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Intangible assets and goodwill (Details 4) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Disclosure Of Intangible Assets And Goodwill [Line Items] |  |  |  |
Opening balance |  | $ 220,373 |  | $ 223,084
Additions |  | 649 |  | 10,255
Impairment losses recognized in profit or loss for the year |  | (478) |  | (1,798)
Other increases / decreases for foreign currency exchange rates |  | 2,256 |  | 6
Transferred from available for sale |  | 16 |  |
Decreases through sale |  | 0 |  | (136)
Other increases (decreases) |  | (188) |  | 309
Amortization |  | (8,374) |  | (11,347)
Total increases (decreases) |  | (6,119) |  | (2,711)
Closing balance |  | 214,254 |  | 220,373
Gross carrying amount [member] |  |  |  |
Disclosure Of Intangible Assets And Goodwill [Line Items] |  |  |  |
Opening balance |  | 270,753 |  | 260,317
Additions |  | 649 |  | 10,255
Impairment losses recognized in profit or loss for the year |  | 0 |  | 311
Other increases / decreases for foreign currency exchange rates |  | 2,254 |  | 6
Decrease for classification as held for sale |  | 0 |  |
Transferred from available for sale |  | 16 |  |
Decreases through sale |  |  |  | (136)
Other increases (decreases) |  | (188) |  |
Total increases (decreases) |  | 2,731 |  | 10,436
Closing balance |  | 273,484 |  | 270,753
Accumulated depreciation and amortisation [member] |  |  |  |
Disclosure Of Intangible Assets And Goodwill [Line Items] |  |  |  |
Opening balance |  | (50,380) |  | (37,233)
Impairment losses recognized in profit or loss for the year |  | (478) | [1] | (1,798)
Other increases / decreases for foreign currency exchange rates |  | 2 |  | 0
Other increases (decreases) |  | 0 |  | (2)
Amortization |  | (8,374) |  | (11,347)
Total increases (decreases) |  | (8,850) |  | (13,147)
Closing balance |  | (59,230) |  | (50,380)
Indeifinite Intangible assets [Member] | Goodwill [Member] |  |  |  |
Disclosure Of Intangible Assets And Goodwill [Line Items] |  |  |  |
Opening balance |  | 41,966 |  | 34,726
Additions |  | 0 |  | 7,380
Impairment losses recognized in profit or loss for the year |  | 0 |  | (140)
Other increases / decreases for foreign currency exchange rates |  | 0 |  | 0
Transferred from available for sale |  | 0 |  |
Decreases through sale |  | 0 |  | 0
Other increases (decreases) |  | (7,370) |  | 0
Amortization |  | 0 |  | 0
Total increases (decreases) |  | (7,370) |  | 7,240
Closing balance |  | 34,596 |  | 41,966
Indeifinite Intangible assets [Member] | Gross carrying amount [member] | Goodwill [Member] |  |  |  |
Disclosure Of Intangible Assets And Goodwill [Line Items] |  |  |  |
Opening balance |  | 45,500 |  | 38,120
Additions |  | 0 |  | 7,380
Impairment losses recognized in profit or loss for the year |  | 0 |  | 0
Other increases / decreases for foreign currency exchange rates |  | 0 |  | 0
Decrease for classification as held for sale |  | 0 |  |
Transferred from available for sale |  | 0 |  |
Decreases through sale |  |  |  | 0
Other increases (decreases) |  | (7,370) |  |
Total increases (decreases) |  | (7,370) |  | 7,380
Closing balance |  | 38,130 |  | 45,500
Indeifinite Intangible assets [Member] | Accumulated depreciation and amortisation [member] | Goodwill [Member] |  |  |  |
Disclosure Of Intangible Assets And Goodwill [Line Items] |  |  |  |
Opening balance |  | (3,534) |  | (3,394)
Impairment losses recognized in profit or loss for the year |  | 0 | [1] | (140)
Other increases / decreases for foreign currency exchange rates |  | 0 |  | 0
Other increases (decreases) |  | 0 |  | 0
Amortization |  | 0 |  | 0
Total increases (decreases) |  | 0 |  | (140)
Closing balance |  | (3,534) |  | (3,534)
IT programs [member] | Finite intangible assets [Member] |  |  |  |
Disclosure Of Intangible Assets And Goodwill [Line Items] |  |  |  |
Opening balance |  | 4,826 |  | 6,011
Additions |  | 296 |  | 508
Impairment losses recognized in profit or loss for the year |  | 0 |  | (14)
Other increases / decreases for foreign currency exchange rates |  | (17) |  | 5
Transferred from available for sale |  | 0 |  |
Decreases through sale |  | 0 |  | 0
Other increases (decreases) |  | 58 |  | 297
Amortization |  | (1,716) |  | (1,981)
Total increases (decreases) |  | (1,379) |  | (1,185)
Closing balance |  | 3,447 |  | 4,826
IT programs [member] | Gross carrying amount [member] | Finite intangible assets [Member] |  |  |  |
Disclosure Of Intangible Assets And Goodwill [Line Items] |  |  |  |
Opening balance |  | 35,281 |  | 34,471
Additions |  | 296 |  | 508
Impairment losses recognized in profit or loss for the year |  | 0 |  | 297
Other increases / decreases for foreign currency exchange rates |  | (19) |  | 5
Decrease for classification as held for sale |  | 0 |  |
Transferred from available for sale |  | 0 |  |
Decreases through sale |  |  |  | 0
Other increases (decreases) |  | 58 |  |
Total increases (decreases) |  | 335 |  | 810
Closing balance |  | 35,616 |  | 35,281
IT programs [member] | Accumulated depreciation and amortisation [member] | Finite intangible assets [Member] |  |  |  |
Disclosure Of Intangible Assets And Goodwill [Line Items] |  |  |  |
Opening balance |  | (30,455) |  | (28,460)
Impairment losses recognized in profit or loss for the year |  | 0 | [1] | (14)
Other increases / decreases for foreign currency exchange rates |  | 2 |  | 0
Other increases (decreases) |  | 0 |  | 0
Amortization |  | (1,716) |  | (1,981)
Total increases (decreases) |  | (1,714) |  | (1,995)
Closing balance |  | (32,169) |  | (30,455)
Mining rights [Member] | Finite intangible assets [Member] |  |  |  |
Disclosure Of Intangible Assets And Goodwill [Line Items] |  |  |  |
Opening balance |  | 150,046 |  | 157,570
Additions |  | 344 |  | 2,295
Impairment losses recognized in profit or loss for the year |  | (48) |  | (654)
Other increases / decreases for foreign currency exchange rates |  | 2,283 |  | 0
Transferred from available for sale |  | 16 |  |
Decreases through sale |  | 0 |  | (136)
Other increases (decreases) |  | (246) |  | (2)
Amortization |  | (2,863) |  | (9,027)
Total increases (decreases) |  | (514) |  | (7,524)
Closing balance |  | 149,532 |  | 150,046
Mining rights [Member] | Gross carrying amount [member] | Finite intangible assets [Member] |  |  |  |
Disclosure Of Intangible Assets And Goodwill [Line Items] |  |  |  |
Opening balance |  | 160,496 |  | 158,337
Additions |  | 344 |  | 2,295
Impairment losses recognized in profit or loss for the year |  | 0 |  | 0
Other increases / decreases for foreign currency exchange rates |  | 2,283 |  | 0
Decrease for classification as held for sale |  | 0 |  |
Transferred from available for sale |  | 16 |  |
Decreases through sale |  |  |  | (136)
Other increases (decreases) |  | (246) |  |
Total increases (decreases) |  | 2,397 |  | 2,159
Closing balance |  | 162,893 |  | 160,496
Mining rights [Member] | Accumulated depreciation and amortisation [member] | Finite intangible assets [Member] |  |  |  |
Disclosure Of Intangible Assets And Goodwill [Line Items] |  |  |  |
Opening balance |  | (10,450) |  | (767)
Impairment losses recognized in profit or loss for the year |  | (48) | [1] | (654)
Other increases / decreases for foreign currency exchange rates |  | 0 |  | 0
Other increases (decreases) |  | 0 |  | (2)
Amortization |  | (2,863) |  | (9,027)
Total increases (decreases) |  | (2,911) |  | (9,683)
Closing balance |  | (13,361) |  | (10,450)
Water rights and rights of way [member] | Indeifinite Intangible assets [Member] |  |  |  |
Disclosure Of Intangible Assets And Goodwill [Line Items] |  |  |  |
Opening balance |  | 5,343 |  |
Additions |  | 0 |  |
Impairment losses recognized in profit or loss for the year |  | (430) |  |
Other increases / decreases for foreign currency exchange rates |  | (4) |  |
Transferred from available for sale |  | 0 |  |
Decreases through sale |  | 0 |  |
Other increases (decreases) |  | 0 |  |
Amortization |  | 0 |  |
Total increases (decreases) |  | (434) |  |
Closing balance |  | 4,909 |  | 5,343
Water rights and rights of way [member] | Indeifinite Intangible assets [Member] | Gross carrying amount [member] |  |  |  |
Disclosure Of Intangible Assets And Goodwill [Line Items] |  |  |  |
Opening balance |  | 7,424 |  |
Additions |  | 0 |  |
Impairment losses recognized in profit or loss for the year |  | 0 |  |
Other increases / decreases for foreign currency exchange rates |  | (4) |  |
Decrease for classification as held for sale |  | 0 |  |
Transferred from available for sale |  | 0 |  |
