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Employee future benefits - Future Benefits (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Disclosure of net defined benefit liability (asset) [line items] |  |
Net defined benefit liability (asset), beginning balance | $ 3,941 |
Other |  |
Net defined benefit liability (asset), ending balance | 1,894 | $ 3,941
Defined benefit pension plan |  |
Disclosure of net defined benefit liability (asset) [line items] |  |
Net defined benefit liability (asset), beginning balance | 3,856 | 4,308
Included in profit or loss |  |
Current service cost | 37 | 36
Interest cost (income) | 93 | 126
Benefits payable | 0 | 0
Future plan expense | 130 | 162
Actuarial loss (gain) arising from: |  |
Demographic assumptions | 56 | (150)
Financial assumptions | (986) | 2,054
Experience adjustment | 92 | 110
Return on plan assets excluding interest | (1,334) | (1,733)
Plan expenses | 0 | 0
Remeasurement (gains) losses | (2,172) | 281
Other |  |
Contributions paid by the employer | 0 | (895)
Benefits paid | 0 | 0
Other total | 0 | (895)
Net defined benefit liability (asset), ending balance | 1,814 | 3,856
Defined benefit pension plan | Defined benefit obligation |  |
Disclosure of net defined benefit liability (asset) [line items] |  |
Net defined benefit liability (asset), beginning balance | 20,203 | 18,272
Included in profit or loss |  |
Current service cost | 37 | 36
Interest cost (income) | 476 | 566
Benefits payable | 0 | 0
Future plan expense | 513 | 602
Actuarial loss (gain) arising from: |  |
Demographic assumptions | 56 | (150)
Financial assumptions | (986) | 2,054
Experience adjustment | 92 | 110
Return on plan assets excluding interest | 0 | 0
Plan expenses | (30) | (36)
Remeasurement (gains) losses | (868) | 1,978
Other |  |
Contributions paid by the employer | 0 | 0
Benefits paid | (661) | (649)
Other total | (661) | (649)
Net defined benefit liability (asset), ending balance | 19,187 | 20,203
Defined benefit pension plan | Fair value of plan assets |  |
Disclosure of net defined benefit liability (asset) [line items] |  |
Net defined benefit liability (asset), beginning balance | (16,347) | (13,964)
Included in profit or loss |  |
Current service cost | 0 | 0
Interest cost (income) | (383) | (440)
Benefits payable | 0 | 0
Future plan expense | (383) | (440)
Actuarial loss (gain) arising from: |  |
Demographic assumptions | 0 | 0
Financial assumptions | 0 | 0
Experience adjustment | 0 | 0
Return on plan assets excluding interest | (1,334) | (1,733)
Plan expenses | 30 | 36
Remeasurement (gains) losses | (1,304) | (1,697)
Other |  |
Contributions paid by the employer | 0 | (895)
Benefits paid | 661 | 649
Other total | 661 | (246)
Net defined benefit liability (asset), ending balance | (17,373) | (16,347)
Other post-retirement benefit plan |  |
Disclosure of net defined benefit liability (asset) [line items] |  |
Net defined benefit liability (asset), beginning balance | 85 | 88
Included in profit or loss |  |
Interest cost (income) | 1 | 2
Future plan expense | 1 | 2
Actuarial loss (gain) arising from: |  |
Demographic assumptions | 0 | (5)
Financial assumptions | (2) | 6
Experience adjustment | 4 | 7
Remeasurement (gains) losses | 2 | 8
Other |  |
Contributions paid by the employer | (8) | (13)
Benefits paid | 0 | 0
Other total | (8) | (13)
Net defined benefit liability (asset), ending balance | 80 | 85
Other post-retirement benefit plan | Defined benefit obligation |  |
Disclosure of net defined benefit liability (asset) [line items] |  |
Net defined benefit liability (asset), beginning balance | 85 | 88
Included in profit or loss |  |
Interest cost (income) | 1 | 2
Future plan expense | 1 | 2
Actuarial loss (gain) arising from: |  |
Demographic assumptions | 0 | (5)
Financial assumptions | (2) | 6
Experience adjustment | 4 | 7
Remeasurement (gains) losses | 2 | 8
Other |  |
Contributions paid by the employer | 0 | 0
Benefits paid | (8) | (13)
Other total | (8) | (13)
Net defined benefit liability (asset), ending balance | 80 | 85
Other post-retirement benefit plan | Fair value of plan assets |  |
Disclosure of net defined benefit liability (asset) [line items] |  |
Net defined benefit liability (asset), beginning balance | 0 | 0
Included in profit or loss |  |
Interest cost (income) | 0 | 0
Future plan expense | 0 | 0
Actuarial loss (gain) arising from: |  |
Demographic assumptions | 0 | 0
Financial assumptions | 0 | 0
Experience adjustment | 0 | 0
Remeasurement (gains) losses | 0 | 0
Other |  |
Contributions paid by the employer | (8) | (13)
Benefits paid | 8 | 13
Other total | 0 | 0
Net defined benefit liability (asset), ending balance | $ 0 | $ 0

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- Definition Increase (Decrease) Through Changes Other Than Recognized In Profit (Loss) Or Remeasurement, Net Defined Benefit Liability (Asset) + References No definition available. + Details
