Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Financial Assets Measured at Fair Value on Recurring Basis (Details)

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Fair Value Measurements - Financial Assets Measured at Fair Value on Recurring Basis (Details) - USD ($)
$ in Thousands
Mar. 31, 2024
Dec. 31, 2023
Short-term investments:    
Short-term investments $ 48,552 $ 48,011
Fair Value, Measurements, Recurring    
Short-term investments:    
Total 222,508 240,506
Fair Value, Measurements, Recurring | Money Market Funds    
Cash equivalents:    
Money market funds 173,956 180,124
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)    
Short-term investments:    
Total 173,956 180,124
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Money Market Funds    
Cash equivalents:    
Money market funds 173,956 180,124
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)    
Short-term investments:    
Total 48,552 60,382
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Money Market Funds    
Cash equivalents:    
Money market funds 0 0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)    
Short-term investments:    
Total 0 0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Money Market Funds    
Cash equivalents:    
Money market funds 0 0
Fair Value, Measurements, Recurring | U.S. Government Securities    
Cash equivalents:    
Money market funds   12,371
Short-term investments:    
Short-term investments 48,552 48,011
Fair Value, Measurements, Recurring | U.S. Government Securities | Quoted Prices in Active Markets for Identical Assets (Level 1)    
Short-term investments:    
Short-term investments 0 0
Fair Value, Measurements, Recurring | U.S. Government Securities | Significant Other Observable Inputs (Level 2)    
Cash equivalents:    
Money market funds   12,371
Short-term investments:    
Short-term investments 48,552 48,011
Fair Value, Measurements, Recurring | U.S. Government Securities | Significant Unobservable Inputs (Level 3)    
Short-term investments:    
Short-term investments $ 0 $ 0