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Collaborations (Tables)
 12 Months Ended
Dec. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Change in Accounts Receivable, Contract Asset and Liabilities

The following table presents the changes in accounts receivable, contract assets and liabilities for the year ended December 31, 2023 (in thousands)

 

 

 

Balance at
December 31, 2022

 

 

Additions

 

 

Deductions

 

 

Balance at
December 31, 2023

 

Accounts receivable and contract assets:

 

 

 

 

 

 

 

 

 

 

 

 

Billed receivables – Sanofi

 

$

—

 

 

$

68,757

 

 

$

(53,757

)

 

$

15,000

 

Unbilled receivables – Sanofi

 

 

2,537

 

 

 

14,982

 

 

 

(13,757

)

 

 

3,762

 

Total accounts receivable and contract assets

 

$

2,537

 

 

$

83,739

 

 

$

(67,514

)

 

$

18,762

 

Contract Liabilities:

 

 

 

 

 

 

 

 

 

 

 

 

Deferred Revenue – Vertex

 

$

8,399

 

 

$

—

 

 

$

(8,399

)

 

$

-

 

Deferred Revenue – Sanofi

 

 

54,861

 

 

 

69,983

 

 

 

(70,193

)

 

 

54,651

 

Total contract liabilities

 

$

63,260

 

 

$

69,983

 

 

$

(78,592

)

 

$

54,651