The price per share of the conversion feature embedded in the financial asset.

No definition available.

Name:	fnv_FinancialAssetConvertibleConversionPrice
Namespace Prefix:	fnv_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the fixed interest rate related to financial asset.

+ References

No definition available.

+ Details

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

- Definition

Interest revenue calculated using contractual interest rate.

+ References

No definition available.

+ Details

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

- Definition

The amount of cash advances and loans made to other parties (other than advances and loans made by a financial institution), classified as investing activities.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 7
-IssueDate 2025-01-01
-Paragraph 16
-Subparagraph e
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2025-en-r&anchor=para_16_e&doctype=Standard
-URIDate 2025-03-27

+ Details

Name:	ifrs-full_CashAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The cash inflow from the repayment of advances and loans made to other parties (other than advances and loans of a financial institution), classified as investing activities.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 7
-IssueDate 2025-01-01
-Paragraph 16
-Subparagraph f
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2025-en-r&anchor=para_16_f&doctype=Standard
-URIDate 2025-03-27

+ Details

Name:	ifrs-full_CashReceiptsFromRepaymentOfAdvancesAndLoansMadeToOtherPartiesClassifiedAsInvestingActivities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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

- Details

Name:	ifrs-full_ClassesOfFinancialAssetsAxis=fnv_SkeenaConvertibleDebentureMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_CategoriesOfFinancialAssetsAxis=ifrs-full_LoansAndReceivablesCategoryMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Loans Receivable - Skeena Convertible Debenture AND Noront Term Loan (Details) $ / shares in Units, $ in Millions, $ in Millions					12 Months Ended
	Jun. 26, 2024 USD ($)	Jun. 26, 2024 CAD ($)	Dec. 18, 2023 USD ($)	Dec. 18, 2023 CAD ($) $ / shares	Dec. 31, 2024 USD ($)
Loans Receivable
Amount advances					$ 118.2
Skeena Convertible Debenture \| Loans receivable
Loans Receivable
Amount advances			$ 18.7	$ 25.0
Interest rate (in percent)			7.00%	7.00%	7.00%
Conversion price \| $ / shares				$ 7.7
Amount received	$ 18.9	$ 25.9
Interest revenue by contractual interest rate					$ 0.6