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Property, plant and equipment - Right-of-use Assets Rollforward (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Disclosure of quantitative information about right-of-use assets [line items] |  |
Beginning, Right-of-use assets | $ 12,774 |
Ending, Right-of-use assets | 12,206 | $ 12,774
Property |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |
Beginning, Right-of-use assets | 12,537 |
Ending, Right-of-use assets | 11,837 | 12,537
Equipment |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |
Beginning, Right-of-use assets | 121 |
Ending, Right-of-use assets | 139 | 121
Vehicle |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |
Beginning, Right-of-use assets | 116 |
Ending, Right-of-use assets | 230 | 116
Cost |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |
Beginning, Right-of-use assets | 25,022 | 24,794
Additions | 2,013 | 156
Additions through acquisition | 174 |
Transfer | 159 |
De-recognition |  | (88)
Effect of movements in exchange rates | (76) | 160
Ending, Right-of-use assets | 26,974 | 25,022
Cost | Property |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |
Beginning, Right-of-use assets | 24,665 | 24,568
Additions | 1,967 | 0
Additions through acquisition | 0 |
Transfer | 137 |
De-recognition |  | (46)
Effect of movements in exchange rates | (68) | 143
Ending, Right-of-use assets | 26,427 | 24,665
Cost | Equipment |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |
Beginning, Right-of-use assets | 149 | 84
Additions | 46 | 102
Additions through acquisition | 0 |
Transfer | 22 |
De-recognition |  | (42)
Effect of movements in exchange rates | 2 | 5
Ending, Right-of-use assets | 175 | 149
Cost | Vehicle |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |
Beginning, Right-of-use assets | 208 | 142
Additions | 0 | 54
Additions through acquisition | 174 |
Transfer | 0 |
De-recognition |  | 0
Effect of movements in exchange rates | (10) | 12
Ending, Right-of-use assets | 372 | 208
Accumulated depreciation |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |
Beginning, Right-of-use assets | (12,248) | (9,704)
Transfer | 159 |
Depreciation | 2,715 | 2,559
De-recognition |  | (61)
Effect of movements in exchange rates | (36) | 46
Ending, Right-of-use assets | (14,768) | (12,248)
Accumulated depreciation | Property |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |
Beginning, Right-of-use assets | (12,128) | (9,647)
Transfer | 137 |
Depreciation | 2,633 | 2,488
De-recognition |  | (46)
Effect of movements in exchange rates | (34) | 39
Ending, Right-of-use assets | (14,590) | (12,128)
Accumulated depreciation | Equipment |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |
Beginning, Right-of-use assets | (28) | (17)
Transfer | 22 |
Depreciation | 28 | 25
De-recognition |  | (15)
Effect of movements in exchange rates | 2 | 1
Ending, Right-of-use assets | (36) | (28)
Accumulated depreciation | Vehicle |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |
Beginning, Right-of-use assets | (92) | (40)
Transfer | 0 |
Depreciation | 54 | 46
De-recognition |  | 0
Effect of movements in exchange rates | (4) | 6
Ending, Right-of-use assets | $ (142) | $ (92)

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- Definition Additions through business combinations, right of use assets + References No definition available. + Details
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- Definition De-recognition of right-of-use assets + References No definition available. + Details
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- Definition The amount of additions to right-of-use assets. [Refer: Right-of-use assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2021-01-01 -Paragraph 53 -Subparagraph h -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2021-en-r&anchor=para_53_h&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The amount of assets that represent a lessee's right to use an underlying asset for the lease term. Underlying asset is an asset that is the subject of a lease, for which the right to use that asset has been provided by a lessor to a lessee. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2021-01-01 -Paragraph 53 -Subparagraph j -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2021-en-r&anchor=para_53_j&doctype=Standard -URIDate 2021-03-24 + Details
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