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Financial risk management and financial instruments - Credit Risk (Details) - customer | 12 Months Ended
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Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2022
Financial risk management and financial instruments |  |  |
Loss given default for unsecured financial assets | 50.00% | 50.00% |
Loss given default for secured financial assets | 40.00% | 40.00% |
Number of customers representing more than ten percent of turnover | 0 | 0 | 0
Number of customers representing more than ten percent of trade receivables | 0 | 0 | 0

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