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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
	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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Disclosure of financial risk management.

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