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Property, plant and equipment - Reconciliations of Written Down Values (Details) - USD ($) $ in Thousands | 12 Months Ended
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Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2022
Reconciliations of Written Down Values of Property, Plant and Equipment [Abstract] |  |  |
Property, plant and equipment, beginning balance | $ 241,102 | $ 247,562 |
Additions | 255,365 | 254,669 |
Deconsolidation of subsidiaries |  | (90,054) |
Disposals | (46) | (39,052) |
Exchange differences | (4,541) | (9,779) |
Impairment of assets |  | (91,608) |
Reversal of impairment | 108 |  |
Assets written off | (202) |  |
Transfers in/(out) | 0 | 0 |
Depreciation expense (note 7) | (50,415) | (30,636) | $ (7,682)
Property, plant and equipment, ending balance | 441,371 | 241,102 | 247,562
Land |  |  |
Reconciliations of Written Down Values of Property, Plant and Equipment [Abstract] |  |  |
Property, plant and equipment, beginning balance | 1,803 | 1,836 |
Additions | 1,817 | 0 |
Deconsolidation of subsidiaries |  | 0 |
Disposals | 0 | (6) |
Exchange differences | (19) | (27) |
Impairment of assets |  | 0 |
Reversal of impairment | 0 |  |
Assets written off | 0 |  |
Transfers in/(out) | 0 | 0 |
Depreciation expense (note 7) | 0 | 0 |
Property, plant and equipment, ending balance | 3,601 | 1,803 | 1,836
Buildings |  |  |
Reconciliations of Written Down Values of Property, Plant and Equipment [Abstract] |  |  |
Property, plant and equipment, beginning balance | 148,058 | 13,082 |
Additions | 3,288 | 22,467 |
Deconsolidation of subsidiaries |  | 0 |
Disposals | 0 | 0 |
Exchange differences | (2,706) | 2,852 |
Impairment of assets |  | 0 |
Reversal of impairment | 0 |  |
Assets written off | 0 |  |
Transfers in/(out) | 62,042 | 113,967 |
Depreciation expense (note 7) | (8,377) | (4,310) |
Property, plant and equipment, ending balance | 202,305 | 148,058 | 13,082
Plant and Equipment |  |  |
Reconciliations of Written Down Values of Property, Plant and Equipment [Abstract] |  |  |
Property, plant and equipment, beginning balance | 3,433 | 3,200 |
Additions | 876 | 673 |
Deconsolidation of subsidiaries |  | 0 |
Disposals | (35) | 0 |
Exchange differences | (104) | (93) |
Impairment of assets |  | 0 |
Reversal of impairment | 0 |  |
Assets written off | 0 |  |
Transfers in/(out) | 0 | 0 |
Depreciation expense (note 7) | (456) | (347) |
Property, plant and equipment, ending balance | 3,714 | 3,433 | 3,200
Mining Hardware |  |  |
Reconciliations of Written Down Values of Property, Plant and Equipment [Abstract] |  |  |
Property, plant and equipment, beginning balance | 73,381 | 163,147 |
Additions | 65,291 | 163,663 |
Deconsolidation of subsidiaries |  | (90,054) |
Disposals | (6) | (39,046) |
Exchange differences | (1,595) | (7,826) |
Impairment of assets |  | (90,524) |
Reversal of impairment | 0 |  |
Assets written off | 0 |  |
Transfers in/(out) | 0 | 0 |
Depreciation expense (note 7) | (39,802) | (25,979) |
Property, plant and equipment, ending balance | 97,269 | 73,381 | 163,147
HPC Hardware |  |  |
Reconciliations of Written Down Values of Property, Plant and Equipment [Abstract] |  |  |
Property, plant and equipment, beginning balance | 0 | 0 |
Additions | 33,685 | 0 |
Deconsolidation of subsidiaries |  | 0 |
Disposals | 0 | 0 |
Exchange differences | (369) | 0 |
Impairment of assets |  | 0 |
Reversal of impairment | 0 |  |
Assets written off | 0 |  |
Transfers in/(out) |  | 0 |
Depreciation expense (note 7) | (1,780) | 0 |
Property, plant and equipment, ending balance | 31,536 | 0 | 0
Development Assets |  |  |
Reconciliations of Written Down Values of Property, Plant and Equipment [Abstract] |  |  |
Property, plant and equipment, beginning balance | 14,427 | 66,297 |
Additions | 150,408 | 67,866 |
Deconsolidation of subsidiaries |  | 0 |
Disposals | (5) | 0 |
Exchange differences | 252 | (4,685) |
Impairment of assets |  | (1,084) |
Reversal of impairment | 108 |  |
Assets written off | (202) |  |
Transfers in/(out) | (62,042) | (113,967) |
Depreciation expense (note 7) | 0 | 0 |
Property, plant and equipment, ending balance | $ 102,946 | $ 14,427 | $ 66,297

X
- Definition The amount of depreciation of property, plant and equipment. [Refer: Depreciation and amortisation expense; Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 73 -Subparagraph e -Clause vii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_73_e_vii&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 75 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_75_a&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of impairment loss recognised in profit or loss for property, plant and equipment. [Refer: Impairment loss recognised in profit or loss; Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 73 -Subparagraph e -Clause v -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_73_e_v&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 98 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_98_a&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The increase (decrease) in property, plant and equipment resulting from transfers. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 73 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_73_e&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of tangible assets that: (a) are held for use in the production or supply of goods or services, for rental to others, or for administrative purposes; and (b) are expected to be used during more than one period. Note that right-of-use assets are not included. [Contrast: Property, plant and equipment including right-of-use assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 73 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_73_e&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 54 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_54_a&doctype=Standard -URIDate 2024-03-27 + Details
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