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Fair Value Measurements - Recurring basis (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Money market funds    
Fair Value Measurements    
Amount of asset transferred into level 3 $ 0 $ 0
Amount of asset transferred out of level 3 0 0
Recurring    
Fair Value Measurements    
Total assets measured at fair value 123,770 27,866
Total current liabilities measured at fair value   1,243
Total liabilities measured at fair value 500 1,798
Recurring | Acquisition-related contingent consideration    
Fair Value Measurements    
Contingent consideration, current 500 343
Contingent consideration, long-term   555
Recurring | Acquisition-related contingent consideration - pension liability    
Fair Value Measurements    
Contingent consideration, current   900
Recurring | Money market funds    
Fair Value Measurements    
Cash and cash equivalents 94,165 27,866
Recurring | U.S. Treasury securities    
Fair Value Measurements    
Cash and cash equivalents 4,964  
Recurring | Marketable securities - U.S. Treasury securities due in 3 - 6 months    
Fair Value Measurements    
Marketable securities 24,641  
Recurring | Level 1    
Fair Value Measurements    
Total assets measured at fair value 94,165 27,866
Recurring | Level 1 | Money market funds    
Fair Value Measurements    
Cash and cash equivalents 94,165 27,866
Recurring | Level 2    
Fair Value Measurements    
Total assets measured at fair value 29,605  
Recurring | Level 2 | U.S. Treasury securities    
Fair Value Measurements    
Cash and cash equivalents 4,964  
Recurring | Level 2 | Marketable securities - U.S. Treasury securities due in 3 - 6 months    
Fair Value Measurements    
Marketable securities 24,641  
Recurring | Level 3    
Fair Value Measurements    
Total current liabilities measured at fair value   1,243
Total liabilities measured at fair value 500 1,798
Recurring | Level 3 | Acquisition-related contingent consideration    
Fair Value Measurements    
Contingent consideration, current $ 500 343
Contingent consideration, long-term   555
Recurring | Level 3 | Acquisition-related contingent consideration - pension liability    
Fair Value Measurements    
Contingent consideration, current   $ 900