Quarterly report pursuant to Section 13 or 15(d)

Share-based compensation (Details)

v3.20.2
Share-based compensation (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Dec. 19, 2019
Apr. 29, 2019
Stock Awards [Abstract]            
Share-based compensation expense $ 1,543 $ 2,496 $ 7,047 $ 6,708    
Stock options            
Stock Awards [Abstract]            
Awards granted (in shares)   160,000 300,000 5,993,000    
2019 Plan            
Stock Awards [Abstract]            
Awards available for issuance (in shares)           6,000,000
Amended 2019 Plan            
Stock Awards [Abstract]            
Awards available for issuance (in shares)         9,000,000