Fair Value Measurements and Fair Value of Financial Instruments - Unrealized Gain (Loss) (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Amortized Cost Basis	$ 248,620	$ 298,912
Unrealized Gains	441	342
Unrealized Losses	(10)	(206)
Fair Value	249,051	299,048
Total cash equivalents
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Amortized Cost Basis	42,839	40,288
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Value	42,839	40,288
Total investments
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Amortized Cost Basis	205,781	258,624
Unrealized Gains	441	342
Unrealized Losses	(10)	(206)
Fair Value	206,212	258,760
Money market funds | Total cash equivalents
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Amortized Cost Basis	39,847	36,097
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Value	39,847	36,097
U.S. Treasury securities | Total investments
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Amortized Cost Basis	87,809	150,095
Unrealized Gains	222	121
Unrealized Losses	(1)	(100)
Fair Value	88,030	150,116
Commercial paper | Total cash equivalents
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Amortized Cost Basis	2,992	4,191
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Value	2,992	4,191
Commercial paper | Total investments
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Amortized Cost Basis	17,123	12,227
Unrealized Gains	16	12
Unrealized Losses	0	0
Fair Value	17,139	12,239
Corporate debt securities | Total investments
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Amortized Cost Basis	100,849	96,302
Unrealized Gains	203	209
Unrealized Losses	(9)	(106)
Fair Value	$ 101,043	$ 96,405