Fair Value Measurement - Schedule of Fair Value, Financial Assets and Liabilities Measured on Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
U.S. Treasury securities
Assets
U.S. Treasury securities	$ 169,963
Quoted prices in active markets for identical assets (Level 1) | Fair Value, Recurring
Liabilities
Note Purchase Agreement	0	$ 0
Quoted prices in active markets for identical assets (Level 1) | Fair Value, Recurring | U.S. Treasury securities
Assets
U.S. Treasury securities	169,963	128,519
Quoted prices in active markets for identical assets (Level 1) | Fair Value, Recurring | Money Market fund
Assets
Money Market fund	252,519	28,339
Significant other observable inputs (Level 2) | Fair Value, Recurring
Liabilities
Note Purchase Agreement	0	0
Significant other observable inputs (Level 2) | Fair Value, Recurring | U.S. Treasury securities
Assets
U.S. Treasury securities	0	0
Significant other observable inputs (Level 2) | Fair Value, Recurring | Money Market fund
Assets
Money Market fund	0	0
Significant unobservable inputs (Level 3) | Fair Value, Recurring
Liabilities
Note Purchase Agreement	75,700	75,700
Significant unobservable inputs (Level 3) | Fair Value, Recurring | U.S. Treasury securities
Assets
U.S. Treasury securities	0	0
Significant unobservable inputs (Level 3) | Fair Value, Recurring | Money Market fund
Assets
Money Market fund	$ 0	$ 0