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Basis of Presentation and Summary of Significant Accounting Policies (Details)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
CAD ($)
Plant
bbl
Mcf
Dec. 31, 2021
CAD ($)
Dec. 31, 2020
CAD ($)
Basis of Presentation and Summary of Significant Accounting Policies      
Percentage of voting power in subsidiaries 50.00%    
Volume of natural gas as numerator of energy equivalent conversion rate | Mcf 6,000    
Volume of crude oil as denominator of energy equivalent conversion rate | bbl 1    
Interests in resource properties, carrying amount $ 201,802    
Carrying amount $ 28,871 $ 49,065 $ 51,883
Number of power plants | Plant 1    
Combined revenue $ 63,689 71,291 59,432
Loss before taxes (23,956) 17,547 11,179
Income tax recovery (expense) (549) 10,176 10,967
Net loss (23,407) 7,371 $ 212
Deferred income tax assets $ 9,677 $ 9,619