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Share-Based Payments - Summaries of All STI and LTI Performance Rights Granted (Detail) - Share consolidation adjustment [member] | 12 Months Ended
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Jun. 30, 2025 shares $ / shares | Jun. 30, 2024 shares $ / shares | Jun. 30, 2023 shares $ / shares
Disclosure of other equity instruments [line items] |  |  |  |  |  |
Balance at start of the fiscal year Number | 2,161,392 | [1] | 1,893,081 | [1] | 1,339,621 |
Granted during the fiscal year Number | 0 |  | 768,311 |  | 1,624,499 |
Exercised during the fiscal year Number | (950,280) |  | (500,000) |  | (706,173) |
Balance at end of the end fiscal year Number | 1,211,112 |  | 2,161,392 | [1] | 1,893,081 | [1]
Vested and exercisable at end of the fiscal year Number | 0 |  | 231,517 |  | 0 |
Equity incentive plan [member] | Short term incentives and long term incentives performance rights [member] |  |  |  |  |  |
Disclosure of other equity instruments [line items] |  |  |  |  |  |
Balance at start of the fiscal year Number | 13,870,535 |  | 12,130,033 |  | 16,769,906 |
Granted during the fiscal year Number | 11,200,000 |  | 2,724,868 |  | 1,112,334 |
Exercised during the fiscal year Number | (6,827,005) |  | (984,366) |  | (5,752,207) |
Lapsed during the fiscal year Number | (2,006,466) |  | 0 |  | 0 |
Balance at end of the end fiscal year Number | 16,237,064 |  | 13,870,535 |  | 12,130,033 |
Vested and exercisable at end of the fiscal year Number | 834,250 |  | 3,256,167 |  | 0 |
Equity incentive plan [member] | Short term incentives and long term incentives performance rights [member] | October 3, 2019 [member] |  |  |  |  |  |
Disclosure of other equity instruments [line items] |  |  |  |  |  |
Fair value | $ / shares |  |  |  |  | $ 0.26 |
Balance at start of the fiscal year Number |  |  | 0 |  | 1,500,000 |
Granted during the fiscal year Number |  |  |  |  | 0 |
Exercised during the fiscal year Number |  |  |  |  | (1,500,000) |
Lapsed during the fiscal year Number |  |  |  |  | 0 |
Balance at end of the end fiscal year Number |  |  |  |  | 0 |
Vested and exercisable at end of the fiscal year Number |  |  |  |  | 0 |
Equity incentive plan [member] | Short term incentives and long term incentives performance rights [member] | November 1, 2019 [member] |  |  |  |  |  |
Disclosure of other equity instruments [line items] |  |  |  |  |  |
Fair value | $ / shares |  |  |  |  | $ 0.28 |
Balance at start of the fiscal year Number |  |  | 0 |  | 2,400,000 |
Granted during the fiscal year Number |  |  |  |  | 0 |
Exercised during the fiscal year Number |  |  |  |  | (2,400,000) |
Lapsed during the fiscal year Number |  |  |  |  | 0 |
Balance at end of the end fiscal year Number |  |  |  |  | 0 |
Vested and exercisable at end of the fiscal year Number |  |  |  |  | 0 |
Equity incentive plan [member] | Short term incentives and long term incentives performance rights [member] | January 2, 2020 [member] |  |  |  |  |  |
Disclosure of other equity instruments [line items] |  |  |  |  |  |
Fair value | $ / shares |  |  |  |  | $ 0.26 |
Balance at start of the fiscal year Number |  |  | 0 |  | 1,400,000 |
Granted during the fiscal year Number |  |  |  |  | 0 |
Exercised during the fiscal year Number |  |  |  |  | (1,400,000) |
Lapsed during the fiscal year Number |  |  |  |  | 0 |
Balance at end of the end fiscal year Number |  |  |  |  | 0 |
Vested and exercisable at end of the fiscal year Number |  |  |  |  | 0 |
Equity incentive plan [member] | Short term incentives and long term incentives performance rights [member] | October 2, 2020 [member] |  |  |  |  |  |
Disclosure of other equity instruments [line items] |  |  |  |  |  |
Fair value | $ / shares |  |  |  |  | $ 0.235 |
Balance at start of the fiscal year Number |  |  | 0 |  | 263,502 |
Granted during the fiscal year Number |  |  |  |  | 0 |
Exercised during the fiscal year Number |  |  |  |  | (263,502) |
