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Equity Plans -Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Grant Date Intrinsic Value (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Outstanding	11,468,275
Granted	0
Exercised	(1,123,539)
Forfeited and expired	(229,887)
Outstanding	10,114,849		11,468,275
Exercisable	5,645,220
Outstanding	$ 0.36
Exercised	0.27
Forfeited and expired	0.27
Outstanding	0.36		$ 0.36
Exercisable	$ 0.41
Outstanding	7 years 10 months 24 days		8 years 1 month 6 days
Outstanding	7 years 10 months 24 days		8 years 1 month 6 days
Exercisable	7 years 9 months 18 days
Outstanding	$ 46,839
Exercised	4,668	$ 700
Outstanding	60,885		$ 46,839
Exercisable	$ 33,229

X

- Definition

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

+ References

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- Definition

The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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- Definition

The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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- Definition

Gross number of share options (or share units) granted during the period.

+ References

No definition available.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of share options (or share units) exercised during the current period.

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