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Fair Value Disclosure for Non-financial Assets (Details) - CAD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Disclosure of fair value measurement of assets [line items]    
Assets $ 475,477 $ 509,966
Recurring fair value measurement | Investment property. | Level 1    
Disclosure of fair value measurement of assets [line items]    
Assets 0 0
Recurring fair value measurement | Investment property. | Level 2    
Disclosure of fair value measurement of assets [line items]    
Assets 0 0
Recurring fair value measurement | Investment property. | Level 3    
Disclosure of fair value measurement of assets [line items]    
Assets $ 31,850 $ 34,430