Lapsed during the fiscal year Number |  |  |  |  | 0 |
Balance at end of the end fiscal year Number |  |  |  |  | 0 |
Vested and exercisable at end of the fiscal year Number |  |  |  |  | 0 |
Equity incentive plan [member] | Short term incentives and long term incentives performance rights [member] | October 1, 2021 [member] |  |  |  |  |  |
Disclosure of other equity instruments [line items] |  |  |  |  |  |
Fair value | $ / shares |  |  | $ 0.55 |  | $ 0.55 |
Balance at start of the fiscal year Number | 0 |  | 17,699 |  | 206,404 |
Granted during the fiscal year Number |  |  | 0 |  | 0 |
Exercised during the fiscal year Number |  |  | (17,699) |  | (188,705) |
Lapsed during the fiscal year Number |  |  | 0 |  | 0 |
Balance at end of the end fiscal year Number |  |  | 0 |  | 17,699 |
Vested and exercisable at end of the fiscal year Number |  |  | 0 |  | 0 |
Equity incentive plan [member] | Short term incentives and long term incentives performance rights [member] | November 26, 2021 [member] |  |  |  |  |  |
Disclosure of other equity instruments [line items] |  |  |  |  |  |
Fair value | $ / shares | $ 0.49 |  | $ 0.49 |  | $ 0.49 |
Balance at start of the fiscal year Number | 3,600,000 |  | 3,600,000 |  | 3,600,000 |
Granted during the fiscal year Number | 0 |  | 0 |  | 0 |
Exercised during the fiscal year Number | (2,400,000) |  | 0 |  | 0 |
Lapsed during the fiscal year Number | 0 |  | 0 |  | 0 |
Balance at end of the end fiscal year Number | 1,200,000 |  | 3,600,000 |  | 3,600,000 |
Vested and exercisable at end of the fiscal year Number | 0 |  | 1,200,000 |  | 0 |
Equity incentive plan [member] | Short term incentives and long term incentives performance rights [member] | November 26, 2021 [member] |  |  |  |  |  |
Disclosure of other equity instruments [line items] |  |  |  |  |  |
Fair value | $ / shares | $ 0.49 |  | $ 0.49 |  | $ 0.49 |
Balance at start of the fiscal year Number | 4,500,000 |  | 4,500,000 |  | 4,500,000 |
Granted during the fiscal year Number | 0 |  | 0 |  | 0 |
Exercised during the fiscal year Number | (3,000,000) |  | 0 |  | 0 |
Lapsed during the fiscal year Number | 0 |  | 0 |  | 0 |
Balance at end of the end fiscal year Number | 1,500,000 |  | 4,500,000 |  | 4,500,000 |
Vested and exercisable at end of the fiscal year Number | 0 |  | 1,500,000 |  | 0 |
Equity incentive plan [member] | Short term incentives and long term incentives performance rights [member] | November 26, 2021 [member] |  |  |  |  |  |
Disclosure of other equity instruments [line items] |  |  |  |  |  |
Fair value | $ / shares | $ 0.49 |  | $ 0.49 |  | $ 0.49 |
Balance at start of the fiscal year Number | 1,933,333 |  | 2,900,000 |  | 2,900,000 |
Granted during the fiscal year Number | 0 |  | 0 |  | 0 |
Exercised during the fiscal year Number | (966,667) |  | (966,667) |  | 0 |
Lapsed during the fiscal year Number | 0 |  | 0 |  | 0 |
Balance at end of the end fiscal year Number | 966,666 |  | 1,933,333 |  | 2,900,000 |
Vested and exercisable at end of the fiscal year Number | 0 |  | 0 |  | 0 |
Equity incentive plan [member] | Short term incentives and long term incentives performance rights [member] | December 16, 2022 [member] |  |  |  |  |  |
Disclosure of other equity instruments [line items] |  |  |  |  |  |
Fair value | $ / shares | $ 0.33 |  | $ 0.33 |  | $ 0.33 |
Balance at start of the fiscal year Number | 1,112,334 |  | 1,112,334 |  | 0 |
Granted during the fiscal year Number | 0 |  | 0 |  | 1,112,334 |
Exercised during the fiscal year Number | 0 |  | 0 |  | 0 |
Lapsed during the fiscal year Number | 0 |  | 0 |  | 0 |
Balance at end of the end fiscal year Number | 1,112,334 |  | 1,112,334 |  | 1,112,334 |
Vested and exercisable at end of the fiscal year Number | 834,250 |  | 556,167 |  | 0 |
Equity incentive plan [member] | Short term incentives and long term incentives performance rights [member] | January 31, 2024 [member] |  |  |  |  |  |
Disclosure of other equity instruments [line items] |  |  |  |  |  |
