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Interests in subsidiaries (Details) | 12 Months Ended
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Jun. 30, 2024 | Jun. 30, 2023
Iris Energy Custodian Pty Ltd |  |
List of Subsidiary Companies [Abstract] |  |
Name of subsidiary | Iris Energy Custodian Pty Ltd |
Country of incorporation of subsidiary | Australia |
Proportion of ownership interest in subsidiary | 100.00% | 100.00%
Iris Energy Holdings Pty Ltd. |  |
List of Subsidiary Companies [Abstract] |  |
Name of subsidiary | Iris Energy Holdings Pty Ltd |
Country of incorporation of subsidiary | Australia |
Proportion of ownership interest in subsidiary | 100.00% | 100.00%
SA 1 Holdings Pty Ltd |  |
List of Subsidiary Companies [Abstract] |  |
Name of subsidiary | SA 1 Holdings Pty Ltd |
Country of incorporation of subsidiary | Australia |
Proportion of ownership interest in subsidiary | 100.00% | 100.00%
SA 2 Holdings Pty Ltd |  |
List of Subsidiary Companies [Abstract] |  |
Name of subsidiary | SA 2 Holdings Pty Ltd |
Country of incorporation of subsidiary | Australia |
Proportion of ownership interest in subsidiary | 100.00% | 100.00%
TAS 1 Holdings Pty Ltd |  |
List of Subsidiary Companies [Abstract] |  |
Name of subsidiary | TAS 1 Holdings Pty Ltd |
Country of incorporation of subsidiary | Australia |
Proportion of ownership interest in subsidiary | 100.00% | 100.00%
Podtech Data Centers Inc. |  |
List of Subsidiary Companies [Abstract] |  |
Name of subsidiary | Podtech Data Centers Inc. |
Country of incorporation of subsidiary | Canada |
Proportion of ownership interest in subsidiary | 100.00% | 100.00%
IE CA Compute Ltd. |  |
List of Subsidiary Companies [Abstract] |  |
Name of subsidiary | IE CA Compute Ltd. |
Country of incorporation of subsidiary | Canada |
Proportion of ownership interest in subsidiary | 100.00% | 0.00%
IE CA Leasing Ltd. |  |
List of Subsidiary Companies [Abstract] |  |
Name of subsidiary | IE CA Leasing Ltd. |
Country of incorporation of subsidiary | Canada |
Proportion of ownership interest in subsidiary | 100.00% | 0.00%
IE CA 1 Holdings Ltd. |  |
List of Subsidiary Companies [Abstract] |  |
Name of subsidiary | IE CA 1 Holdings Ltd. |
Country of incorporation of subsidiary | Canada |
Proportion of ownership interest in subsidiary | 100.00% | 100.00%
IE CA 2 Holdings Ltd. [Member] |  |
List of Subsidiary Companies [Abstract] |  |
Name of subsidiary | IE CA 2 Holdings Ltd. |
Country of incorporation of subsidiary | Canada |
Proportion of ownership interest in subsidiary | 100.00% | 100.00%
IE CA 5 Holdings Ltd. |  |
List of Subsidiary Companies [Abstract] |  |
Name of subsidiary | IE CA 5 Holdings Ltd. |
Country of incorporation of subsidiary | Canada |
Proportion of ownership interest in subsidiary | 100.00% | 100.00%
IE CA Development Holdings Ltd. |  |
List of Subsidiary Companies [Abstract] |  |
Name of subsidiary | IE CA Development Holdings Ltd. |
Country of incorporation of subsidiary | Canada |
Proportion of ownership interest in subsidiary | 100.00% | 100.00%
IE CA Development Holdings 2 Ltd. |  |
List of Subsidiary Companies [Abstract] |  |
Name of subsidiary | IE CA Development Holdings 2 Ltd. |
Country of incorporation of subsidiary | Canada |
Proportion of ownership interest in subsidiary | 100.00% | 100.00%
IE CA Development Holdings 3 Ltd. |  |
List of Subsidiary Companies [Abstract] |  |
Name of subsidiary | IE CA Development Holdings 3 Ltd. |
Country of incorporation of subsidiary | Canada |
Proportion of ownership interest in subsidiary | 100.00% | 100.00%
IE CA Development Holdings 4 Ltd. |  |