Other increases (decreases) |  | 0 |  |
Total increases (decreases) |  | (4) |  |
Closing balance |  | 7,420 |  | 7,424
Water rights and rights of way [member] | Indeifinite Intangible assets [Member] | Accumulated depreciation and amortisation [member] |  |  |  |
Disclosure Of Intangible Assets And Goodwill [Line Items] |  |  |  |
Opening balance |  | (2,081) |  |
Impairment losses recognized in profit or loss for the year | [1] | (430) |  |
Other increases / decreases for foreign currency exchange rates |  | 0 |  |
Other increases (decreases) |  | 0 |  |
Amortization |  | 0 |  |
Total increases (decreases) |  | (430) |  |
Closing balance |  | (2,511) |  | (2,081)
Water rights and rights of way [member] | Indeifinite Intangible assets [Member] |  |  |  |
Disclosure Of Intangible Assets And Goodwill [Line Items] |  |  |  |
Opening balance |  | 23,343 |  | 23,342
Additions |  |  |  | 0
Impairment losses recognized in profit or loss for the year |  |  |  | 0
Other increases / decreases for foreign currency exchange rates |  |  |  | 1
Decreases through sale |  |  |  | 0
Other increases (decreases) |  |  |  | 0
Amortization |  |  |  | 0
Total increases (decreases) |  |  |  | 1
Closing balance |  |  |  | 23,343
Water rights and rights of way [member] | Indeifinite Intangible assets [Member] | Gross carrying amount [member] |  |  |  |
Disclosure Of Intangible Assets And Goodwill [Line Items] |  |  |  |
Opening balance |  | 25,424 |  | 25,423
Additions |  |  |  | 0
Impairment losses recognized in profit or loss for the year |  |  |  | 0
Other increases / decreases for foreign currency exchange rates |  |  |  | 1
Decreases through sale |  |  |  | 0
Total increases (decreases) |  |  |  | 1
Closing balance |  |  |  | 25,424
Water rights and rights of way [member] | Indeifinite Intangible assets [Member] | Accumulated depreciation and amortisation [member] |  |  |  |
Disclosure Of Intangible Assets And Goodwill [Line Items] |  |  |  |
Opening balance |  | (2,081) |  | (2,081)
Impairment losses recognized in profit or loss for the year |  |  |  | 0
Other increases / decreases for foreign currency exchange rates |  |  |  | 0
Other increases (decreases) |  |  |  | 0
Amortization |  |  |  | 0
Total increases (decreases) |  |  |  | 0
Closing balance |  |  |  | (2,081)
Water rights | Finite intangible assets [Member] |  |  |  |
Disclosure Of Intangible Assets And Goodwill [Line Items] |  |  |  |
Opening balance |  | 18,000 |  |
Additions |  | 0 |  |
Impairment losses recognized in profit or loss for the year |  | 0 |  |
Other increases / decreases for foreign currency exchange rates |  | 0 |  |
Transferred from available for sale |  | 0 |  |
Decreases through sale |  | 0 |  |
Other increases (decreases) |  | 0 |  |
Amortization |  | (2,842) |  |
Total increases (decreases) |  | (2,842) |  |
Closing balance |  | 15,158 |  | 18,000
Water rights | Gross carrying amount [member] | Finite intangible assets [Member] |  |  |  |
Disclosure Of Intangible Assets And Goodwill [Line Items] |  |  |  |
Opening balance |  | 18,000 |  |
Additions |  | 0 |  |
Impairment losses recognized in profit or loss for the year |  | 0 |  |
Other increases / decreases for foreign currency exchange rates |  | 0 |  |
Decrease for classification as held for sale |  | 0 |  |
Transferred from available for sale |  | 0 |  |
Other increases (decreases) |  | 0 |  |
Total increases (decreases) |  | 0 |  |
Closing balance |  | 18,000 |  | 18,000
Water rights | Accumulated depreciation and amortisation [member] | Finite intangible assets [Member] |  |  |  |
Disclosure Of Intangible Assets And Goodwill [Line Items] |  |  |  |
Opening balance |  | 0 |  |
Impairment losses recognized in profit or loss for the year | [1] | 0 |  |
Other increases / decreases for foreign currency exchange rates |  | 0 |  |
Other increases (decreases) |  | 0 |  |
Amortization |  | (2,842) |  |
Total increases (decreases) |  | (2,842) |  |
Closing balance |  | (2,842) |  | 0
Customer-related intangible assets [member] | Finite intangible assets [Member] |  |  |  |
Disclosure Of Intangible Assets And Goodwill [Line Items] |  |  |  |
Opening balance |  | 0 |  | 1,273
Additions |  | 0 |  | 0
Impairment losses recognized in profit or loss for the year |  | 0 |  | (990)
