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Non-financial assets and liabilities - Summary of Carrying Value of In Process Research and Development Acquired by Product (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Jun. 30, 2023 | Jun. 30, 2022
--- | --- | --- | ---
Disclosure Of Intangible Assets [Line Items] |  |  |
Carrying value of in process research and development | $ 576,564 | $ 577,183 | $ 578,652
In-process research and development acquired |  |  |
Disclosure Of Intangible Assets [Line Items] |  |  |
Carrying value of in process research and development | 427,779 | 427,779 | $ 427,779
In-process research and development acquired | Cardiovascular Products |  |  |
Disclosure Of Intangible Assets [Line Items] |  |  |
Carrying value of in process research and development | 254,351 | 254,351 |
In-process research and development acquired | Intravenous products for metabolic diseases and inflammatory/immunologic conditions |  |  |
Disclosure Of Intangible Assets [Line Items] |  |  |
Carrying value of in process research and development | 70,730 | 70,730 |
In-process research and development acquired | MSC Products |  |  |
Disclosure Of Intangible Assets [Line Items] |  |  |
Carrying value of in process research and development | $ 102,698 | $ 102,698 |

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