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Other Long-Term Liabilities (Details) - CAD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Disclosure of other non-current liabilities [text block] [Abstract]    
Current and long-term decommissioning liabilities $ 3.4 $ 3.9
Interest expense 0.1 0.1
Decommissioning liabilities $ 0.6
Decommissioning liabilities, description It is expected that the decommissioning liabilities will mature between 2022 and 2062.  
Interest payments $ 15.7