Other increases / decreases for foreign currency exchange rates |  | 0 |  | 0
Transferred from available for sale |  | 0 |  |
Decreases through sale |  | 0 |  | 0
Other increases (decreases) |  | 0 |  | 0
Amortization |  | 0 |  | (283)
Total increases (decreases) |  | 0 |  | (1,273)
Closing balance |  | 0 |  | 0
Customer-related intangible assets [member] | Gross carrying amount [member] | Finite intangible assets [Member] |  |  |  |
Disclosure Of Intangible Assets And Goodwill [Line Items] |  |  |  |
Opening balance |  | 1,778 |  | 1,778
Additions |  | 0 |  | 0
Impairment losses recognized in profit or loss for the year |  | 0 |  | 0
Other increases / decreases for foreign currency exchange rates |  | 0 |  | 0
Decrease for classification as held for sale |  | 0 |  |
Transferred from available for sale |  | 0 |  |
Decreases through sale |  |  |  | 0
Other increases (decreases) |  | 0 |  |
Total increases (decreases) |  | 0 |  | 0
Closing balance |  | 1,778 |  | 1,778
Customer-related intangible assets [member] | Accumulated depreciation and amortisation [member] | Finite intangible assets [Member] |  |  |  |
Disclosure Of Intangible Assets And Goodwill [Line Items] |  |  |  |
Opening balance |  | (1,778) |  | (505)
Impairment losses recognized in profit or loss for the year |  | 0 | [1] | (990)
Other increases / decreases for foreign currency exchange rates |  | 0 |  | 0
Other increases (decreases) |  | 0 |  | 0
Amortization |  | 0 |  | (283)
Total increases (decreases) |  | 0 |  | (1,273)
Closing balance |  | (1,778) |  | (1,778)
Intellectual property [Member] | Finite intangible assets [Member] |  |  |  |
Disclosure Of Intangible Assets And Goodwill [Line Items] |  |  |  |
Opening balance |  | 0 |  |
Additions |  | 0 |  |
Impairment losses recognized in profit or loss for the year |  | 0 |  |
Other increases / decreases for foreign currency exchange rates |  | 0 |  |
Transferred from available for sale |  | 0 |  |
Decreases through sale |  | 0 |  |
Other increases (decreases) |  | 7,370 |  |
Amortization |  | (889) |  |
Total increases (decreases) |  | 6,481 |  |
Closing balance |  | 6,481 |  | 0
Intellectual property [Member] | Gross carrying amount [member] | Finite intangible assets [Member] |  |  |  |
Disclosure Of Intangible Assets And Goodwill [Line Items] |  |  |  |
Opening balance |  | 0 |  |
Additions |  | 0 |  |
Impairment losses recognized in profit or loss for the year |  | 0 |  |
Other increases / decreases for foreign currency exchange rates |  | 0 |  |
Decrease for classification as held for sale |  | 0 |  |
Transferred from available for sale |  | 0 |  |
Other increases (decreases) |  | 7,370 |  |
Total increases (decreases) |  | 7,370 |  |
Closing balance |  | 7,370 |  | 0
Intellectual property [Member] | Accumulated depreciation and amortisation [member] | Finite intangible assets [Member] |  |  |  |
Disclosure Of Intangible Assets And Goodwill [Line Items] |  |  |  |
Opening balance |  | 0 |  |
Impairment losses recognized in profit or loss for the year | [1] | 0 |  |
Other increases / decreases for foreign currency exchange rates |  | 0 |  |
Other increases (decreases) |  | 0 |  |
Amortization |  | (889) |  |
Total increases (decreases) |  | (889) |  |
Closing balance |  | (889) |  | 0
Other Intangible Assets [Member] | Finite intangible assets [Member] |  |  |  |
Disclosure Of Intangible Assets And Goodwill [Line Items] |  |  |  |
Opening balance |  | 192 |  | 162
Additions |  | 9 |  | 72
Impairment losses recognized in profit or loss for the year |  | 0 |  | 0
Other increases / decreases for foreign currency exchange rates |  | (6) |  | 0
Transferred from available for sale |  | 0 |  |
Decreases through sale |  | 0 |  | 0
Other increases (decreases) |  | 0 |  | 14
Amortization |  | (64) |  | (56)
Total increases (decreases) |  | (61) |  | 30
Closing balance |  | 131 |  | 192
Other Intangible Assets [Member] | Gross carrying amount [member] | Finite intangible assets [Member] |  |  |  |
Disclosure Of Intangible Assets And Goodwill [Line Items] |  |  |  |
Opening balance |  | 2,274 |  | 2,188
Additions |  | 9 |  | 72
Impairment losses recognized in profit or loss for the year |  | 0 |  | 14
Other increases / decreases for foreign currency exchange rates |  | (6) |  | 0
Decrease for classification as held for sale |  | 0 |  |
