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Regeneron License and Collaboration Arrangement (Tables)
 6 Months Ended
Jun. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Summary of Change in Company's Contract Liabilities

The following tables present changes in the Company’s contract liabilities for the six months ended June 30, 2022 and 2021 (in thousands):

 

Six Months Ended June 30, 2022

 

Balance at
Beginning
of Period

 

 

Deductions
(1)

 

 

Balance at
End of Period

 

Contract liability

 

$

4,805

 

 

$

(4,805

)

 

$

—

 

 

Six Months Ended June 30, 2021

 

Balance at
Beginning
of Period

 

 

Deductions
(1)

 

 

Balance at
End of Period

 

Contract liability

 

$

13,980

 

 

$

(833

)

 

$

13,147