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Fair Value Measurements - Additional Information (Detail) - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Fair Value Measurements [Line Items] |  |  |  |
Realized gains or losses recognized on the sale or maturity of available-for-sale securities | $ 0 | $ 0 | $ 0 | $ 0

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- Definition Fair value measurements. + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- Definition Amount of realized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-9 + Details
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