Cash, Cash Equivalents and Investments - Components of Cash, Cash Equivalents and Investments (Detail) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]
Cash	$ 183,242	$ 180,959
Money market instruments	19,413	415
Cash and cash equivalents	202,655	181,374
Debt securities, available-for-sale, current	129,392	218,759
Non-current investments	244,230	454,117
Total	576,277	854,250
Treasury Bills [Member]
Debt Securities, Available-for-sale [Line Items]
Debt securities, available-for-sale, current	0	11,332
Long-term investments	43,523	44,214
Asset-Backed Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Debt securities, available-for-sale, current	3,551	26,890
Long-term investments	15,763	33,539
Corporate Bonds [Member]
Debt Securities, Available-for-sale [Line Items]
Debt securities, available-for-sale, current	124,851	164,055
Long-term investments	183,965	374,440
Sovereign Bonds [Member]
Debt Securities, Available-for-sale [Line Items]
Debt securities, available-for-sale, current	990	0
Long-term investments	979	1,924
Municipal Bonds [Member]
Debt Securities, Available-for-sale [Line Items]
Debt securities, available-for-sale, current	0	624
Agency Bonds [Member]
Debt Securities, Available-for-sale [Line Items]
Debt securities, available-for-sale, current	$ 0	$ 15,858

Cash, cash equivalents, short term and long term investments.

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as current.

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as noncurrent.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle).

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Investment in short-term money-market instruments (such as commercial paper, banker's acceptances, repurchase agreements, government securities, certificates of deposit, and so forth) which are highly liquid (that is, readily convertible to known amounts of cash) and so near their maturity that they present an insignificant risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify as cash equivalents by definition. Original maturity means an original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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