v3.26.1
Stock-based compensation - Narrative 2025 Omnibus Incentive Plan, LTIP and $75 Exercise price options (Details)
12 Months Ended
May 14, 2026
shares
Oct. 07, 2025
shares
Sep. 14, 2021
shares
Jun. 30, 2026
trading_day
tranche
$ / shares
shares
Jun. 30, 2025
shares
Jun. 30, 2024
shares
Aug. 18, 2021
$ / shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Granted (in shares)       0 0 0  
Fully dilutive common shares (in shares)       558,718,254      
2025 Omnibus Plan              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Aggregated common stock reserved for future issuance (in shares)       17,500,000      
2023 LTIP | Restricted stock units              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Number of tranches | tranche       3      
Number of time-based vesting tranches | tranche       2      
Number of performance-based vesting tranches | tranche       1      
2022 LTIP | Restricted stock units              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Number of tranches | tranche       2      
2022 LTIP | Restricted stock units | Minimum | Tranche one              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Award requisite service period       3 years      
2022 LTIP | Restricted stock units | Maximum | Tranche one              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Award requisite service period       4 years      
Employee share plans              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Vesting period       9 years 11 months      
75 USD exercise price long term options              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Number of tranches | tranche       4      
Contractual exercise period       12 years      
75 USD exercise price long term options | Entities controlled by executive directors Daniel and William Roberts              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Granted (in shares)     2,400,000        
Exercise price weighted average (in USD/AUD per share) | $ / shares             $ 75
75 USD exercise price long term options | Tranche one              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Options vested (in shares)   600,000          
Trading days (in days) | trading_day       20      
75 USD exercise price long term options | Tranche two              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Options vested (in shares) 600,000            
Trading days (in days) | trading_day       20      
75 USD exercise price long term options | Tranche three              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Trading days (in days) | trading_day       20      
Options expected to vest (in shares)       600,000      
Vesting requirement options price (in USD per share) | $ / shares       $ 71.76      
75 USD exercise price long term options | Tranche four              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Trading days (in days) | trading_day       20      
Options expected to vest (in shares)       600,000      
Vesting requirement options price (in USD per share) | $ / shares       $ 143.52