Quarterly report pursuant to Section 13 or 15(d)

(Loss) earnings per share - Narrative (Details)

v3.20.1
(Loss) earnings per share - Narrative (Details)
shares in Millions
3 Months Ended
Mar. 31, 2019
shares
Stock Options  
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]  
Anti-dilutive securities excluded from the calculation of diluted earnings per share 0.9
Warrants  
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]  
Anti-dilutive securities excluded from the calculation of diluted earnings per share 0.9
Restricted Share Units  
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]  
Anti-dilutive securities excluded from the calculation of diluted earnings per share 0.9