Cash, Cash Equivalents and Marketable Securities - Summary of Company Cash, Cash Equivalents and Short-term Investments (Detail) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023
Cash and Cash Equivalents [Line Items]
Available for sale debt securities, Amortized cost	$ 1,077,854	$ 1,246,875
Available for sale debt securities, Gross unrealized gains	6	1,124
Available for sale debt securities, Gross unrealized losses	(1,008)	(179)
Cash and cash equivalents, Amortized cost	1,461,477	1,675,305
Cash and cash equivalents, Gross unrealized losses	(1)
Cash and cash equivalents	383,622	428,430	$ 851,929
Cash, cash equivalents and investments, Amortized cost	383,623	428,430
Cash, cash equivalents and investments, Gross unrealized gains	6	1,124
Cash, cash equivalents and investments, Gross unrealized losses	(1,009)	(179)
Cash, cash equivalents and investments, Fair value	1,460,474	1,676,250
Available for sale debt securities current, Fair value	1,076,852	1,247,820
Cash and Money Market Funds [Member]
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents, Amortized cost	345,443	374,750
Cash and cash equivalents	345,443	374,750
Commercial Paper [Member]
Cash and Cash Equivalents [Line Items]
Available for sale debt securities, Fair value	26,866	113,362
Cash and cash equivalents, Amortized cost	26,866	113,362
Government and Government Agency Bonds [Member]
Cash and Cash Equivalents [Line Items]
Available for sale debt securities, Gross unrealized gains		1,006
Available for sale debt securities, Gross unrealized losses	(894)	(171)
Available for sale debt securities, Fair value	854,254	1,001,137
Cash and cash equivalents, Amortized cost	855,148	1,000,302
Corporate Bond [Member]
Cash and Cash Equivalents [Line Items]
Available for sale debt securities, Gross unrealized gains	6	118
Available for sale debt securities, Gross unrealized losses	(115)	(8)
Available for sale debt securities, Fair value	180,781	130,380
Cash and cash equivalents, Amortized cost	180,890	130,270
Certificates of Deposit [Member]
Cash and Cash Equivalents [Line Items]
Available for sale debt securities, Fair value	53,130	56,621
Cash and cash equivalents, Amortized cost	$ 53,130	$ 56,621

Cash and cash equivalents amortized cost basis.

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Cash and cash equivalents gross unrealized loss before tax.

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Cash cash equivalents and investments.

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Cash cash equivalents and investments amortized cost basis.

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Cash cash equivalents and investments gross unrealized gain before tax.

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Cash cash equivalents and investments gross unrealized loss before tax.

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Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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

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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).

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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 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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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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