XML 153 R129.htm IDEA: XBRL DOCUMENT
v3.25.0.1

FAIR VALUE MEASUREMENTS - Narrative (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Liabilities | $ (1,973.7) | $ (2,273.8)
Assets | 5,374.4 | 4,537.9
Recurring fair value measurement |  |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Liabilities | (1,117.1) | (817.7)
Assets | 472.0 | 501.4
Recurring fair value measurement | Embedded derivative | Notes |  |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Assets | 0.0 |
Recurring fair value measurement | Embedded derivative | Term Loan |  |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Assets | 26.7 | 5.1
Not measured at fair value in statement of financial position but for which fair value is disclosed |  |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Liabilities | (1,084.7) | (871.8)
Assets | 472.0 | 501.4
Not measured at fair value in statement of financial position but for which fair value is disclosed | Embedded derivative |  |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Assets | 0.0 | 0.0
Not measured at fair value in statement of financial position but for which fair value is disclosed | Embedded derivative | Notes |  |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Assets |  | 0.0
Not measured at fair value in statement of financial position but for which fair value is disclosed | Embedded derivative | Term Loan |  |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Assets | 26.7 | 5.1
TARF |  |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Liabilities |  | (1.4)
TARF | Recurring fair value measurement |  |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Liabilities |  | (1.4)
TARF | Not measured at fair value in statement of financial position but for which fair value is disclosed |  |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Liabilities |  | (1.4)
Extendible forward arrangement | Recurring fair value measurement |  |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Liabilities |  | (0.5)
Extendible forward arrangement | Not measured at fair value in statement of financial position but for which fair value is disclosed |  |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Liabilities |  | (0.5)
Long-term borrowings | Recurring fair value measurement | Notes |  |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Liabilities | (435.8) | (388.3)
Long-term borrowings | Recurring fair value measurement | Term Loan |  |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Liabilities | (449.2) | (411.0)
Long-term borrowings | Recurring fair value measurement | Credit facility |  |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Liabilities | (220.0) | 0.0
Long-term borrowings | Recurring fair value measurement | Equipment loans |  |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Liabilities | (2.3) | (7.3)
Long-term borrowings | Not measured at fair value in statement of financial position but for which fair value is disclosed | Notes |  |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Liabilities | (452.0) | (452.5)
Long-term borrowings | Not measured at fair value in statement of financial position but for which fair value is disclosed | Term Loan |  |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Liabilities | (400.8) | (400.9)
Long-term borrowings | Not measured at fair value in statement of financial position but for which fair value is disclosed | Credit facility |  |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Liabilities | (220.0) |
Long-term borrowings | Not measured at fair value in statement of financial position but for which fair value is disclosed | Equipment loans |  |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Liabilities | $ (2.1) | $ (7.3)

X
- Definition [Line Items] for Disclosure Of Fair Value Measurement Of Assets And Liabilities [Table] + References No definition available. + Details
Name: | iag_DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesLineItems
Namespace Prefix: | iag_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of a present economic resource controlled by the entity as a result of past events. Economic resource is a right that has the potential to produce economic benefits. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 13 -IssueDate 2024-01-01 -Paragraph 93 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2024-en-r&anchor=para_93_a&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2024-01-01 -Paragraph 28 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2024-en-r&anchor=para_28_c&doctype=Standard -URIDate 2024-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 13 -IssueDate 2024-01-01 -Paragraph 93 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2024-en-r&anchor=para_93_e&doctype=Standard -URIDate 2024-03-27 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2024-01-01 -Paragraph 23 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2024-en-r&anchor=para_23&doctype=Standard -URIDate 2024-03-27 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 13 -IssueDate 2024-01-01 -Paragraph 93 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2024-en-r&anchor=para_93_b&doctype=Standard -URIDate 2024-03-27 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_55&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_Assets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of a present obligation of the entity to transfer an economic resource as a result of past events. Economic resource is a right that has the potential to produce economic benefits. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 13 -IssueDate 2024-01-01 -Paragraph 93 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2024-en-r&anchor=para_93_a&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 13 -IssueDate 2024-01-01 -Paragraph 93 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2024-en-r&anchor=para_93_e&doctype=Standard -URIDate 2024-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2024-01-01 -Paragraph 28 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2024-en-r&anchor=para_28_d&doctype=Standard -URIDate 2024-03-27 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2024-01-01 -Paragraph 23 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2024-en-r&anchor=para_23&doctype=Standard -URIDate 2024-03-27 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 13 -IssueDate 2024-01-01 -Paragraph 93 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2024-en-r&anchor=para_93_b&doctype=Standard -URIDate 2024-03-27 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_55&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_Liabilities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | ifrs-full_MeasurementAxis=ifrs-full_RecurringFairValueMeasurementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=iag_EmbeddedDerivativeFinancialInstruments1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=iag_A575PercentSeniorSecuredNotesDue2028Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=iag_TermLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MeasurementAxis=ifrs-full_NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfLiabilitiesAxis=iag_TargetAccrualRedemptionForwardMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfLiabilitiesAxis=iag_ExtendibleForwardArrangementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfLiabilitiesAxis=ifrs-full_LongtermBorrowingsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=iag_CreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=iag_CaterpillarFinanceCorporationEquipmentLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |