Fair Value Measurements and Fair Value of Financial Instruments - Assets Measured on Recurring Basis (Details) - Fair Value, Recurring - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Total cash equivalents	$ 42,839	$ 40,288
Total investments	206,212	258,760
Total assets measured at fair value	249,051	299,048
U.S. Treasury securities
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Total investments	88,030	150,116
Commercial paper
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Total cash equivalents	2,992	4,191
Total investments	17,139	12,239
Corporate debt securities
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Total investments	101,043	96,405
Money market funds
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Total cash equivalents	39,847	36,097
Level 1
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Total cash equivalents	39,847	36,097
Total investments	0	0
Total assets measured at fair value	39,847	36,097
Level 1 | U.S. Treasury securities
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Total investments	0	0
Level 1 | Commercial paper
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Total cash equivalents	0	0
Total investments	0	0
Level 1 | Corporate debt securities
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Total investments	0	0
Level 1 | Money market funds
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Total cash equivalents	39,847	36,097
Level 2
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Total cash equivalents	2,992	4,191
Total investments	206,212	258,760
Total assets measured at fair value	209,204	262,951
Level 2 | U.S. Treasury securities
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Total investments	88,030	150,116
Level 2 | Commercial paper
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Total cash equivalents	2,992	4,191
Total investments	17,139	12,239
Level 2 | Corporate debt securities
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Total investments	101,043	96,405
Level 2 | Money market funds
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Total cash equivalents	0	0
Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Total cash equivalents	0	0
Total investments	0	0
Total assets measured at fair value	0	0
Level 3 | U.S. Treasury securities
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Total investments	0	0
Level 3 | Commercial paper
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Total cash equivalents	0	0
Total investments	0	0
Level 3 | Corporate debt securities
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Total investments	0	0
Level 3 | Money market funds
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Total cash equivalents	$ 0	$ 0