Fair Value Measurements and Fair Value of Financial Instruments - Assets Measured on Recurring Basis (Details) - Fair Value, Recurring - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Total cash equivalents	$ 31,064	$ 29,181
Total investments	312,694	340,583
Total assets measured at fair value	343,758	369,764
U.S. Treasury securities
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Total cash equivalents		4,985
Total investments	155,073	225,180
U.S. Non-Treasury securities
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Total investments	7,096	11,901
Commercial paper
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Total investments	29,547	18,186
Corporate debt securities
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Total cash equivalents		1,550
Total investments	120,978	85,316
Money market funds
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Total cash equivalents	31,064	22,646
Level 1
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Total cash equivalents	31,064	22,646
Total investments	0	0
Total assets measured at fair value	31,064	22,646
Level 1 | U.S. Treasury securities
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Total cash equivalents		0
Total investments	0	0
Level 1 | U.S. Non-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 investments	0	0
Level 1 | Corporate debt securities
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Total cash equivalents		0
Total investments	0	0
Level 1 | Money market funds
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Total cash equivalents	31,064	22,646
Level 2
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Total cash equivalents	0	6,535
Total investments	312,694	340,583
Total assets measured at fair value	312,694	347,118
Level 2 | U.S. Treasury securities
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Total cash equivalents		4,985
Total investments	155,073	225,180
Level 2 | U.S. Non-Treasury securities
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Total investments	7,096	11,901
Level 2 | Commercial paper
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Total investments	29,547	18,186
Level 2 | Corporate debt securities
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Total cash equivalents		1,550
Total investments	120,978	85,316
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 cash equivalents		0
Total investments	0	0
Level 3 | U.S. Non-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 investments	0	0
Level 3 | Corporate debt securities
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Total cash equivalents		0
Total investments	0	0
Level 3 | Money market funds
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Total cash equivalents	$ 0	$ 0