Marketable Securities - Summary of Available-for-Sale Debt Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Marketable Securities [Line Items]
Amortized Cost	$ 636,877	$ 326,907
Unrealized Gains	9	166
Unrealized Losses	(2,100)	(724)
Fair Value	634,786	326,349
US Treasury Securities
Marketable Securities [Line Items]
Amortized Cost	193,850	23,361
Unrealized Gains	6	5
Unrealized Losses	(298)	(113)
Fair Value	193,558	23,253
US Government Agencies
Marketable Securities [Line Items]
Amortized Cost	121,559	142,948
Unrealized Gains	3	48
Unrealized Losses	(365)	(305)
Fair Value	121,197	142,691
Commercial Paper
Marketable Securities [Line Items]
Amortized Cost	23,621
Unrealized Gains	0
Unrealized Losses	(33)
Fair Value	23,588
Corporate Securities
Marketable Securities [Line Items]
Amortized Cost	297,847	160,598
Unrealized Gains	0	113
Unrealized Losses	(1,404)	(306)
Fair Value	$ 296,443	$ 160,405