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Fair value of financial instruments (Tables)
9 Months Ended
Sep. 30, 2022
Fair value of financial instruments  
Schedule of fair value measurements

Fair value measurements are as follows (in thousands):

September 30, 2022

Total

    

Quoted prices in active markets (Level 1)

    

Significant other observable inputs (Level 2)

    

Significant unobservable inputs (Level 3)

Financial assets

​

  

 

​

  

​

​

  

 

​

  

Cash equivalents - money market funds

$

333,716

 

$

333,716

​

$

—

 

$

—

​

December 31, 2021

Total

    

Quoted prices in active markets (Level 1)

    

Significant other observable inputs (Level 2)

    

Significant unobservable inputs (Level 3)

Financial assets

​

  

 

​

  

​

​

  

 

​

  

Cash equivalents - money market funds

$

332,093

 

$

332,093

​

$

—

 

$

—