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v3.25.1

Financial instruments - Price Risk (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Jun. 30, 2024 | Jun. 30, 2023
Price Risk |  |
Disclosure of credit risk exposure [abstract] |  |
Bitcoin held | $ 0 | $ 0

X
- References No definition available. + Details
Name: | ifrs-full_DisclosureOfCreditRiskExposureAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of bitcoin held during the period. + References No definition available. + Details
Name: | iren_BitcoinsHeld
Namespace Prefix: | iren_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | ifrs-full_TypesOfRisksAxis=iren_PriceRiskMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |