Cash Equivalents and Marketable Securities - Schedule of Cash Equivalents and Marketable Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Cash Equivalents and Marketable Securities
Amortized Cost	$ 264,566	$ 426,937
Allowance for Credit Losses	0	0
Gross Unrealized Gains	553	611
Gross Unrealized Losses	(31)	(413)
Fair Value	265,088	427,135
Government agency securities
Cash Equivalents and Marketable Securities
Amortized Cost	13,999	103,507
Allowance for Credit Losses	0	0
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(26)	(327)
Fair Value	13,973	103,180
U.S. Treasuries
Cash Equivalents and Marketable Securities
Amortized Cost	148,228	168,858
Allowance for Credit Losses	0	0
Gross Unrealized Gains	553	611
Gross Unrealized Losses	0	0
Fair Value	148,781	169,469
Money market funds
Cash Equivalents and Marketable Securities
Amortized Cost	95,832	123,652
Allowance for Credit Losses	0	0
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	95,832	123,652
Corporate notes/bonds
Cash Equivalents and Marketable Securities
Amortized Cost	6,507	30,920
Allowance for Credit Losses	0	0
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(5)	(86)
Fair Value	$ 6,502	$ 30,834

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on 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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