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Fair Value Measurements - Assets Measured on Recurring Basis (Details) - USD ($)
$ in Thousands
 9 Months Ended 12 Months Ended
Sep. 30, 2024
Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Short-term investment $ 7,400  
Fair Value, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Short-term investment 7,405 $ 7,745
Contingent consideration 9,100  
Short-term investment, total gains (losses) (340) (2,538)
Business acquisition contingent consideration payable, total gains (losses) 1,800  
Quoted prices in active market (Level 1) | Fair Value, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Short-term investment 7,405 7,745
Contingent consideration 0  
Significant other observable inputs (Level 2) | Fair Value, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Short-term investment 0 0
Contingent consideration 0  
Significant other unobservable inputs (Level 3) | Fair Value, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Short-term investment 0 $ 0
Contingent consideration $ 9,100