Marketable Securities - Summary of Marketable Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2026	Dec. 31, 2025
Debt Securities, Available-for-Sale [Line Items]
Marketable securities held, Amortized Cost	$ 834,040	$ 949,155
Marketable securities held, Gross Unrealized Gains		1,185
Marketable securities held, Gross Unrealized Losses	(3,434)	(74)
Marketable securities held, Fair Value	830,606	950,266
Commercial Paper
Debt Securities, Available-for-Sale [Line Items]
Available-for-sale, Amortized Cost	316,639	304,861
Available-for-sale, Gross Unrealized Gains		162
Available-for-sale, Gross Unrealized Losses	(695)	(64)
Available-for-sale, Fair Value	315,944	304,959
Corporate Notes
Debt Securities, Available-for-Sale [Line Items]
Available-for-sale, Amortized Cost	72,501	149,928
Available-for-sale, Gross Unrealized Gains		128
Available-for-sale, Gross Unrealized Losses	(172)	(10)
Available-for-sale, Fair Value	72,329	150,046
U.S. Treasury Securities
Debt Securities, Available-for-Sale [Line Items]
Available-for-sale, Amortized Cost	411,326	462,112
Available-for-sale, Gross Unrealized Gains		872
Available-for-sale, Gross Unrealized Losses	(2,404)
Available-for-sale, Fair Value	408,922	462,984
U.S Government Securities
Debt Securities, Available-for-Sale [Line Items]
Available-for-sale, Amortized Cost	28,661	26,673
Available-for-sale, Gross Unrealized Gains		23
Available-for-sale, Gross Unrealized Losses	(163)
Available-for-sale, Fair Value	28,498	26,696
Corporate Equity Securities
Debt Securities, Available-for-Sale [Line Items]
Equity securities, Amortized Cost	4,913	5,581
Equity securities, Fair Value	$ 4,913	$ 5,581

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