XML 208 R119.htm IDEA: XBRL DOCUMENT
v3.22.0.1

EXPLORATION AND EVALUATION ASSETS (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2020 | Dec. 31, 2020 | Dec. 31, 2021 | Dec. 31, 2020
Reconciliation of changes in property, plant and equipment [abstract] |  |  |  |
Balance, beginning of the year |  |  | $ 2,362.0 |
Exploration and evaluation expenditures |  |  | 38.1 | $ 27.9
Balance, end of the year | $ 2,362.0 | $ 2,362.0 | 2,587.9 | 2,362.0
Exploration and evaluation assets |  |  |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |  |  |
Balance, beginning of the year |  |  | 54.8 | 42.2
Exploration and evaluation expenditures |  |  | 1.9 |
Acquired Exploration and evaluation assets |  |  | 5.0 | 12.6
Balance, end of the year | 54.8 | 54.8 | 61.7 | 54.8
Exploration and evaluation assets | Diakha-Siribaya Gold project |  |  |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |  |  |
Balance, beginning of the year |  |  | 36.6 | 36.6
Exploration and evaluation expenditures |  |  | 0.0 |
Acquired Exploration and evaluation assets |  |  | 0.0 | 0.0
Balance, end of the year | 36.6 | 36.6 | 36.6 | 36.6
Exploration and evaluation assets | Fayolle property |  |  |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |  |  |
Balance, beginning of the year |  |  | 7.3 | 0.0
Exploration and evaluation expenditures |  |  | 1.9 |
Acquired Exploration and evaluation assets |  | 0.6 | 0.0 | 7.3
Balance, end of the year | 7.3 | 7.3 | 9.2 | 7.3
Exploration and evaluation assets | Monster Lake project |  |  |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |  |  |
Balance, beginning of the year |  |  | 7.8 | 2.5
Exploration and evaluation expenditures |  |  | 0.0 |
Acquired Exploration and evaluation assets | 5.3 |  | 0.0 | 5.3
Balance, end of the year | 7.8 | 7.8 | 7.8 | 7.8
Exploration and evaluation assets | Other Projects |  |  |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |  |  |
Balance, beginning of the year |  |  | 3.1 | 3.1
Exploration and evaluation expenditures |  |  | 0.0 |
Acquired Exploration and evaluation assets |  |  | 5.0 | 0.0
Balance, end of the year | $ 3.1 | $ 3.1 | $ 8.1 | $ 3.1

X
- 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
Name: | ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of expense arising from the search for mineral resources, including minerals, oil, natural gas and similar non-regenerative resources after the entity has obtained legal rights to explore in a specific area, as well as the determination of the technical feasibility and commercial viability of extracting the mineral resource. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 6 -IssueDate 2021-01-01 -Paragraph 24 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=6&code=ifrs-tx-2021-en-r&anchor=para_24_b&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_ExpenseArisingFromExplorationForAndEvaluationOfMineralResources
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- 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
Name: | ifrs-full_PropertyPlantAndEquipment
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | ifrs-full_ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ifrs-full_TangibleExplorationAndEvaluationAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | iag_NameOfProperty1Axis=iag_SiribayaProjectMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | iag_NameOfProperty1Axis=iag_FayollePropertyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | iag_NameOfProperty1Axis=iag_MonsterLakeProjectMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | iag_NameOfProperty1Axis=iag_OtherProjectMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |