Stock-Based Compensation and Employee Stock Purchase Program - Summary of Activity Under Stock Incentive Plans (Detail) $ / shares in Units, $ in Thousands	6 Months Ended
Jun. 30, 2026 USD ($) $ / shares shares
Share-Based Payment Arrangement [Abstract]
Shares Subject to Outstanding, Beginning Balance \| shares	179,963
Shares Subject to Outstanding, Options Forfeited \| shares	(3,415)
Shares Subject to Outstanding, Options expired \| shares	(2,647)
Shares Subject to Outstanding, Ending Balance \| shares	173,901
Shares Subject to Outstanding, Vested and expected to vest \| shares	167,580
Shares Subject to Outstanding, Exercisable \| shares	135,608
Weighted-Average Exercise Price Per Share, Outstanding Beginning Balance \| $ / shares	$ 14.65
Weighted-Average Exercise Price Per Share, Options forfeited \| $ / shares	2.95
Weighted-Average Exercise Price Per Share, Options expired \| $ / shares	16.35
Weighted-Average Exercise Price Per Share,Vested and expected to vest \| $ / shares	15.26
Weighted Average Exercise Price Per Share, Exercisable \| $ / shares	18.12
Weighted Average Exercise Price Per Share, Outstanding Ending Balance \| $ / shares	$ 14.82
Aggregate Intrinsic Value, Beginning Balance \| $	$ 0
Aggregate Intrinsic Value, Options Forfeited \| $	0
Aggregate Intrinsic Value, Options expired \| $	0
Aggregate Intrinsic Value, Ending Balance \| $	0
Aggregate Intrinsic Value, Vested and expected to vest \| $	0
Aggregate Intrinsic Value, Exercisable \| $	$ 0

Share based compensation arrangement by share based payment award expired outstanding intrinsic value.

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Share-based compensation arrangement by share-based payment award, forfeiture, intrinsic value.

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No definition available.

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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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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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- Definition

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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- 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.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S45
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480100/505-10-S45-3

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Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(28))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S50
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480657/210-10-S50-11

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
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-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(03)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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- Definition

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

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Topic 718
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- Definition

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

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)
-Publisher FASB
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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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- Definition

Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
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-Section 50
-Paragraph 2
-Subparagraph (e)(1)
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-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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- Definition

Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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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 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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