XML 173 R149.htm IDEA: XBRL DOCUMENT
v3.24.0.1

IMPAIRMENT (CHARGE) REVERSAL - Narrative (Details) | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 31, 2022 USD ($) | Jun. 30, 2022 USD ($) | Dec. 31, 2023 USD ($) $ / oz | Dec. 31, 2021 USD ($)
Disclosure of impairment loss and reversal of impairment loss [line items] |  |  |  |
Net carrying amount | $ 2,598,000,000 |  | $ 3,496,500,000 |
Price of gold, from 2022 to 2025 ($ per ounce) | $ / oz |  |  | 1,700 |
Price of gold, from 2026 onward ($ per ounce) | $ / oz |  |  | 1,600 |
Price per ounce of gold of un-modeled measured and indicated resources |  |  | $ 50 |
Doyon CGU |  |  |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |  |  |
Impairment charge |  | $ 38,400,000 |  |
Recoverable amount |  | 96,000,000 |  |
Plant and equipment |  |  |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |  |  |
Net carrying amount | 419,300,000 |  | 384,700,000 |
Gross carrying amount |  |  |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |  |  |
Net carrying amount | 5,654,300,000 |  | 6,795,900,000 | $ 6,470,100,000
Gross carrying amount | Plant and equipment |  |  |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |  |  |
Net carrying amount | 1,498,200,000 |  | $ 1,554,600,000 | $ 1,977,900,000
Gross carrying amount | Plant and equipment | Doyon CGU |  |  |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |  |  |
Net carrying amount |  | $ 38,400,000 |  |
Côté Gold Project |  |  |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |  |  |
Real weighted average costs of capital |  |  | 0.055 |
Doyon and Rosebel CGUs |  |  |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |  |  |
Real weighted average costs of capital |  |  | 0.085 |
Rosebel CGU |  |  |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |  |  |
Sale of subsidiary, cash consideration | 360,000,000 |  |  |
Impairment charge | 110,100,000 |  |  |
Impairment post tax impartment charge | $ 70,500,000 |  |  |

X
- Definition Estimated Closing Foreign Exchange Rate For The First Five Years + References No definition available. + Details
Name: | iag_EstimatedClosingForeignExchangeRateForTheFirstFiveYears
Namespace Prefix: | iag_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition Estimated Gold Price For Next Four Years Used in Current Measurement of Fair Value Less Costs of Disposal + References No definition available. + Details
Name: | iag_EstimatedGoldPriceForNextFourYearsUsedInCurrentMeasurementOfFairValueLessCostsOfDisposal
Namespace Prefix: | iag_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

X
- Definition Estimated Gold Price Thereafter Used in Current Measurement of Fair Value Less Costs of Disposal + References No definition available. + Details
Name: | iag_EstimatedGoldPriceThereafterUsedInCurrentMeasurementOfFairValueLessCostsOfDisposal
Namespace Prefix: | iag_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

X
- Definition Price Per Ounce + References No definition available. + Details
Name: | iag_PricePerOunce
Namespace Prefix: | iag_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Sale Of Subsidiary, Cash Consideration + References No definition available. + Details
Name: | iag_SaleOfSubsidiaryCashConsideration
Namespace Prefix: | iag_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount recognised as a reduction of the carrying amount of an asset or cash-generating unit to its recoverable amount. [Refer: Carrying amount [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2023-01-01 -Paragraph 130 -Subparagraph d -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=36&code=ifrs-tx-2023-en-r&anchor=para_130_d_ii&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2023-01-01 -Paragraph 130 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=36&code=ifrs-tx-2023-en-r&anchor=para_130_b&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_ImpairmentLoss
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of impairment loss recognised in profit or loss. [Refer: Impairment loss; Profit (loss)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2023-01-01 -Paragraph 126 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=36&code=ifrs-tx-2023-en-r&anchor=para_126_a&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2023-01-01 -Paragraph 129 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=36&code=ifrs-tx-2023-en-r&anchor=para_129_a&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_ImpairmentLossRecognisedInProfitOrLoss
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. Note that right-of-use assets are not included. [Contrast: Property, plant and equipment including right-of-use assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2023-01-01 -Paragraph 73 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2023-en-r&anchor=para_73_e&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 54 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_54_a&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_PropertyPlantAndEquipment
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The higher of an asset’s (or cash-generating unit’s) fair value less costs of disposal and its value in use. [Refer: Cash-generating units [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2023-01-01 -Paragraph 130 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=36&code=ifrs-tx-2023-en-r&anchor=para_130_e&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_RecoverableAmountOfAssetOrCashgeneratingUnit
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of reversal of impairment loss recognised in other comprehensive income. [Refer: Reversal of impairment loss; Impairment loss recognised in other comprehensive income] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2023-01-01 -Paragraph 129 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=36&code=ifrs-tx-2023-en-r&anchor=para_129_b&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2023-01-01 -Paragraph 126 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=36&code=ifrs-tx-2023-en-r&anchor=para_126_d&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_ReversalOfImpairmentLossRecognisedInOtherComprehensiveIncome
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | ifrs-full_IndividualAssetsOrCashgeneratingUnitsAxis=iag_DoyonCGUMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis=ifrs-full_GrossCarryingAmountMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=iag_CoteGoldProjectMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=iag_DoyonAndRosebelCGUsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=iag_RosebelCGUMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |