XML 49 R35.htm IDEA: XBRL DOCUMENT v3.22.0.1
Termination of Merger with Illumina (Narrative) (Details) - USD ($)
$ in Thousands
 1 Months Ended 3 Months Ended 12 Months Ended
Feb. 09, 2021
Apr. 20, 2020
Feb. 28, 2021
Dec. 31, 2020
Mar. 31, 2020
Dec. 31, 2019
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Merger Termination [Line Items]                  
(Loss)/Gain from Continuation Advances from Illumina             $ (52,000) $ 34,000 $ 18,000
Possible Continuation Advances payable         $ 52,000        
Equity or debt financing that must be raised in a single transaction             100,000    
Termination fee received   $ 98,000              
Advisor fees paid   $ 6,000              
Other income, net       $ 98,000     $ 93 2,055 1,022
Illumina, FC Ops Corp [Member]                  
Merger Termination [Line Items]                  
Continuation Advances         $ 34,000 $ 18,000      
Other income, net               $ 34,000 $ 18,000
Convertible Senior Notes [Member]                  
Merger Termination [Line Items]                  
Principal amount of notes $ 900,000   $ 900,000            
Debt instrument, stated interest rate 1.50%   1.50%            
Maturity date Feb. 15, 2028   Feb. 15, 2028            
Continuation Advances paid     $ 52,000