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Consolidated Statements of Changes in Equity - CAD ($)
$ in Thousands
Total
Shareholders' Capital [Member]
Contributed Surplus [Member]
Accumulated Other Comprehensive Income [Member]
Deficit [Member]
Balance at Dec. 31, 2016 $ 1,962,118 $ 2,319,293 $ 38,937 $ 156,456 $ (552,568)
Net loss for the period (132,036)       (132,036)
Other comprehensive income (loss) for the period (24,846)     (24,846)  
Share based compensation expense 5,100   5,100    
Balance at Dec. 31, 2017 1,810,336 2,319,293 44,037 131,610 (684,604)
Net loss for the period (294,270)       (294,270)
Other comprehensive income (loss) for the period 30,404     30,404  
Redemption of non-management directors DSUs 1,800 2,609 (809)    
Share options exercised 275 378 (103)    
Share based compensation expense 9,207   9,207    
Balance at Dec. 31, 2018 $ 1,557,752 $ 2,322,280 $ 52,332 $ 162,014 $ (978,874)