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Equity and Stock-based Compensation - Summary of Common Stock Reserved for Future Issuance (Detail) - shares shares in Thousands	Dec. 31, 2021	Dec. 31, 2020
Class Of Stock [Line Items]
Common stock outstanding	92,881	91,441
Stock options outstanding	8,967	9,290
RSUs outstanding	2,304	1,893
Shares reserved for future stock options and RSUs grant	10,253	7,910
Total shares of common stock reserved	119,176	114,604
ESPP [Member]
Class Of Stock [Line Items]
Shares reserved for future ESPP offering	4,771	4,070

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Common stock shares reserved.

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Aggregate number of common shares reserved for future issuance.

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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

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