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Financial risk management - Schedule of Deposits Held which Derive Interest Revenue Together with the Maximum and Minimum Interest Rates Being Earned (Parenthetical) (Details) - Interest Rate Risk | 6 Months Ended | 12 Months Ended
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Dec. 31, 2023 | Jun. 30, 2023
USD |  |
Disclosure of Financial Risk Management [Line Items] |  |
Effect on profit from change in interest rate increase or decrease | 10.00% | 10.00%
AUD |  |
Disclosure of Financial Risk Management [Line Items] |  |
Effect on profit from change in interest rate increase or decrease | 10.00% | 10.00%

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