Name:	fnv_AdditionalTaxableIncomeFromCraSettlementAmount
Namespace Prefix:	fnv_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Expected principal cash refunds from the CRA related to revised Notices of Reassessment under the CRA Settlement.

No definition available.

Name:	fnv_CashRefundExpectedAmount
Namespace Prefix:	fnv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Amount of CRA cash refunds received after the reporting period (subsequent event) relating to the CRA Settlement.

No definition available.

Name:	fnv_CashRefundsReceivedSubsequentToPeriodEndAmount
Namespace Prefix:	fnv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Amount of standby letters of credit posted as security in respect of CRA reassessments, expected to be cancelled following the CRA Settlement.

No definition available.

Name:	fnv_EstimatedFinancialEffectOfContingentLiabilitiesCancelled
Namespace Prefix:	fnv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Represents the costplus markup historically applied by the Company for routine intercompany services.

No definition available.

Name:	fnv_InterCompanyServiceFeeMarkup
Namespace Prefix:	fnv_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Represents the percentage of costplus markup historically applied by the Company for routine intercompany services.

No definition available.

Name:	fnv_InterCompanyServiceFeeStandardMarkup
Namespace Prefix:	fnv_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Interest income recognized in the current financial year on CRA cash refunds connected with the CRA Settlement.

No definition available.

Name:	fnv_InterestRefundRecognizedAmount
Namespace Prefix:	fnv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The value (monetary amount) of the awards the plaintiff seeks in the legal matter.

No definition available.

Name:	fnv_LossContingencyDamageSoughtValue
Namespace Prefix:	fnv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Represents the percentage of global minimum tax rate.

No definition available.

Name:	fnv_PercentageOfGlobalMinimumTaxRate
Namespace Prefix:	fnv_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

Percentage of reassessed amounts posted as security in cash

No definition available.

Name:	fnv_PercentageOfReassessedAmountsPostedAsSecurityInCash
Namespace Prefix:	fnv_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Reassessed amounts posted as security in cash.

No definition available.

Name:	fnv_ReassessedAmountsPostedAsSecurityInCash
Namespace Prefix:	fnv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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.

No definition available.

Name:	ifrs-full_DisclosureOfContingentLiabilitiesLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

The amount of the estimated financial effect of contingent liabilities. [Refer: Classes of contingent liabilities [domain]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 37
-IssueDate 2025-01-01
-Paragraph 86
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=37&code=ifrs-tx-2025-en-r&anchor=para_86_a&doctype=Standard
-URIDate 2025-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2027-01-01
-Name IFRS
-Number 19
-IssueDate 2025-01-01
-Paragraph 259
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_259_a&doctype=Standard
-URIDate 2025-03-27

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2027-01-01
-Name IFRS
-Number 19
-IssueDate 2025-01-01
-Paragraph 259
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_259_a&doctype=Standard
-URIDate 2025-03-27

Name:	ifrs-full_EstimatedFinancialEffectOfContingentLiabilities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Name:	ifrs-full_ClassesOfContingentLiabilitiesAxis=ifrs-full_TaxContingentLiabilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	fnv_IfrsTaxPeriodAxis=fnv_TaxYear2013Through2015Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	fnv_IfrsTaxPeriodAxis=fnv_TaxYear2013Through2019Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: