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Non-current liabilities - Contingent consideration - Additional Information (Detail) - Milestone | 12 Months Ended |
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2017
Disclosure Of Other Non Current Liabilities [line items] |  |
Milestone payment discount rate | 35.00% |
Glioblast Pty Ltd [member] |  |
Disclosure Of Other Non Current Liabilities [line items] |  |
Percentage of equity interests acquired |  | 100.00%
Number of contingent milestone payments | 4 |
Genentech agreement [member] |  |
Disclosure Of Other Non Current Liabilities [line items] |  |
Number of contingent milestone payments | 1 |

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- Definition The percentage of voting equity interests acquired in a business combination. [Refer: Business combinations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2019-01-01 -Paragraph B64 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2019-en-r&anchor=para_B64_c&doctype=Appendix&subtype=B -URIDate 2019-03-27 + Details
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- Definition Disclosure Of Other Non Current Liabilities [line items] + References No definition available. + Details
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- Definition Number of contingent milestone payments. + References No definition available. + Details
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- Details
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- Details
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