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- Definition The decrease (increase) in a net defined benefit liability (asset) resulting from actuarial gains (losses) arising from changes in demographic assumptions that result in remeasurements of the net defined benefit liability (asset). Demographic assumptions deal with matters such as: (a) mortality; (b) rates of employee turnover, disability and early retirement; (c) the proportion of plan members with dependants who will be eligible for benefits; (d) the proportion of plan members who will select each form of payment option available under the plan terms; and (e) claim rates under medical plans. [Refer: Net defined benefit liability (asset)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2021-01-01 -Paragraph 141 -Subparagraph c -Clause ii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_141_c_ii&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The decrease (increase) in a net defined benefit liability (asset) resulting from actuarial gains (losses) arising from changes in financial assumptions that result in remeasurements of the net defined benefit liability (asset). Financial assumptions deal with items such as: (a) the discount rate; (b) benefit levels, excluding any cost of the benefits to be met by employees, and future salary; (c) in the case of medical benefits, future medical costs, including claim handling costs (ie the costs that will be incurred in processing and resolving claims, including legal and adjuster's fees); and (d) taxes payable by the plan on contributions relating to service before the reporting date or on benefits resulting from that service. [Refer: Net defined benefit liability (asset)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2021-01-01 -Paragraph 141 -Subparagraph c -Clause iii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_141_c_iii&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The decrease (increase) in a net defined benefit liability (asset) resulting from actuarial gains (losses) arising from experience adjustments that result in remeasurements of the net defined benefit liability (asset). Experience adjustments deal with the effects of differences between the previous actuarial assumptions and what has actually occurred. [Refer: Net defined benefit liability (asset)] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2021-01-01 -Paragraph 141 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_141_c&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The decrease (increase) in net defined benefit liability (asset) resulting from contributions to a defined benefit plan by the employer. [Refer: Net defined benefit liability (asset); Defined benefit plans [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2021-01-01 -Paragraph 141 -Subparagraph f -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_141_f&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The increase (decrease) in the net defined benefit liability (asset) resulting from employee service in the current period. [Refer: Net defined benefit liability (asset)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2021-01-01 -Paragraph 141 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_141_a&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The increase (decrease) in the net defined benefit liability (asset) resulting from expense (income) included in profit or loss. [Refer: Net defined benefit liability (asset); Profit (loss)] [Contrast: Post-employment benefit expense in profit or loss, defined benefit plans] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2021-01-01 -Paragraph 141 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_141&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The increase (decrease) in the net defined benefit liability (asset) resulting from changes that the entity does not separately disclose in the same statement or note. [Refer: Net defined benefit liability (asset)] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2021-01-01 -Paragraph 141 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_141&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The amount of deficit or surplus in a defined benefit plan, adjusted for any effect of limiting a net defined benefit asset to the asset ceiling. [Refer: Defined benefit plans [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2021-01-01 -Paragraph 140 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_140_a&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The decrease (increase) in the net defined benefit liability (asset) resulting from payments from the plan in respect of settlements. [Refer: Decrease (increase) in net defined benefit liability (asset) resulting from gains (losses) arising from settlements; Net defined benefit liability (asset); Defined benefit plans [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2021-01-01 -Paragraph 141 -Subparagraph g -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_141_g&doctype=Standard -URIDate 2021-03-24 + Details
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