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Current and Non-Current Liabilities - Financial Liabilities - DFA - Additional Information (Details) - USD ($) $ in Millions |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | ---
Aug. 19, 2025 | Aug. 31, 2022 | Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2023
Disclosure Of Reclassifications Or Changes In Presentation [Line Items] |  |  |  |  |
Percentage of net sales |  |  | 7.00% |  |
Launch Tx |  |  |  |  |
Disclosure Of Reclassifications Or Changes In Presentation [Line Items] |  |  |  |  |
Committed amount received in cash |  |  |  | $ 120.0 | $ 50.0
Development Funding Agreement |  |  |  |  |
Disclosure Of Reclassifications Or Changes In Presentation [Line Items] |  |  |  |  |
Percentage of net sales |  |  | 7.00% |  |
Amortized cost of funds invested |  |  | $ 170.0 |  |
Original interest rate |  |  | 23.00% |  |
Development Funding Agreement | Events after Reporting Period |  |  |  |  |
Disclosure Of Reclassifications Or Changes In Presentation [Line Items] |  |  |  |  |
Cash payment to DFA | $ 20.0 |  |  |  |
Percentage of share capital issued | 9.99% |  |  |  |
Number of ordinary shares issued | 136,661,003 |  |  |  |
Development Funding Agreement | Change of Control |  |  |  |  |
Disclosure Of Reclassifications Or Changes In Presentation [Line Items] |  |  |  |  |
Repayment due to termination |  |  | $ 0.0 |  |
Percentage of repayment due to termination |  |  | 0.00% |  |
Development Funding Agreement | Disagreement with DFA Investors |  |  |  |  |
Disclosure Of Reclassifications Or Changes In Presentation [Line Items] |  |  |  |  |
Repayment due to termination |  |  | $ 229.5 |  |
Percentage of repayment due to termination |  |  | 135.00% |  |
Development Funding Agreement | Iinability to Fund Development Costs |  |  |  |  |
Disclosure Of Reclassifications Or Changes In Presentation [Line Items] |  |  |  |  |
Repayment due to termination |  |  | $ 255.0 |  |
Percentage of repayment due to termination |  |  | 150.00% |  |
Development Funding Agreement | Safety |  |  |  |  |
Disclosure Of Reclassifications Or Changes In Presentation [Line Items] |  |  |  |  |
Repayment due to termination |  |  | $ 467.5 |  |
Percentage of repayment due to termination |  |  | 275.00% |  |
Development Funding Agreement | Bankruptcy and Other Material Breaches |  |  |  |  |
Disclosure Of Reclassifications Or Changes In Presentation [Line Items] |  |  |  |  |
Repayment due to termination |  |  | $ 680.0 |  |
Percentage of repayment due to termination |  |  | 400.00% |  |
Development Funding Agreement | Launch Tx |  |  |  |  |
Disclosure Of Reclassifications Or Changes In Presentation [Line Items] |  |  |  |  |
Additional funding amount under investor option |  | $ 50.0 |  |  |
Development Funding Agreement | Bottom of Range | Launch Tx |  |  |  |  |
Disclosure Of Reclassifications Or Changes In Presentation [Line Items] |  |  |  |  |
Amount committed by investor |  | 120.0 |  |  |
Development Funding Agreement | Top of Range | Launch Tx |  |  |  |  |
Disclosure Of Reclassifications Or Changes In Presentation [Line Items] |  |  |  |  |
Amount committed by investor |  | 170.0 |  |  |
Amended and Restated Development Funding Agreement | Bottom of Range | Launch Tx |  |  |  |  |
Disclosure Of Reclassifications Or Changes In Presentation [Line Items] |  |  |  |  |
Amount committed by investor |  | $ 50.0 |  |  |

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