Quarterly report pursuant to Section 13 or 15(d)

Share-based compensation (Details)

v3.20.2
Share-based compensation (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Dec. 19, 2019
Apr. 29, 2019
Stock Awards [Abstract]            
Share-based compensation expense $ 3.0 $ 4.0 $ 5.5 $ 4.2    
Stock Options [Member]            
Stock Awards [Abstract]            
Granted (in shares) 200,000 5,833,000 300,000 5,833,000    
2019 Incentive Award Plan [Member]            
Stock Awards [Abstract]            
Authorized issuance shares of common stock (in shares)           6,000,000
Amended and Restated Incentive Award Plan 2019 [Member]            
Stock Awards [Abstract]            
Authorized issuance shares of common stock (in shares)         9,000,000