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Share-Based Payments - Model Inputs for STI Performance Rights Granted (Parenthetical) (Detail) | 12 Months Ended
--- | ---
Jun. 30, 2025 shares | Jun. 30, 2024 shares | Jun. 30, 2023 shares
Disclosure of other equity instruments [line items] |  |  |
Granted during the fiscal year Number | 0 | 0 |
Short term incentives performance rights [member] |  |  |
Disclosure of other equity instruments [line items] |  |  |
Granted during the fiscal year Number |  | 0 | 0
Equity incentive plan [member] |  |  |
Disclosure of other equity instruments [line items] |  |  |
Outstanding options |  | 0 | 0
Granted during the fiscal year Number | 0 | 0 | 0
Equity incentive plan [member] | Short term incentives performance rights [member] | Vesting Period One [Member] |  |  |
Disclosure of other equity instruments [line items] |  |  |
Number of other equity instruments due to vest in share based payment arrangement |  | 3,147,952 | 2,700,000
Equity incentive plan [member] | Short term incentives performance rights [member] | Vesting Period Two [Member] |  |  |
Disclosure of other equity instruments [line items] |  |  |
Number of other equity instruments due to vest in share based payment arrangement |  | 3,147,952 | 2,700,000
Equity incentive plan [member] | Short term incentives performance rights [member] | Vesting Period Three [Member] |  |  |
Disclosure of other equity instruments [line items] |  |  |
Number of other equity instruments due to vest in share based payment arrangement |  | 447,952 |

X
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