 months 2 days	5 years 4 months 24 days
Expected annual dividend per share (in dollars per share)	$ 0	$ 0	$ 0

X

- Definition

Represents the estimated dividend per share to be paid (expected dividends) to holders of the underlying shares over the option's term.

+ References

No definition available.

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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 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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