Fair Value Measurements (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Fair Value Measurements
Short-term investments (money market funds, U.S. Government Securities and Agency Investments)	$ 33,576
Recurring | Estimate of fair value measurement
Fair Value Measurements
Cash equivalents (money market funds, U.S. Government Securities and Agency Investments)	272,667
Recurring | Money market funds, US Government Securities and Agency Investments | Estimate of fair value measurement
Fair Value Measurements
Cash equivalents (money market funds, U.S. Government Securities and Agency Investments)		$ 261,090
Short-term investments (money market funds, U.S. Government Securities and Agency Investments)	33,576
Total	306,243
Recurring | Level 1
Fair Value Measurements
Cash equivalents (money market funds, U.S. Government Securities and Agency Investments)	272,667
Recurring | Level 1 | Money market funds, US Government Securities and Agency Investments
Fair Value Measurements
Cash equivalents (money market funds, U.S. Government Securities and Agency Investments)		$ 261,090
Short-term investments (money market funds, U.S. Government Securities and Agency Investments)	33,576
Total	$ 306,243