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Capital Disclosures -Summary of Reconciliation of Net Debt to EBITDA Ratio (Detail)
$ in Thousands
12 Months Ended
Dec. 31, 2021
CAD ($)
Dec. 31, 2020
CAD ($)
Mar. 31, 2022
CAD ($)
Mar. 31, 2021
CAD ($)
Dec. 31, 2019
CAD ($)
Dec. 31, 2018
CAD ($)
Disclosure of Reconciliation of Net debt to EBITDA ratio [Line Items]            
Long-term debt $ 331,422 $ 389,712        
Cash and cash equivalents (172,758) (95,676) $ (133,214) $ (110,642) $ (96,255) $ (326,864)
Net debt 158,664 294,036        
Earnings before finance costs and income taxes 55,097 118,052        
Depreciation and amortization 87,622 85,265        
EBITDA $ 142,719 $ 203,317        
Net debt to EBITDA ratio 0.11 0.45