Fair Value Measurements - Schedule of Cost Or Amortized Cost, Gross Unrealized Gains, Gross Unrealized Losses, And Total Estimated Fair Value Of Financial Assets (Details) - Fair Value Measurements Recurring - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost or Amortized Cost	$ 97,151	$ 189,217
Gross Unrealized Gains		14
Gross Unrealized Losses	(50)	(1,263)
Total Estimated Fair Value	97,101	187,968
Money Market Funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost or Amortized Cost	78,661	14,620
Total Estimated Fair Value	78,661	14,620
U.S. Government Agency Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost or Amortized Cost	11,932	93,065
Gross Unrealized Losses	(39)	(982)
Total Estimated Fair Value	11,893	92,083
Corporate Notes and Bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost or Amortized Cost		27,133
Gross Unrealized Gains		6
Gross Unrealized Losses		(186)
Total Estimated Fair Value		26,953
Yankee Bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost or Amortized Cost	1,956	3,815
Gross Unrealized Losses	(5)	(7)
Total Estimated Fair Value	1,951	3,808
Commercial Paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost or Amortized Cost		24,073
Total Estimated Fair Value		24,073
Treasury Bill
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost or Amortized Cost		11,361
Gross Unrealized Gains		2
Gross Unrealized Losses		(4)
Total Estimated Fair Value		11,359
Agency Bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost or Amortized Cost	2,998	5,863
Gross Unrealized Gains		4
Gross Unrealized Losses	(4)	(2)
Total Estimated Fair Value	2,994	5,865
Asset-Backed Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost or Amortized Cost	1,604	9,287
Gross Unrealized Gains		2
Gross Unrealized Losses	(2)	(82)
Total Estimated Fair Value	$ 1,602	$ 9,207