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Revenue - Additional Information (Detail) - Licensing Agreement [Member] $ in Thousands, $ in Millions | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2024 USD ($) | Mar. 31, 2021 USD ($) | Jun. 30, 2025 AUD ($) | Jun. 30, 2024 AUD ($) | Jun. 30, 2023 AUD ($) | Jun. 30, 2021 USD ($) | Jun. 30, 2025 USD ($)
Statement 1 [Line Items] |  |  |  |  |  |  |
Revenue recognized of consideration received from customers during the period |  |  | $ 0 |  |  |  |
Oasmia [Member] |  |  |  |  |  |  |
Statement 1 [Line Items] |  |  |  |  |  |  |
Upfront payment received |  |  |  |  |  | $ 4.0 |
Revenue recognized out of consideration received from customers during the period |  |  | 0 | $ 0 | $ 0 |  |
Simcere Pharmaceutical Group Limited [Member] |  |  |  |  |  |  |
Statement 1 [Line Items] |  |  |  |  |  |  |
Upfront payment received |  | $ 11.0 |  |  |  |  |
Upfront payment received in cash |  | 7.0 |  |  |  |  |
Upfront payment received in shares |  | $ 4.0 |  |  |  |  |
Premium on investment percentage |  | 20.00% |  |  |  |  |
Revenue recognized out of consideration received from customers during the period |  |  | 0 | 0 | 0 |  |
Oasmia And Simcere Pharmaceutical Group [Member] |  |  |  |  |  |  |
Statement 1 [Line Items] |  |  |  |  |  |  |
Revenue recognized of consideration received from customers during the period |  |  |  | 2,300 |  |  |
Sovargen Co Ltd [Member] |  |  |  |  |  |  |
Statement 1 [Line Items] |  |  |  |  |  |  |
Upfront payment received | $ 1.5 |  |  |  |  |  |
Revenue recognized out of consideration received from customers during the period |  |  | $ 0 | $ 0 | $ 0 |  |
Commercial Milestone [Member] | Oasmia [Member] |  |  |  |  |  |  |
Statement 1 [Line Items] |  |  |  |  |  |  |
Contingent milestone payment receivable |  |  |  |  |  | $ 42.0 |
Commercial Milestone [Member] | Simcere Pharmaceutical Group Limited [Member] |  |  |  |  |  |  |
Statement 1 [Line Items] |  |  |  |  |  |  |
Contingent milestone payment receivable |  | $ 281.0 |  |  |  |  |
Commercial Milestone [Member] | Sovargen Co Ltd [Member] |  |  |  |  |  |  |
Statement 1 [Line Items] |  |  |  |  |  |  |
Contingent milestone payment receivable |  |  |  |  |  |  | $ 19.0

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- Definition Contingent milestone payment receivable. + References No definition available. + Details
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- Definition Premium on investment percentage. + References No definition available. + Details
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- Definition Revenue recognized of consideration received from customers during the period. + References No definition available. + Details
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- Definition Revenue recognized out of consideration received from customers during the period. + References No definition available. + Details
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- Definition Upfront payment received. + References No definition available. + Details
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- Definition Upfront payment received in cash. + References No definition available. + Details
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- Definition Upfront payment received in shares. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
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- Details
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Namespace Prefix: |
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Period Type: |

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- Details
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Period Type: |

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- Details
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Period Type: |

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- Details
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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Balance Type: |
Period Type: |