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Financial Instruments and Risk Management - Carrying Value and Fair Value of Financial Instruments (Details) - CAD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
FVTPL    
Disclosure Of Financial Assets And Liabilities [Line Items]    
Financial liabilities $ 0 $ (134,020)
Liabilities, at fair value 0 (134,020)
FVTPL | Financial Derivatives | Level 2    
Disclosure Of Financial Assets And Liabilities [Line Items]    
Financial liabilities 0 (134,020)
Liabilities, at fair value 0 (134,020)
Amortized cost    
Disclosure Of Financial Assets And Liabilities [Line Items]    
Financial liabilities (1,212,033) (1,570,390)
Liabilities, at fair value (1,230,090) (1,615,095)
Amortized cost | Trade and other payables | Level 1    
Disclosure Of Financial Assets And Liabilities [Line Items]    
Financial liabilities (281,404) (190,692)
Liabilities, at fair value (281,404) (190,692)
Amortized cost | Credit Facilities | Level 1    
Disclosure Of Financial Assets And Liabilities [Line Items]    
Financial liabilities (383,031) (505,171)
Liabilities, at fair value (385,394) (506,514)
Amortized cost | Long-term notes | Level 1    
Disclosure Of Financial Assets And Liabilities [Line Items]    
Financial liabilities (547,598) (874,527)
Liabilities, at fair value (563,292) (917,889)
FVTPL    
Disclosure Of Financial Assets And Liabilities [Line Items]    
Financial assets 10,105 8,654
Financial assets, at fair value 10,105 8,654
FVTPL | Level 2    
Disclosure Of Financial Assets And Liabilities [Line Items]    
Financial assets 10,105 8,654
Financial assets, at fair value 10,105 8,654
Amortized cost    
Disclosure Of Financial Assets And Liabilities [Line Items]    
Financial assets 233,949 173,409
Financial assets, at fair value 233,949 173,409
Amortized cost | Cash | Level 1    
Disclosure Of Financial Assets And Liabilities [Line Items]    
Financial assets 5,464 0
Financial assets, at fair value 5,464 0
Amortized cost | Trade and Other Receivables | Level 1    
Disclosure Of Financial Assets And Liabilities [Line Items]    
Financial assets 228,485 173,409
Financial assets, at fair value $ 228,485 $ 173,409