XML 92 R70.htm IDEA: XBRL DOCUMENT v3.20.4
Income taxes - Deferred tax assets and liabilities (Details) - CAD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Deferred tax assets:    
Non-capital and net capital loss carryforwards $ 40,758 $ 44,763
Finance lease obligations 27,736 27,220
Stock-based compensation 2,872 3,393
Other 1,990 682
Subtotal 73,356 76,058
Less: valuation allowance (391) (881)
Deferred tax assets, net of valuation allowance 72,965 75,177
Deferred tax liabilities:    
Contract assets 1,524 4,805
Property, plant and equipment 117,768 106,104
Other 1,461 1,114
Deferred tax liabilities, gross 120,753 112,023
Net deferred income tax liability 47,788 36,846
Classified as:    
Deferred tax asset 16,407 15,655
Deferred tax liability (64,195) (52,501)
Net deferred income tax liability $ (47,788) $ (36,846)