Short-term investments - Summary of Short-term Investments (Detail) $ in Thousands	3 Months Ended
Mar. 31, 2023 USD ($)
Debt Securities, Available-for-Sale [Line Items]
Cost	$ 109,723
Gross Unrealized Losses	(783)
Fair Value	108,831
Short-Term Investments [Member]
Debt Securities, Available-for-Sale [Line Items]
Gross Unrealized Gains	60
Gross Unrealized Losses	(952)
Corporate Debt Securities [Member]
Debt Securities, Available-for-Sale [Line Items]
Cost	97,887
Fair Value	96,935
Corporate Debt Securities [Member] \| Short-Term Investments [Member]
Debt Securities, Available-for-Sale [Line Items]
Gross Unrealized Losses	(952)
Asset-Backed Securities [Member]
Debt Securities, Available-for-Sale [Line Items]
Cost	8,885
Fair Value	8,905
Asset-Backed Securities [Member] \| Short-Term Investments [Member]
Debt Securities, Available-for-Sale [Line Items]
Gross Unrealized Gains	20
Government securities [Member]
Debt Securities, Available-for-Sale [Line Items]
Cost	2,951
Fair Value	2,991
Government securities [Member] \| Short-Term Investments [Member]
Debt Securities, Available-for-Sale [Line Items]
Gross Unrealized Gains	$ 40

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
-Paragraph 2
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 45
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+ References

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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