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Summary of Maturity Analysis of Lease Payments (Detail)
$ in Thousands
Dec. 31, 2021
CAD ($)
Disclosure of finance lease and operating lease by lessee [Line Items]  
Undiscounted lease payments $ 260,048
Less than one year [member]  
Disclosure of finance lease and operating lease by lessee [Line Items]  
Undiscounted lease payments 198,188
One to five years [member]  
Disclosure of finance lease and operating lease by lessee [Line Items]  
Undiscounted lease payments $ 61,860