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v3.22.1

Mineral Property, Plant and Equipment (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment | $ 3,101.3 |
Pre-tax impairment charge | 224.3 | $ 0.0
Mineral property, plant and equipment | 3,108.5 | 3,101.3
Gross carrying amount [member] |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment | 4,466.6 | 4,138.0
Additions | 359.3 | 243.0
Revisions | 29.8 | 17.1
Disposals | (6.0) | (5.6)
Transfers |  | 0.0
Mineral property, plant and equipment | 4,865.4 | 4,466.6
Accumulated depreciation, amortisation and impairment [member] |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment | (1,365.3) | (1,204.6)
Amortization | 177.3 | 165.3
Disposals | 4.5 | 4.6
Pre-tax impairment charge | 218.8 |
Mineral property, plant and equipment | (1,756.9) | (1,365.3)
Plant and Equipment [Member] |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment | 888.7 |
Mineral property, plant and equipment | 911.5 | 888.7
Plant and Equipment [Member] | Gross carrying amount [member] |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment | 1,530.0 | 1,320.3
Additions | 105.3 | 94.1
Revisions | 0.0 | 0.0
Disposals | (6.0) | (5.6)
Transfers |  | 121.2
Mineral property, plant and equipment | 1,629.3 | 1,530.0
Plant and Equipment [Member] | Accumulated depreciation, amortisation and impairment [member] |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment | (641.3) | (569.4)
Amortization | 80.7 | 76.5
Disposals | 4.5 | 4.6
Pre-tax impairment charge | 0.3 |
Mineral property, plant and equipment | (717.8) | (641.3)
Mineral property - non-depletable |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment | 1,768.2 |
Mineral property, plant and equipment | 1,819.4 | 1,768.2
Mineral property - non-depletable | Gross carrying amount [member] |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment | 2,483.4 | 2,316.5
Additions | 113.7 | 95.0
Revisions | 18.4 | 17.1
Disposals | 0.0 | 0.0
Transfers |  | 0.0
Mineral property, plant and equipment | 2,631.2 | 2,483.4
Mineral property - non-depletable | Accumulated depreciation, amortisation and impairment [member] |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment | (715.2) | (626.4)
Amortization | 96.6 | 88.8
Disposals | 0.0 | 0.0
Pre-tax impairment charge | 0.0 |
Mineral property, plant and equipment | (811.8) | (715.2)
Mineral Property - Non-Depletable [Member] |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment | 157.7 |
Mineral property, plant and equipment | 143.2 | 157.7
Mineral Property - Non-Depletable [Member] | Gross carrying amount [member] |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment | 157.7 | 239.2
Additions | 116.5 | 39.7
Revisions | 11.4 | 0.0
Disposals | 0.0 | 0.0
Transfers |  | (121.2)
Mineral property, plant and equipment | 285.6 | 157.7
Mineral Property - Non-Depletable [Member] | Accumulated depreciation, amortisation and impairment [member] |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment | 0.0 | 0.0
Amortization | 0.0 | 0.0
Disposals | 0.0 | 0.0
Pre-tax impairment charge | 142.4 |
Mineral property, plant and equipment | (142.4) | 0.0
Exploration and evaluation |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment | 286.7 |
Mineral property, plant and equipment | 234.4 | 286.7
Exploration and evaluation | Gross carrying amount [member] |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment | 295.5 | 262.0
Additions | 23.8 | 14.2
Revisions | 0.0 | 0.0
Disposals | 0.0 | 0.0
Transfers |  | 0.0
Mineral property, plant and equipment | 319.3 | 295.5
Exploration and evaluation | Accumulated depreciation, amortisation and impairment [member] |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment | (8.8) | (8.8)
Amortization | 0.0 | 0.0
Disposals | 0.0 | 0.0
Pre-tax impairment charge | 76.1 |
Mineral property, plant and equipment | (84.9) | (8.8)
Trillium | Gross carrying amount [member] |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Additions |  | 19.3
Trillium | Plant and Equipment [Member] | Gross carrying amount [member] |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Additions |  | 0.0
Trillium | Mineral property - non-depletable | Gross carrying amount [member] |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Additions |  | 0.0
Trillium | Mineral Property - Non-Depletable [Member] | Gross carrying amount [member] |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Additions |  | 0.0
Trillium | Exploration and evaluation | Gross carrying amount [member] |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Additions |  | 19.3
Island Gold [Member] | Gross carrying amount [member] |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Additions | 15.7 | 54.8
Island Gold [Member] | Plant and Equipment [Member] | Gross carrying amount [member] |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Additions | 0.0 | 0.0
Island Gold [Member] | Mineral property - non-depletable | Gross carrying amount [member] |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Additions | 15.7 | 54.8
Island Gold [Member] | Mineral Property - Non-Depletable [Member] | Gross carrying amount [member] |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Additions | 0.0 | 0.0
Island Gold [Member] | Exploration and evaluation | Gross carrying amount [member] |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Additions | $ 0.0 | $ 0.0

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- Definition The amount of additions to property, plant and equipment other than those acquired through business combinations. [Refer: Business combinations [member]; Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2021-01-01 -Paragraph 73 -Subparagraph e -Clause i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2021-en-r&anchor=para_73_e_i&doctype=Standard -URIDate 2021-03-24 + Details
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- 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 2021-01-01 -Paragraph 73 -Subparagraph e -Clause vii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2021-en-r&anchor=para_73_e_vii&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2021-01-01 -Paragraph 75 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2021-en-r&anchor=para_75_a&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The increase (decrease) in property, plant and equipment resulting from changes that the entity does not separately disclose in the same statement or note. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2021-01-01 -Paragraph 73 -Subparagraph e -Clause ix -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2021-en-r&anchor=para_73_e_ix&doctype=Standard -URIDate 2021-03-24 + 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 2021-01-01 -Paragraph 73 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2021-en-r&anchor=para_73_e&doctype=Standard -URIDate 2021-03-24 + 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. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2021-01-01 -Paragraph 73 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2021-en-r&anchor=para_73_e&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 54 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_54_a&doctype=Standard -URIDate 2021-03-24 + Details
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