List of Subsidiary Companies [Abstract] |  |
Name of subsidiary | IE CA Development Holdings 4 Ltd. |
Country of incorporation of subsidiary | Canada |
Proportion of ownership interest in subsidiary | 100.00% | 100.00%
IE CA Development Holdings 5 Ltd. |  |
List of Subsidiary Companies [Abstract] |  |
Name of subsidiary | IE CA Development Holdings 5 Ltd. |
Country of incorporation of subsidiary | Canada |
Proportion of ownership interest in subsidiary | 100.00% | 100.00%
IE CA Development Holdings 7 Ltd. |  |
List of Subsidiary Companies [Abstract] |  |
Name of subsidiary | IE CA Development Holdings 7 Ltd. |
Country of incorporation of subsidiary | Canada |
Proportion of ownership interest in subsidiary | 100.00% | 100.00%
IE US 1, Inc. |  |
List of Subsidiary Companies [Abstract] |  |
Name of subsidiary | IE US 1, Inc. |
Country of incorporation of subsidiary | United States of America |
Proportion of ownership interest in subsidiary | 100.00% | 100.00%
IE US Holdings Inc. |  |
List of Subsidiary Companies [Abstract] |  |
Name of subsidiary | IE US Holdings Inc. |
Country of incorporation of subsidiary | United States of America |
Proportion of ownership interest in subsidiary | 100.00% | 100.00%
IE US Development Holdings 1 Inc. |  |
List of Subsidiary Companies [Abstract] |  |
Name of subsidiary | IE US Development Holdings 1 Inc. |
Country of incorporation of subsidiary | United States of America |
Proportion of ownership interest in subsidiary | 100.00% | 100.00%
IE US Development Holdings 3 Inc. |  |
List of Subsidiary Companies [Abstract] |  |
Name of subsidiary | IE US Development Holdings 3 Inc. |
Country of incorporation of subsidiary | United States of America |
Proportion of ownership interest in subsidiary | 100.00% | 100.00%
IE US Development Holdings 4 Inc. |  |
List of Subsidiary Companies [Abstract] |  |
Name of subsidiary | IE US Development Holdings 4 Inc. |
Country of incorporation of subsidiary | United States of America |
Proportion of ownership interest in subsidiary | 100.00% | 100.00%
IE US Development Holdings 5 Inc. |  |
List of Subsidiary Companies [Abstract] |  |
Name of subsidiary | IE US Development Holdings 5 Inc. |
Country of incorporation of subsidiary | United States of America |
Proportion of ownership interest in subsidiary | 100.00% | 100.00%
IE US Development Holdings 6 Inc. |  |
List of Subsidiary Companies [Abstract] |  |
Name of subsidiary | IE US Development Holdings 6 Inc. |
Country of incorporation of subsidiary | United States of America |
Proportion of ownership interest in subsidiary | 100.00% | 0.00%
IE US Hardware 1 Inc. |  |
List of Subsidiary Companies [Abstract] |  |
Name of subsidiary | IE US Hardware 1 Inc. |
Country of incorporation of subsidiary | United States of America |
Proportion of ownership interest in subsidiary | 100.00% | 100.00%
IE US Hardware 3 Inc. |  |
List of Subsidiary Companies [Abstract] |  |
Name of subsidiary | IE US Hardware 3 Inc. |
Country of incorporation of subsidiary | United States of America |
Proportion of ownership interest in subsidiary | 100.00% | 100.00%
IE US Hardware 4 Inc. |  |
List of Subsidiary Companies [Abstract] |  |
Name of subsidiary | IE US Hardware 4 Inc. |
Country of incorporation of subsidiary | United States of America |
Proportion of ownership interest in subsidiary | 100.00% | 100.00%
IE US Operations Inc. |  |
List of Subsidiary Companies [Abstract] |  |
Name of subsidiary | IE US Operations Inc. |
Country of incorporation of subsidiary | United States of America |
Proportion of ownership interest in subsidiary | 100.00% | 100.00%

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