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Segmented Information - Summary Of Detailed Information About Geographical Areas (Parenthetical) (Detail) - CAD ($)
$ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Mar. 31, 2020
Jun. 30, 2022
Jun. 30, 2021
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Disclosure of geographical areas [line items]                
Revenue From Government Grants $ 0 $ 6,400   $ 0 $ 10,500 $ 16,400 $ 19,600 $ 0
Energy Infrastructure [Member]                
Disclosure of geographical areas [line items]                
Amounts reclassified between segments     $ 11,717         $ 43,594