Financial Instruments and Risk Management, Credit risk (Details) - Credit risk [member] - AUD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Credit risk [Abstract] | ||
| Maximum exposure to credit risk | $ 100.0 | $ 108.3 |
| Cash and cash equivalents and other long-term fixed deposits | $ 72.5 | $ 90.8 |
| Impairments expected credit loss period | 12 months |