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Stockholders’ Equity (Deficit) and Equity Incentive Plan - Schedule of Black-Scholes Assumptions Used to Value the ESPP (Detail) - Employee Stock	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Class Of Stock [Line Items]
Expected term	6 months	7 months 17 days
Expected volatility	49.31%	61.00%
Risk-free interest rate	0.07%	0.06%
Dividend yield	0.00%	0.00%

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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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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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-Publisher FASB
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-SubTopic 10
-Section 50
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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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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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