Name:	fnv_DepositsRelatedToCanadaRevenueAgencyAuditsCurrent
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Period Type:	instant

Amount of refundable cash deposits made to a government tax authority (e.g., CRA, IRS, HMRC) in connection with audits, reassessments, objections, or appeals, expected to be recovered within twelve months after the reporting period.

No definition available.

Name:	fnv_DepositsWithTaxAuthorityCurrent
Namespace Prefix:	fnv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The amount of finance costs capitalized current.

No definition available.

Name:	fnv_FinanceCostsCapitalizedCurrent
Namespace Prefix:	fnv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Amount of interest receivable related to refundable cash deposits made to a government tax authority (such as CRA, IRS, or other national or regional tax authorities) in connection with audits, reassessments, objections, or appeals. This amount is expected to be recovered within twelve months after the reporting period. Represents interest accrued on such deposits that remains outstanding as of the reporting date.

No definition available.

Name:	fnv_InterestReceivableOnTaxDepositsCurrent
Namespace Prefix:	fnv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The amount of cash inflow associated with the refund of deposits.

No definition available.

Name:	fnv_ProceedsFromRefundOfDeposits
Namespace Prefix:	fnv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The amount recognised as a current asset for expenditures made prior to the period when the economic benefit will be realised.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2027-01-01
-Name IAS
-Number 1
-IssueDate 2025-01-01
-Paragraph 112
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_112_c&doctype=Standard
-URIDate 2025-03-27

Name:	ifrs-full_CurrentPrepaidExpenses
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The amount of current receivables from taxes other than income tax. [Refer: Receivables from taxes other than income tax]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2027-01-01
-Name IAS
-Number 1
-IssueDate 2025-01-01
-Paragraph 78
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_78_b&doctype=Standard
-URIDate 2025-03-27

Name:	ifrs-full_CurrentReceivablesFromTaxesOtherThanIncomeTax
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

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

The amount of current assets that the entity does not separately disclose in the same statement or note. [Refer: Current assets]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2027-01-01
-Name IAS
-Number 1
-IssueDate 2025-01-01
-Paragraph 55
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_55&doctype=Standard
-URIDate 2025-03-27