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Investments (Tables)
3 Months Ended
Mar. 31, 2022
Investments All Other Investments [Abstract]  
Summary of Cash Equivalents

Cash equivalents consisted of the following as of March 31, 2022 (in thousands):

 

 

March 31, 2022

 

 

 

Cost

 

 

Estimated Fair Value

 

Institutional money market funds

 

$

30,001

 

 

$

30,001