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Restructuring Provision - Rollforward of Restructuring Provision (Details) - CAD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Reconciliation of changes in restructuring provision [Abstract]    
Opening balance $ 0 $ 557
Additions 3,131 1,011
Payments 1,946 1,568
Ending balance $ 1,185 $ 0