XML 79 R69.htm IDEA: XBRL DOCUMENT v3.25.3
Income taxes - Summary of Income taxes (Parenthetical) (Detail)
12 Months Ended
Jun. 30, 2025
Disclosure Of Income Tax Benefit [line items]  
Statutory tax rate 25.00%
Australia [member]  
Disclosure Of Income Tax Benefit [line items]  
Statutory tax rate 25.00%
US [member]  
Disclosure Of Income Tax Benefit [line items]  
Statutory tax rate 21.00%