Summary of significant accounting policies (Details 2) |
12 Months Ended |
|---|---|
Jun. 30, 2025 | |
| Buildings And Facilities [Member] | |
| Statement [Line Items] | |
| Useful life of property, plant and equipment | Between 5 and 50 years |
| Machinery and Equipment [Member] | |
| Statement [Line Items] | |
| Useful life of property, plant and equipment | Between 3 and 21 years |
| Other PPE [Member] | |
| Statement [Line Items] | |
| Useful life of property, plant and equipment | Between 3 and 10 years |