Fair value | $ / shares | $ 0.35 |  | $ 0.35 |  |  |
Balance at start of the fiscal year Number | 1,343,856 |  | 0 |  |  |
Granted during the fiscal year Number | 0 |  | 1,343,856 |  |  |
Exercised during the fiscal year Number | 0 |  | 0 |  |  |
Lapsed during the fiscal year Number | (1,343,856) |  | 0 |  |  |
Balance at end of the end fiscal year Number | 0 |  | 1,343,856 |  | 0 |
Vested and exercisable at end of the fiscal year Number | 0 |  | 0 |  |  |
Equity incentive plan [member] | Short term incentives and long term incentives performance rights [member] | January 31, 2024 [member] |  |  |  |  |  |
Disclosure of other equity instruments [line items] |  |  |  |  |  |
Fair value | $ / shares | $ 0.35 |  | $ 0.35 |  |  |
Balance at start of the fiscal year Number | 1,381,012 |  | 0 |  |  |
Granted during the fiscal year Number | 0 |  | 1,381,012 |  |  |
Exercised during the fiscal year Number | (460,338) |  | 0 |  |  |
Lapsed during the fiscal year Number | (662,610) |  | 0 |  |  |
Balance at end of the end fiscal year Number | 258,064 |  | 1,381,012 |  | 0 |
Vested and exercisable at end of the fiscal year Number | 0 |  | 0 |  |  |
Equity incentive plan [member] | Short term incentives and long term incentives performance rights [member] | November 22, 2024 [member] |  |  |  |  |  |
Disclosure of other equity instruments [line items] |  |  |  |  |  |
Fair value | $ / shares | $ 0.305 |  |  |  |  |
Balance at start of the fiscal year Number | 0 |  |  |  |  |
Granted during the fiscal year Number | 2,700,000 |  |  |  |  |
Exercised during the fiscal year Number | 0 |  |  |  |  |
Lapsed during the fiscal year Number | 0 |  |  |  |  |
Balance at end of the end fiscal year Number | 2,700,000 |  | 0 |  |  |
Vested and exercisable at end of the fiscal year Number | 0 |  |  |  |  |
Equity incentive plan [member] | Short term incentives and long term incentives performance rights [member] | November 22, 2024 [member] |  |  |  |  |  |
Disclosure of other equity instruments [line items] |  |  |  |  |  |
Fair value | $ / shares | $ 0.305 |  |  |  |  |
Balance at start of the fiscal year Number | 0 |  |  |  |  |
Granted during the fiscal year Number | 3,600,000 |  |  |  |  |
Exercised during the fiscal year Number | 0 |  |  |  |  |
Lapsed during the fiscal year Number | 0 |  |  |  |  |
Balance at end of the end fiscal year Number | 3,600,000 |  | 0 |  |  |
Vested and exercisable at end of the fiscal year Number | 0 |  |  |  |  |
Equity incentive plan [member] | Short term incentives and long term incentives performance rights [member] | November 22, 2024 [member] |  |  |  |  |  |
Disclosure of other equity instruments [line items] |  |  |  |  |  |
Fair value | $ / shares | $ 0.305 |  |  |  |  |
Balance at start of the fiscal year Number | 0 |  |  |  |  |
Granted during the fiscal year Number | 3,200,000 |  |  |  |  |
Exercised during the fiscal year Number | 0 |  |  |  |  |
Lapsed during the fiscal year Number | 0 |  |  |  |  |
Balance at end of the end fiscal year Number | 3,200,000 |  | 0 |  |  |
Vested and exercisable at end of the fiscal year Number | 0 |  |  |  |  |
Equity incentive plan [member] | Short term incentives and long term incentives performance rights [member] | December 5, 2024 [member] |  |  |  |  |  |
Disclosure of other equity instruments [line items] |  |  |  |  |  |
Fair value | $ / shares | $ 0.31 |  |  |  |  |
Balance at start of the fiscal year Number | 0 |  |  |  |  |
Granted during the fiscal year Number | 1,700,000 |  |  |  |  |
Exercised during the fiscal year Number | 0 |  |  |  |  |
Lapsed during the fiscal year Number | 0 |  |  |  |  |
Balance at end of the end fiscal year Number | 1,700,000 |  | 0 |  |  |
Vested and exercisable at end of the fiscal year Number | 0 |  |  |  |  |
[1] | The weighted average share price on the exercising date during the financial year 2024 is $0.285.

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