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	Mar. 31, 2024	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost or Amortized Cost	$ 139,783	$ 97,151
Gross Unrealized Losses	(16)	(50)
Total Estimated Fair Value	139,767	97,101
Money Market Funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost or Amortized Cost	132,475	78,661
Total Estimated Fair Value	132,475	78,661
U.S. Government Agency Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost or Amortized Cost	4,975	11,932
Gross Unrealized Losses	(12)	(39)
Total Estimated Fair Value	4,963	11,893
Yankee Bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost or Amortized Cost	1,977	1,956
Gross Unrealized Losses	(4)	(5)
Total Estimated Fair Value	1,973	1,951
Agency Bond
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost or Amortized Cost		2,998
Gross Unrealized Losses		(4)
Total Estimated Fair Value		2,994
Asset-Backed Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost or Amortized Cost	356	1,604
Gross Unrealized Losses		(2)
Total Estimated Fair Value	$ 356	$ 1,602