v3.26.1
Financial risk management - Schedule of Deposits Held which Derive Interest Revenue Together with the Maximum and Minimum Interest Rates Being Earned (Details) - Interest rate risk
$ in Thousands, $ in Thousands
 12 Months Ended
Jun. 30, 2026
USD ($)
Jun. 30, 2026
AUD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2025
AUD ($)
Disclosure of Financial Risk Management [Line Items]        
Effect on profit from change in tax rate 10.00% 10.00% 10.00% 10.00%
USD        
Disclosure of Financial Risk Management [Line Items]        
Funds invested $ 70,300   $ 117,902  
Effect on profit from change in interest rate increase or decrease 10.00% 10.00% 10.00% 10.00%
Rate increase on funds invested $ 216   $ 493  
Rate decrease on funds invested $ (216)   $ (493)  
AUD        
Disclosure of Financial Risk Management [Line Items]        
Funds invested   $ 1,395   $ 49,235
Effect on profit from change in interest rate increase or decrease 10.00% 10.00% 10.00% 10.00%
Rate increase on funds invested   $ 6   $ 185
Rate decrease on funds invested   $ (6)   $ (185)
Low | USD        
Disclosure of Financial Risk Management [Line Items]        
Funds invested percentage 1.21% 1.21% 4.18% 4.18%
Rate increase 1.33% 1.33% 4.60% 4.60%
Rate decrease 1.09% 1.09% 3.76% 3.76%
Low | AUD        
Disclosure of Financial Risk Management [Line Items]        
Funds invested percentage 3.85% 3.85% 3.35% 3.35%
Rate increase 4.24% 4.24% 3.69% 3.69%
Rate decrease 3.47% 3.47% 3.02% 3.02%
High | USD        
Disclosure of Financial Risk Management [Line Items]        
Funds invested percentage 3.62% 3.62% 4.18% 4.18%
Rate increase 3.98% 3.98% 4.60% 4.60%
Rate decrease 3.26% 3.26% 3.76% 3.76%
High | AUD        
Disclosure of Financial Risk Management [Line Items]        
Funds invested percentage 4.93% 4.93% 4.21% 4.21%
Rate increase 5.42% 5.42% 4.63% 4.63%
Rate decrease 4.44% 4.44% 3.79% 3.79%