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Equity Incentive Plans - Summary of Stock-based Compensation Expense (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Equity Incentive Plan [Line Items]
Cumulative stock-based compensation	$ 5,080	$ 6,388	$ 11,553	$ 24,411
Cost of Revenue
Equity Incentive Plan [Line Items]
Cumulative stock-based compensation	135	296	438	1,092
Research and Development
Equity Incentive Plan [Line Items]
Cumulative stock-based compensation	1,117	1,400	2,426	6,025
Sales and Marketing
Equity Incentive Plan [Line Items]
Cumulative stock-based compensation	1,174	945	2,586	4,898
General and Administrative
Equity Incentive Plan [Line Items]
Cumulative stock-based compensation	$ 2,654	$ 3,747	$ 6,103	$ 12,396

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- Definition

Equity Incentive Plan [Line Items]

+ References

No definition available.

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section S45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479983/718-10-S45-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.F)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479830/718-10-S99-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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