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Balance Sheet Components - Summary of Available for Sale Securities in Unrealized Loss Position, Fair Value and Gross Unrealized Loss By Length of Time Security in Continual Unrealized Loss Position (Detail) $ in Thousands | Dec. 31, 2023 USD ($)
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Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items] |
Available for sale securities in continual unrealized loss position, less than 12 months, estimated fair value | $ 9,971
Available for sale securities in continual unrealized loss position, less than 12 months, gross unrealized holding losses | (1)
Available for sale securities in continual unrealized loss position, 12 months or more, estimated fair value | 3,495
Available for sale securities in continual unrealized loss position, 12 months or more, gross unrealized holding losses | (5)
Available for sale securities in continual unrealized loss position, estimated fair value | 13,466
Available for sale securities in continual unrealized loss position, gross unrealized holding losses | (6)
Corporate bonds [Member] |
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items] |
Available for sale securities in continual unrealized loss position, less than 12 months, estimated fair value | 0
Available for sale securities in continual unrealized loss position, less than 12 months, gross unrealized holding losses | 0
Available for sale securities in continual unrealized loss position, 12 months or more, estimated fair value | 3,495
Available for sale securities in continual unrealized loss position, 12 months or more, gross unrealized holding losses | (5)
Available for sale securities in continual unrealized loss position, estimated fair value | 3,495
Available for sale securities in continual unrealized loss position, gross unrealized holding losses | (5)
U.S. government bonds [Member] |
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items] |
Available for sale securities in continual unrealized loss position, less than 12 months, estimated fair value | 4,984
Available for sale securities in continual unrealized loss position, less than 12 months, gross unrealized holding losses | 0
Available for sale securities in continual unrealized loss position, 12 months or more, estimated fair value | 0
Available for sale securities in continual unrealized loss position, 12 months or more, gross unrealized holding losses | 0
Available for sale securities in continual unrealized loss position, estimated fair value | 4,984
Available for sale securities in continual unrealized loss position, gross unrealized holding losses | 0
Agency bonds [Member] |
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items] |
Available for sale securities in continual unrealized loss position, less than 12 months, estimated fair value | 4,987
Available for sale securities in continual unrealized loss position, less than 12 months, gross unrealized holding losses | (1)
Available for sale securities in continual unrealized loss position, 12 months or more, estimated fair value | 0
Available for sale securities in continual unrealized loss position, 12 months or more, gross unrealized holding losses | 0
Available for sale securities in continual unrealized loss position, estimated fair value | 4,987
Available for sale securities in continual unrealized loss position, gross unrealized holding losses | $ (1)

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