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Exceptional Items - Summary of Gain on Disposal (Parenthetical) (Detail) | 12 Months Ended
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Jun. 30, 2024 USDtonne
Top of range [member] | Twelve Months [Member] |
Schedule Of Gain On Disposal [Line Items] |
Period of completion | 12 months
Month post completion | 12 months
Top of range [member] | Twenty Four Months [Member] |
Schedule Of Gain On Disposal [Line Items] |
Period of completion | 12 months
Month post completion | 24 months
Top of range [member] | Thirty Six Months [Member] |
Schedule Of Gain On Disposal [Line Items] |
Period of completion | 12 months
Month post completion | 36 months
Blackwater and Daunia gain on disposal [member] |
Schedule Of Gain On Disposal [Line Items] |
Percentage of contingent payment on revenue share | 35.00%
Blackwater and Daunia gain on disposal [member] | Top of range [member] | Twelve Months [Member] |
Schedule Of Gain On Disposal [Line Items] |
Average realised prices achieved by the assets | 159
Blackwater and Daunia gain on disposal [member] | Top of range [member] | Twenty Four Months [Member] |
Schedule Of Gain On Disposal [Line Items] |
Average realised prices achieved by the assets | 134
Blackwater and Daunia gain on disposal [member] | Top of range [member] | Thirty Six Months [Member] |
Schedule Of Gain On Disposal [Line Items] |
Average realised prices achieved by the assets | 134

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