Fair Value Measurements - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Financial assets at fair value:
Total financial assets at fair value	$ 204,972	$ 50,010
Money Market Funds
Financial assets at fair value:
Cash and cash equivalents	204,972	50,010
Fair Value, Inputs, Level 1
Financial assets at fair value:
Total financial assets at fair value	204,972	50,010
Fair Value, Inputs, Level 1 | Money Market Funds
Financial assets at fair value:
Cash and cash equivalents	204,972	50,010
Fair Value, Inputs, Level 2
Financial assets at fair value:
Total financial assets at fair value	0	0
Fair Value, Inputs, Level 2 | Money Market Funds
Financial assets at fair value:
Cash and cash equivalents	0	0
Fair Value, Inputs, Level 3
Financial assets at fair value:
Total financial assets at fair value	0	0
Fair Value, Inputs, Level 3 | Money Market Funds
Financial assets at fair value:
Cash and cash equivalents	$ 0	$ 0