Marketable Securities - Summary of Available-for-Sale Debt Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Marketable Securities [Line Items]
Amortized Cost	$ 1,387,566	$ 1,260,621
Unrealized Gains	97	2,185
Unrealized Losses	(7,254)	(383)
Fair Value	1,380,409	1,262,423
US treasury securities
Marketable Securities [Line Items]
Amortized Cost	335,023	316,979
Unrealized Gains	30	623
Unrealized Losses	(1,767)	(34)
Fair Value	333,286	317,568
US government agencies
Marketable Securities [Line Items]
Amortized Cost	349,898	290,714
Unrealized Gains	3	276
Unrealized Losses	(2,058)	(81)
Fair Value	347,843	290,909
Commercial Paper
Marketable Securities [Line Items]
Amortized Cost	9,164	7,156
Unrealized Gains	0	1
Unrealized Losses	(3)	(2)
Fair Value	9,161	7,155
Corporate securities
Marketable Securities [Line Items]
Amortized Cost	693,481	645,772
Unrealized Gains	64	1,285
Unrealized Losses	(3,426)	(266)
Fair Value	$ 690,119	$ 646,791

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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+ Details

- Definition

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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