v3.26.1
Supplemental Cash Flow Information - Schedule of Reconciliation of the Liabilities Arising from Financing Activities (Details) - CAD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Schedule of Reconciliation of the Liabilities Arising from Financing Activities [Line Items]        
Beginning balance     $ 1,152,462  
Gain on repurchase of debt $ 6,896 $ 6,896
Interest paid     (95,686) (103,833)
Impact of foreign exchange 4,290 (10,918) 6,038 (11,177)
Ending balance 1,051,429   1,051,429  
Indebtedness [Member]        
Schedule of Reconciliation of the Liabilities Arising from Financing Activities [Line Items]        
Beginning balance     3,493,607 3,096,615
Cash inflows     230,286 340,000
Cash outflows     (4,501)
Non-cash addition    
Non-cash transfer      
Amortisation of deferred financing costs, prepayment options, warrants and loss on repayment     5,348 2,116
Gain on repurchase of debt       (6,896)
Interest paid    
Interest accrued     28,257 9,493
Non-cash transfer from deferred charges to indebtedness of debt issue costs and warrants     (58,145) (85,943)
Impact of foreign exchange     94,814 (164,114)
Ending balance 3,794,167 3,186,770 3,794,167 3,186,770
Satellite performance incentive payments [Member]        
Schedule of Reconciliation of the Liabilities Arising from Financing Activities [Line Items]        
Beginning balance     12,355 15,060
Cash inflows    
Cash outflows     (1,808) (1,204)
Non-cash addition    
Non-cash transfer      
Amortisation of deferred financing costs, prepayment options, warrants and loss on repayment    
Gain on repurchase of debt      
Interest paid    
Interest accrued    
Non-cash transfer from deferred charges to indebtedness of debt issue costs and warrants    
Impact of foreign exchange     357 (789)
Ending balance 10,904 13,067 10,904 13,067
Lease liabilities [Member]        
Schedule of Reconciliation of the Liabilities Arising from Financing Activities [Line Items]        
Beginning balance     40,109 33,375
Cash inflows    
Cash outflows     (1,394) (1,552)
Non-cash addition     6,604 9,112
Non-cash transfer     (29)  
Amortisation of deferred financing costs, prepayment options, warrants and loss on repayment    
Gain on repurchase of debt      
Interest paid     (1,027) (1,035)
Interest accrued     1,101 1,035
Non-cash transfer from deferred charges to indebtedness of debt issue costs and warrants    
Impact of foreign exchange     104 (401)
Ending balance $ 45,468 $ 40,534 $ 45,468 $ 40,534