Fair Value Measurement - Schedule of Debt Securities, Fair Value of U.S. Treasury Securities and Money Market Fund (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Debt Securities, Available-for-Sale [Line Items]
Money market fund, included in cash and cash equivalents, amortized cost	$ 50,811	$ 383,221
U.S. Treasury securities, amortized cost	326,216
Investments above with no unrealized loss, amortized cost	245,157
Investments above with unrealized loss, amortized cost	81,059
U.S. Treasury securities, gross unrealized gains	466
Investments above with no unrealized loss, gross unrealized gains	466
U.S. Treasury securities, gross unrealized losses	(57)
Investments above with unrealized loss, gross unrealized losses	(57)
Debt securities, available-for-sale, fair value	326,625
Investments above with no unrealized loss, fair value	245,623
Investments above with unrealized loss, fair value	81,002
Money Market fund
Debt Securities, Available-for-Sale [Line Items]
Money market fund, included in cash and cash equivalents, amortized cost	28,397
Money market fund, included in cash and cash equivalents, fair value	28,397
U.S. Treasury and government agency securities
Debt Securities, Available-for-Sale [Line Items]
U.S. Treasury securities, amortized cost	163,159
U.S. Treasury securities, gross unrealized gains	86
U.S. Treasury securities, gross unrealized losses	(46)
Debt securities, available-for-sale, fair value	163,199
U.S. Treasury and government agency securities \| Short-term investments
Debt Securities, Available-for-Sale [Line Items]
U.S. Treasury securities, amortized cost	128,447
U.S. Treasury securities, gross unrealized gains	44
U.S. Treasury securities, gross unrealized losses	(20)
Debt securities, available-for-sale, fair value	128,471
U.S. Treasury and government agency securities \| Long-term investments
Debt Securities, Available-for-Sale [Line Items]
U.S. Treasury securities, amortized cost	34,712
U.S. Treasury securities, gross unrealized gains	42
U.S. Treasury securities, gross unrealized losses	(26)
Debt securities, available-for-sale, fair value	34,728
Corporate debt securities, included in:
Debt Securities, Available-for-Sale [Line Items]
U.S. Treasury securities, amortized cost	109,934
U.S. Treasury securities, gross unrealized gains	372
U.S. Treasury securities, gross unrealized losses	(11)
Debt securities, available-for-sale, fair value	110,295
Corporate debt securities, included in: \| Short-term investments
Debt Securities, Available-for-Sale [Line Items]
U.S. Treasury securities, amortized cost	42,125
U.S. Treasury securities, gross unrealized gains	75
U.S. Treasury securities, gross unrealized losses	(2)
Debt securities, available-for-sale, fair value	42,198
Corporate debt securities, included in: \| Long-term investments
Debt Securities, Available-for-Sale [Line Items]
U.S. Treasury securities, amortized cost	67,809
U.S. Treasury securities, gross unrealized gains	297
U.S. Treasury securities, gross unrealized losses	(9)
Debt securities, available-for-sale, fair value	68,097
Commercial paper, included in:
Debt Securities, Available-for-Sale [Line Items]
U.S. Treasury securities, amortized cost	24,726
U.S. Treasury securities, gross unrealized gains	8
U.S. Treasury securities, gross unrealized losses	0
Debt securities, available-for-sale, fair value	24,734
Commercial paper, included in: \| Short-term investments
Debt Securities, Available-for-Sale [Line Items]
U.S. Treasury securities, amortized cost	24,726
U.S. Treasury securities, gross unrealized gains	8
U.S. Treasury securities, gross unrealized losses	0
Debt securities, available-for-sale, fair value	$ 24,734

Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, Before Tax, With Accumulated Unrealized Loss

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Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, Before Tax, Without Accumulated Unrealized Loss

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Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, After Allowance For Credit Loss, With Accumulated Unrealized Loss

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Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, After Allowance For Credit Loss, Without Accumulated Unrealized Loss

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Debt Securities, Available-for-Sale, Excluding Accrued Interest, Without Accumulated Unrealized Loss

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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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Amount of cash and cash equivalent. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate.

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Fair value portion 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.

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Amortized cost excluding accrued interest, after allowance for credit loss, 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 excluding accrued interest, 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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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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