Annual report pursuant to Section 13 and 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
Dec. 31, 2023
Dec. 31, 2022
Short-term investments:    
Short-term investments $ 48,011 $ 24,940
Fair Value, Measurements, Recurring    
Short-term investments:    
Total 240,506 106,547
Fair Value, Measurements, Recurring | U.S. Government securities    
Cash and cash equivalents:    
Money market funds 12,371  
Short-term investments:    
Short-term investments 48,011 24,940
Fair Value, Measurements, Recurring | Money Market Funds    
Cash and cash equivalents:    
Money market funds 180,124 81,607
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)    
Short-term investments:    
Total 180,124 81,607
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. Government securities    
Cash and cash equivalents:    
Money market funds 0  
Short-term investments:    
Short-term investments 0 0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Money Market Funds    
Cash and cash equivalents:    
Money market funds 180,124 81,607
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)    
Short-term investments:    
Total 60,382 24,940
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | U.S. Government securities    
Cash and cash equivalents:    
Money market funds 12,371  
Short-term investments:    
Short-term investments 48,011 24,940
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Money Market Funds    
Cash and 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) | U.S. Government securities    
Cash and cash equivalents:    
Money market funds 0  
Short-term investments:    
Short-term investments 0 0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Money Market Funds    
Cash and cash equivalents:    
Money market funds $ 0 $ 0