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Critical Accounting Judgements and Key Sources of Estimation Uncertainty - Additional Information (Details)
 12 Months Ended
Jun. 30, 2025
USD ($)
Jun. 30, 2025
AUD ($)
Jun. 30, 2024
USD ($)
Jun. 30, 2023
USD ($)
Critical Accounting Judgements And Key Sources Of Estimation Uncertainty [Line Items]        
Research and development expense $ 126,832,000   $ 176,326,000 $ 128,828,000
Percentage of cash amount equal to eligible research and development expenditures 43.50% 43.50%    
Research and development tax incentive credit receivable $ 7,187,000   10,398,000 5,926,000
Research and development tax incentive description The R&D tax incentive is considered an income tax offset which will be offset against the Group’s tax obligation if and when the Group returns to a net tax payable position. In addition, whilst the Group is currently eligible to receive cash payments under the scheme since its consolidated revenue is currently below A$20 million, if and when the Group generates revenue in excess of A$20 million the R&D tax incentive will become non‑refundable and can only be offset against any future income tax payable by the Group. The R&D tax incentive is considered an income tax offset which will be offset against the Group’s tax obligation if and when the Group returns to a net tax payable position. In addition, whilst the Group is currently eligible to receive cash payments under the scheme since its consolidated revenue is currently below A$20 million, if and when the Group generates revenue in excess of A$20 million the R&D tax incentive will become non‑refundable and can only be offset against any future income tax payable by the Group.    
Revenue $ 25,000   125,000 108,000
Research and Development Tax Incentive Scheme | Top of Range        
Critical Accounting Judgements And Key Sources Of Estimation Uncertainty [Line Items]        
Revenue   $ 20,000,000    
Research and Development Tax Incentive Scheme | Bottom of Range | Non Refundable        
Critical Accounting Judgements And Key Sources Of Estimation Uncertainty [Line Items]        
Revenue   $ 20,000,000    
Development Cost Capitalized        
Critical Accounting Judgements And Key Sources Of Estimation Uncertainty [Line Items]        
Research and development expense $ 0   $ 0 $ 0