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Collaborative arrangements (Tables)
 9 Months Ended
Sep. 30, 2018
Celgene Corporation [Member]  
Changes in Balances of Company's Receivables and Contract Liabilities

The following table presents changes in the balances of the Company’s Celgene receivables and contract liabilities during the nine months ended September 30, 2018:

 

(in thousands)

Balance at

beginning of

period under

Topic 606

 

 

Additions

 

 

Deductions

 

 

Balance at

end of

period under

Topic 606

 

Receivables

$

4,635

 

 

$

1,641

 

 

 

(6,276

)

 

$

—

 

Contract liabilities:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Payable included in accrued expenses

 

—

 

 

$

8,031

 

 

$

(2,824

)

 

$

5,207

 

Deferred revenue

$

76,812

 

 

 

—

 

 

$

(31,981

)

 

$

44,831