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Financial instruments and risk management - Interest rate risk - Narrative (Details)
Jun. 30, 2024
Jun. 30, 2023
Disclosure of detailed information about financial instruments [line items]    
Borrowings percentage 100.00% 100.00%
Fixed rate    
Disclosure of detailed information about financial instruments [line items]    
Borrowings percentage 77.00% 77.00%
Minimum | Fixed rate    
Disclosure of detailed information about financial instruments [line items]    
Borrowings percentage 40.00%  
Maximum | Fixed rate    
Disclosure of detailed information about financial instruments [line items]    
Borrowings percentage 90.00%