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Fair Value Measurements (Tables)
9 Months Ended
Sep. 30, 2021
Fair Value Measurements  
Summary of major categories of financial assets and liabilities measured at fair value on a recurring basis

The following fair value hierarchy table presents information about each major category of our financial assets and liabilities measured at fair value on a recurring basis (in thousands):

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Level 1

    

Level 2

    

Level 3

    

Total

 

September 30, 2021

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Assets

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​

​

​

​

​

​

​

​

​

​

​

​

Money market funds (cash equivalents)

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$

113,340

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$

—

​

$

—

​

$

113,340

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Total assets

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$

113,340

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$

—

​

$

—

​

$

113,340

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December 31, 2020

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Assets

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​

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​

​

​

​

​

​

​

​

Money market funds (cash equivalents)

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$

138,509

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$

—

​

$

—

​

$

138,509

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Certificates of deposit

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​

1,474

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​

—

​

​

—

​

​

1,474

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Total assets

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$

139,983

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$

—

​

$

—

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$

139,983

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