Marketable Securities (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 430,956		$ 724,726
Gross Unrealized Gains	22	$ 38
Gross Unrealized Losses	(516)	(1,302)
Fair Value	430,462		723,462
U.S. treasury securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	372,356		549,944
Gross Unrealized Gains	22	29
Gross Unrealized Losses	(398)	(849)
Fair Value	371,980		549,124
Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost			35,293
Gross Unrealized Gains		0
Gross Unrealized Losses		(86)
Fair Value			35,207
Commercial paper
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	58,600		139,489
Gross Unrealized Gains	0	9
Gross Unrealized Losses	(118)	$ (367)
Fair Value	$ 58,482		$ 139,131