Stock-Based Compensation - Summary of Stock Option Activity (Detail)	3 Months Ended	9 Months Ended
Sep. 30, 2022 shares	Sep. 30, 2023 $ / shares shares
Stock-Based Compensation
Number of Options, Outstanding, Beginning Balance		7,689,449
Number of Options, Granted		1,954,668
Number of Options, Exercised		(93,218)
Number of Options, Forfeited		(177,085)
Number of Options, Expired		(1,332,923)
Number of Options, Outstanding, Ending Balance	7,654,523	8,040,891
Number of Options, Options exercisable		4,583,227
Weighted-Average Exercise Price, Outstanding, Beginning Balance \| $ / shares		$ 14.35
Weighted-Average Exercise Price, Granted \| $ / shares		8.31
Weighted-Average Exercise Price, Exercised \| $ / shares		6.00
Weighted-Average Exercise Price, Forfeited \| $ / shares		11.19
Weighted-Average Exercise Price, Expired \| $ / shares		14.48
Weighted-Average Exercise Price, Outstanding, Ending Balance \| $ / shares		$ 13.03

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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.

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Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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

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

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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 of the plan that expired.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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