Annual reports filed by certain Canadian issuers pursuant to Section 15(d) and Rule 15d-4

Net loss per common share - Earnings per share computation (Details)

v3.19.1
Net loss per common share - Earnings per share computation (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Net loss per common share [Abstract]    
Net loss for the year $ (64,120) $ (70,792)
Weighted average number of ordinary shares outstanding 84,782 76,918
Net loss per common share (expressed in $ per share) $ (0.76) $ (0.92)