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Cash Equivalents and Marketable Securities - Schedule of Cash Equivalents and Marketable Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis	$ 318,979	$ 299,026
Unrealized Gains	19	10
Unrealized Losses	(12)	(626)
Fair Value	318,986	298,410
Less amounts classified as cash equivalents, Amortized Cost Basis	(81,834)	(47,254)	$ (96,779)
Marketable Securities
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis	239,268	255,708
Unrealized Gains	17	8
Unrealized Losses	(11)	(626)
Fair Value	239,274	255,090
Cash Equivalents
Cash And Cash Equivalents [Line Items]
Less amounts classified as cash equivalents, Amortized Cost Basis	(79,711)	(43,318)
Less amounts classified as cash equivalents, Unrealized Gains	(2)	(2)
Less amounts classified as cash equivalents, Unrealized Losses	1
Less amounts classified as cash equivalents, Fair Value	(79,712)	(43,320)
Money Market Funds
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis	54,078	36,486
Fair Value	54,078	36,486
Commercial Paper
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis	78,348	87,140
Fair Value	78,348	87,140
Corporate Debt Securities
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis	54,501	36,554
Unrealized Gains	4	2
Unrealized Losses	(11)	(127)
Fair Value	54,494	36,429
Asset-backed Securities
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis	27,743	14,026
Unrealized Gains	8
Unrealized Losses	(1)	(10)
Fair Value	27,750	14,016
U.S. Government Securities
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis	104,309	91,619
Unrealized Gains	7	8
Unrealized Losses		(376)
Fair Value	$ 104,316	91,251
U.S. Agency Securities
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis		16,646
Unrealized Losses		(39)
Fair Value		16,607
Supranational Debt Securities
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis		16,555
Unrealized Losses		(74)
Fair Value		$ 16,481

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