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Stockholders' Equity - Fair Value of Options Granted Under Equity Incentive Plan and Shares Subject to Employee Stock Purchase Plan Valuation Assumptions (Detail) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Average risk-free interest rate	5.51%	3.71%	5.51%	3.71%
Expected dividend yield	0.00%	0.00%	0.00%	0.00%
Expected life	6 months	6 months	6 months	6 months
Expected volatility	35.00%	33.00%	35.00%	33.00%
Weighted average fair value	$ 7.9	$ 10.22	$ 7.9	$ 10.22
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Average risk-free interest rate	4.27%		4.27%
Expected dividend yield	0.00%		0.00%
Expected life	4 years 9 months		4 years 9 months
Expected volatility	43.00%		43.00%
Weighted average fair value	$ 14.24		$ 14.24

X

- 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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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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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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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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