Fair Value Measurement - Schedule of Debt Securities, Fair Value of U.S. Treasury Securities and Money Market Fund (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Debt Securities, Available-for-Sale [Line Items]
U.S. Treasury securities, amortized cost	$ 482,564	$ 549,441
Investments above with no unrealized loss, amortized cost	105,039	309,888
Investments above with unrealized loss, amortized cost	377,525	239,553
Gross unrealized gains	179	505
Investments above with no unrealized loss, gross unrealized gains	179	505
Investments above with unrealized loss, gross unrealized gains	0	0
Gross unrealized losses	(884)	(172)
Investments above with no unrealized loss, gross unrealized loss	0	0
Investments above with unrealized loss, gross unrealized losses	(884)	(172)
Debt securities, available-for-sale, fair value	481,859	549,774
Investments above with no unrealized loss, fair value	105,218	310,393
Investments above with unrealized loss, fair value	376,641	239,381
Money Market fund
Debt Securities, Available-for-Sale [Line Items]
Debt securities, available-for-sale, fair value	606	23,970
Money Market fund \| Cash and cash equivalents
Debt Securities, Available-for-Sale [Line Items]
U.S. Treasury securities, amortized cost	606	23,970
Gross unrealized gains	0	0
Gross unrealized losses	0	0
Debt securities, available-for-sale, fair value	606	23,970
U.S. Treasury and government agency securities
Debt Securities, Available-for-Sale [Line Items]
U.S. Treasury securities, amortized cost	289,337	307,740
Gross unrealized gains	31	101
Gross unrealized losses	(504)	(109)
Debt securities, available-for-sale, fair value	288,864	307,732
U.S. Treasury and government agency securities \| Cash and cash equivalents
Debt Securities, Available-for-Sale [Line Items]
U.S. Treasury securities, amortized cost	9,979	9,974
Gross unrealized gains	0	1
Gross unrealized losses	(1)	0
Debt securities, available-for-sale, fair value	9,978	9,975
U.S. Treasury and government agency securities \| Short-term investments
Debt Securities, Available-for-Sale [Line Items]
U.S. Treasury securities, amortized cost	117,574	134,625
Gross unrealized gains	30	73
Gross unrealized losses	(50)	(21)
Debt securities, available-for-sale, fair value	117,554	134,677
U.S. Treasury and government agency securities \| Long-term investments
Debt Securities, Available-for-Sale [Line Items]
U.S. Treasury securities, amortized cost	161,784	163,141
Gross unrealized gains	1	27
Gross unrealized losses	(453)	(88)
Debt securities, available-for-sale, fair value	161,332	163,080
Corporate debt securities, included in:
Debt Securities, Available-for-Sale [Line Items]
U.S. Treasury securities, amortized cost	178,194	183,126
Gross unrealized gains	148	393
Gross unrealized losses	(340)	(63)
Debt securities, available-for-sale, fair value	178,002	183,456
Corporate debt securities, included in: \| Short-term investments
Debt Securities, Available-for-Sale [Line Items]
U.S. Treasury securities, amortized cost	86,741	63,847
Gross unrealized gains	65	141
Gross unrealized losses	(36)	0
Debt securities, available-for-sale, fair value	86,770	63,988
Corporate debt securities, included in: \| Long-term investments
Debt Securities, Available-for-Sale [Line Items]
U.S. Treasury securities, amortized cost	91,453	119,279
Gross unrealized gains	83	252
Gross unrealized losses	(304)	(63)
Debt securities, available-for-sale, fair value	91,232	119,468
Commercial paper, included in:
Debt Securities, Available-for-Sale [Line Items]
U.S. Treasury securities, amortized cost	9,841	34,605
Gross unrealized gains	0	11
Gross unrealized losses	(7)	0
Debt securities, available-for-sale, fair value	9,834	34,616
Commercial paper, included in: \| Short-term investments
Debt Securities, Available-for-Sale [Line Items]
U.S. Treasury securities, amortized cost	9,841	34,605
Gross unrealized gains	0	11
Gross unrealized losses	(7)	0
Debt securities, available-for-sale, fair value	9,834	$ 34,616
Municipal bonds, included in:
Debt Securities, Available-for-Sale [Line Items]
U.S. Treasury securities, amortized cost	4,586
Gross unrealized gains	0
Gross unrealized losses	(33)
Debt securities, available-for-sale, fair value	4,553
Municipal bonds, included in: \| Long-term investments
Debt Securities, Available-for-Sale [Line Items]
U.S. Treasury securities, amortized cost	4,586
Gross unrealized gains	0
Gross unrealized losses	(33)
Debt securities, available-for-sale, fair value	$ 4,553

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 Gain, Before Tax, Without Accumulated Unrealized Loss

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Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, 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, Excluding Accrued Interest, With 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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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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