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Intangible assets - Rollforward (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Reconciliation of Changes in Intangible assets [Roll Forward] |  |
Beginning balance | $ 1,406 | $ 5,214
Additions to intangible assets | 1,768 | 154
Amortization expense | (759) | (1,696)
Impairment charges on intangible assets | (658) | (2,266)
At December 31, 2023 |  | 1,406
Impaired asset retirement adjustment | 0 | 0
Ending balance | 1,757 | 1,406
Cost |  |
Reconciliation of Changes in Intangible assets [Roll Forward] |  |
Beginning balance | 59,582 | 79,227
Additions to intangible assets | 1,768 | 154
Amortization expense | 0 |
Impairment charges on intangible assets |  |
At December 31, 2023 |  | 79,381
Impaired asset retirement adjustment | 6,269 | 19,799
Ending balance | 55,081 | 59,582
Accumulated depreciation |  |
Reconciliation of Changes in Intangible assets [Roll Forward] |  |
Beginning balance | (58,176) | (74,013)
Additions to intangible assets | 0 | 0
Amortization expense | 759 | 1,696
Impairment charges on intangible assets | (658) | (2,266)
At December 31, 2023 |  | 77,975
Impaired asset retirement adjustment | (6,269) | (19,799)
Ending balance | $ (53,324) | $ (58,176)

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- Definition Intangible Assets Other than Goodwill, Excluding Asset Impairment Adjustment + References No definition available. + Details
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- Definition Reconciliation of Changes in Intangible assets + References No definition available. + Details
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- Definition The amount of additions to intangible assets other than goodwill, other than those acquired through business combinations. [Refer: Total for all business combinations [member]; Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2024-01-01 -Paragraph 118 -Subparagraph e -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2024-en-r&anchor=para_118_e_i&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of amortisation of intangible assets other than goodwill. [Refer: Depreciation and amortisation expense; Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2024-01-01 -Paragraph 118 -Subparagraph e -Clause vi -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2024-en-r&anchor=para_118_e_vi&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of impairment loss recognised in profit or loss for intangible assets other than goodwill. [Refer: Impairment loss recognised in profit or loss; Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2024-01-01 -Paragraph 118 -Subparagraph e -Clause iv -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2024-en-r&anchor=para_118_e_iv&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of identifiable non-monetary assets without physical substance. This amount does not include goodwill. [Refer: Goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2024-01-01 -Paragraph 118 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2024-en-r&anchor=para_118_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 c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_54_c&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The decrease in intangible assets other than goodwill resulting from retirements. [Refer: Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 38 -IssueDate 2024-01-01 -Paragraph 118 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2024-en-r&anchor=para_118_e&doctype=Standard -URIDate 2024-03-27 + Details
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