XML 48 R35.htm IDEA: XBRL DOCUMENT v3.21.1
Collaboration Agreements and Revenues - Roll-forward of Related Contract Liabilities (Detail)
$ in Thousands
 3 Months Ended
Mar. 31, 2021
USD ($)
Contract with Customer Liability [Line Items]  
Balance at December 31, 2020 $ (2,147)
Balance at March 31, 2021 (3,691)
AstraZeneca Agreements [Member]  
Contract with Customer Liability [Line Items]  
Balance at December 31, 2020 (137,338)
Additions (15,881)
Balance at March 31, 2021 (142,813)
Recognized as Revenue 10,406
Product Revenue, Net [Member] | Direct Sales [Member] | Contract Liabilities [Member]  
Contract with Customer Liability [Line Items]  
Balance at December 31, 2020 (15,137)
Additions (1,422)
Deduction 533
Currency Translation and Other 47
Balance at March 31, 2021 (15,979)
Drug Product Revenue [Member] | Astellas Agreement [Member]  
Contract with Customer Liability [Line Items]  
Balance at December 31, 2020 (5,984)
Additions (11,759)
Balance at March 31, 2021 (17,743)
Recognized as Revenue $ 0