Transferred from available for sale |  | 0 |  |
Decreases through sale |  |  |  | 0
Other increases (decreases) |  | 0 |  |
Total increases (decreases) |  | 3 |  | 86
Closing balance |  | 2,277 |  | 2,274
Other Intangible Assets [Member] | Accumulated depreciation and amortisation [member] | Finite intangible assets [Member] |  |  |  |
Disclosure Of Intangible Assets And Goodwill [Line Items] |  |  |  |
Opening balance |  | (2,082) |  | (2,026)
Impairment losses recognized in profit or loss for the year |  | 0 | [1] | 0
Other increases / decreases for foreign currency exchange rates |  | 0 |  | 0
Other increases (decreases) |  | 0 |  | 0
Amortization |  | (64) |  | (56)
Total increases (decreases) |  | (64) |  | (56)
Closing balance |  | $ (2,146) |  | $ (2,082)
[1] | See Note 21.5

X
- Definition The amount of additions to intangible assets other than goodwill, other than those acquired through business combinations. [Refer: Business combinations [member]; Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2021-01-01 -Paragraph 118 -Subparagraph e -Clause i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2021-en-r&anchor=para_118_e_i&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The increase (decrease) in intangible assets other than goodwill. [Refer: Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2021-01-01 -Paragraph 118 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2021-en-r&anchor=para_118_e&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The decrease in intangible assets and goodwill resulting from classification as held for sale or inclusion in a disposal group classified as held for sale. [Refer: Disposal groups classified as held for sale [member]; Intangible assets and goodwill] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 38 -IssueDate 2021-01-01 -Paragraph 118 -Subparagraph e -Clause ii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2021-en-r&anchor=para_118_e_ii&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The decrease in intangible assets and goodwill resulting from disposals. [Refer: Intangible assets and goodwill] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 38 -IssueDate 2021-01-01 -Paragraph 118 -Subparagraph e -Clause ii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2021-en-r&anchor=para_118_e_ii&doctype=Standard -URIDate 2021-03-24 + 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 2021-01-01 -Paragraph 118 -Subparagraph e -Clause iv -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2021-en-r&anchor=para_118_e_iv&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The increase (decrease) in intangible assets other than goodwill resulting from net exchange differences arising on the translation of the financial statements from the functional currency into a different presentation currency, including the translation of a foreign operation into the presentation currency of the reporting entity. [Refer: Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2021-01-01 -Paragraph 118 -Subparagraph e -Clause vii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2021-en-r&anchor=para_118_e_vii&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The increase (decrease) in intangible assets and goodwill resulting from changes that the entity does not separately disclose in the same statement or note. [Refer: Intangible assets and goodwill] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 38 -IssueDate 2021-01-01 -Paragraph 118 -Subparagraph e -Clause viii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2021-en-r&anchor=para_118_e_viii&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The amount of intangible assets and goodwill held by the entity. [Refer: Goodwill; Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_55&doctype=Standard -URIDate 2021-03-24 + Details
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- References No definition available. + Details
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- References No definition available. + Details
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- Definition Increase through transfer from available for sale intangible assets and goodwill. + References No definition available. + Details
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