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	Jun. 30, 2024	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost or Amortized Cost	$ 186,957	$ 97,151
Gross Unrealized Losses	(3)	(50)
Total Estimated Fair Value	186,954	97,101
Money Market Funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost or Amortized Cost	181,391	78,661
Total Estimated Fair Value	181,391	78,661
U.S. Government Agency Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost or Amortized Cost	3,496	11,932
Gross Unrealized Losses	(3)	(39)
Total Estimated Fair Value	3,493	11,893
Yankee Bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cost or Amortized Cost	1,998	1,956
Gross Unrealized Losses		(5)
Total Estimated Fair Value	1,998	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	72	1,604
Gross Unrealized Losses		(2)
Total Estimated Fair Value	$ 72	$ 1,602