Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation and Summary of Significant Accounting Policies - Accounting for Share-Based Compensation (Details)

v3.20.2
Basis of Presentation and Summary of Significant Accounting Policies - Accounting for Share-Based Compensation (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Basis of Presentation [Line Items]        
Share-based compensation expense $ 7,359 $ 6,571 $ 13,012 $ 11,918
SBC - Research and development expenses        
Basis of Presentation [Line Items]        
Share-based compensation expense 3,019 2,528 5,416 4,655
SBC - General and administrative expenses        
Basis of Presentation [Line Items]        
Share-based compensation expense $ 4,340 $ 4,043 $ 7,596 $ 7,263