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Key Management Personnel Disclosures - Summary of Number of Performance Rights Over Ordinary Shares in Parent Entity (Detail) - Performance rights [member]
 12 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2023
Disclosure of key management personnel compensation [line items]      
Balance at start of the fiscal year Number 12,538,581 9,993,081 13,339,621
Granted 9,500,000 2,112,167 1,624,499
Exercised (6,816,947) (500,000) (4,606,173)
Other changes (1,343,856) 0 (364,866)
Balance at end of the end fiscal year Number 13,877,778 12,538,581 9,993,081
Vested and exercisable 0 2,931,517 0
Unvested 13,877,778 8,673,731 9,993,081
Previously Reported [Member]      
Disclosure of key management personnel compensation [line items]      
Balance at start of the fiscal year Number 11,605,248    
Balance at end of the end fiscal year Number   11,605,248  
Dr Russell Howard [member]      
Disclosure of key management personnel compensation [line items]      
Balance at start of the fiscal year Number 404,770 226,414 339,621
Granted 0 178,356 0
Exercised (304,770) 0 (113,207)
Other changes 0 0 0
Balance at end of the end fiscal year Number 100,000 404,770 226,414
Vested and exercisable 0 141,563 0
Unvested 100,000 263,207 226,414
Mr Pete Meyers [member]      
Disclosure of key management personnel compensation [line items]      
Balance at start of the fiscal year Number 1,166,667 1,666,667 1,000,000
Granted 0 0 1,166,667
Exercised (388,889) (500,000) (500,000)
Other changes 0 0 0
Balance at end of the end fiscal year Number 777,778 1,166,667 1,666,667
Vested and exercisable 0 0 0
Unvested 777,778 1,166,667 1,666,667
Mr Marc Voigt [member]      
Disclosure of key management personnel compensation [line items]      
Balance at start of the fiscal year Number 3,600,000 3,600,000 6,000,000
Granted 3,600,000 0 0
Exercised (2,400,000) 0 (2,400,000)
Other changes 0 0 0
Balance at end of the end fiscal year Number 4,800,000 3,600,000 3,600,000
Vested and exercisable 0 1,200,000 0
Unvested 4,800,000 2,400,000 3,600,000
Dr Frédéric Triebel [member]      
Disclosure of key management personnel compensation [line items]      
Balance at start of the fiscal year Number 2,700,000 2,700,000 3,600,000
Granted 2,700,000 0 0
Exercised (1,800,000) 0 (900,000)
Other changes 0 0 0
Balance at end of the end fiscal year Number 3,600,000 2,700,000 2,700,000
Vested and exercisable 0 900,000 0
Unvested 3,600,000 1,800,000 2,700,000
Ms Anne Anderson [Member]      
Disclosure of key management personnel compensation [line items]      
Balance at start of the fiscal year Number 0 0  
Granted 0 0  
Exercised 0 0  
Other changes 0 0  
Balance at end of the end fiscal year Number 0 0 0
Vested and exercisable 0 0  
Unvested 0 0  
Ms Lis Boyce [Member]      
Disclosure of key management personnel compensation [line items]      
Balance at start of the fiscal year Number 589,955 0 0
Granted 0 589,955 0
Exercised (256,621) 0 0
Other changes 0 0 0
Balance at end of the end fiscal year Number 333,334 589,955 0
Vested and exercisable 0 89,954 0
Unvested 333,334 500,001 0
Ms Deanne Miller [member]      
Disclosure of key management personnel compensation [line items]      
Balance at start of the fiscal year Number 1,800,000 1,800,000 2,400,000
Granted 1,800,000 0 0
Exercised (1,200,000) 0 (600,000)
Other changes 0 0 0
Balance at end of the end fiscal year Number 2,400,000 1,800,000 1,800,000
Vested and exercisable 0 600,000 0
Unvested 2,400,000 1,200,000 1,800,000
Dr Florian Vogl [Member]      
Disclosure of key management personnel compensation [line items]      
Balance at start of the fiscal year Number 1,343,856 0  
Granted 0 1,343,856  
Exercised 0 0  
Other changes (1,343,856) 0  
Balance at end of the end fiscal year Number 0 1,343,856 0
Vested and exercisable 0 0  
Unvested 0 1,343,856  
Ms Lucy Turnbull A O [member]      
Disclosure of key management personnel compensation [line items]      
Balance at start of the fiscal year Number   0 0
Granted     457,832
Exercised     (92,966)
Other changes [1]     (364,866)
Balance at end of the end fiscal year Number     0
Vested and exercisable     0
Unvested     0
Mr Christian Mueller [Member]      
Disclosure of key management personnel compensation [line items]      
Balance at start of the fiscal year Number [2] 933,333    
Granted [2] 1,400,000    
Exercised [2] (466,667)    
Other changes 0    
Balance at end of the end fiscal year Number 1,866,666 933,333 [2]  
Vested and exercisable 0    
Unvested 1,866,666    
[1] The change during the year represents derecognition due to the cessation of the director’s position.
[2] Performance rights held before being appointed as key management personnel