Bankers acceptance period.

No definition available.

Name:	fnv_BankersAcceptancePeriod
Namespace Prefix:	fnv_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Period of time between issuance and maturity of debt instrument.

+ References

No definition available.

+ Details

Name:	fnv_BorrowingsTerm
Namespace Prefix:	fnv_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facilities without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

No definition available.

+ Details

Name:	fnv_IfrsLineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	fnv_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facilities without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility and the nominal or face amount of a financial instrument, used to calculate payments made on that instrument.

+ References

No definition available.

+ Details

Name:	fnv_LineOfCreditFacilityMaximumBorrowingCapacityAndNotionalAmount
Namespace Prefix:	fnv_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Represents the number of letter of credit.

+ References

No definition available.

+ Details

Name:	fnv_NumberOfLetterOfCredit
Namespace Prefix:	fnv_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

The cash outflow to settle Revolving credit facilities and borrowings, classified as financing activities. [Refer: Borrowings]

+ References

No definition available.

+ Details

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

- Definition

Stamping fee as a percent.

+ References

No definition available.

+ Details

Name:	fnv_StampingFeePercent
Namespace Prefix:	fnv_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The standby fee in percent.

+ References

No definition available.

+ Details

Name:	fnv_StandbyFeeInPercent
Namespace Prefix:	fnv_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of outstanding funds that the entity is obligated to repay.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2020-01-01
-Paragraph 55
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_55&doctype=Standard
-URIDate 2020-01-01

+ Details

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

- Definition

The adjustment to the basis (reference rate) used for calculation of the interest rate on borrowings. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 7
-IssueDate 2020-01-01
-Paragraph 7
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2020-en-r&anchor=para_7&doctype=Standard
-URIDate 2020-01-01

+ Details

Name:	ifrs-full_BorrowingsAdjustmentToInterestRateBasis
Namespace Prefix:	ifrs-full_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

+ References

No definition available.

+ Details

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

- Definition

The nominal or face amount of a financial instrument, used to calculate payments made on that instrument.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2020-01-01
-Paragraph 112
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_112_c&doctype=Standard
-URIDate 2020-01-01

+ Details

Name:	ifrs-full_NotionalAmount
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

- Definition

The cash inflow from borrowings obtained. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 7
-IssueDate 2020-01-01
-Paragraph 17
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2020-en-r&anchor=para_17_c&doctype=Standard
-URIDate 2020-01-01

+ Details

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

- Details

Name:	ifrs-full_BorrowingsByNameAxis=fnv_UnsecuredRevolvingTermCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

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

- Details

Name:	ifrs-full_TypesOfInterestRatesAxis=fnv_IfrsBaseRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_TypesOfInterestRatesAxis=fnv_OneTwoThreeOrSixMonthLiborMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_TypesOfInterestRatesAxis=fnv_IfrsPrimeRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BorrowingsByNameAxis=fnv_TermLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BorrowingsByNameAxis=fnv_FrancoNevadaBarbadosCorporationUnsecuredRevolvingTermCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BorrowingsByNameAxis=fnv_IfrsLetterOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Debt (Details) $ in Millions, $ in Millions		6 Months Ended	12 Months Ended
Debt (Details) $ in Millions, $ in Millions	Mar. 20, 2017 USD ($)	Jun. 30, 2021 USD ($) LetterOfCredit	Dec. 31, 2020 USD ($)	Jun. 30, 2021 CAD ($)
Revolving term credit facility
Size of facility		$ 1,260.0
Balance, beginning of year			$ 80.0
Drawdowns		150.0
Repayment		(150.0)	(80.0)
Credit Facility
Revolving term credit facility
Size of facility		1,000.0
Drawdowns		150.0
Repayment		(150.0)
Maximum borrowing capacity		$ 1,000.0
Credit Facility \| Bottom
Revolving term credit facility
Bankers acceptance period under credit facility		30 days
Stamping fee (as a percent)		1.00%
Standby fee (as a percent)		0.20%
Credit Facility \| Top
Revolving term credit facility
Bankers acceptance period under credit facility		180 days
Stamping fee (as a percent)		2.05%
Standby fee (as a percent)		0.41%
Credit Facility \| CIBC \| Bottom
Revolving term credit facility
Spread on variable rate (as a percent)		0.00%		0.00%
Credit Facility \| CIBC \| Top
Revolving term credit facility
Spread on variable rate (as a percent)		1.05%		1.05%
Credit Facility \| LIBOR \| Bottom
Revolving term credit facility
Spread on variable rate (as a percent)		1.00%		1.00%
Credit Facility \| LIBOR \| Top
Revolving term credit facility
Spread on variable rate (as a percent)		2.05%		2.05%
Credit Facility \| Prime rate \| Bottom
Revolving term credit facility
Spread on variable rate (as a percent)		0.00%		0.00%
Credit Facility \| Prime rate \| Top
Revolving term credit facility
Spread on variable rate (as a percent)		1.05%		1.05%
Term Loan
Revolving term credit facility
Balance, beginning of year			80.0
Repayment			$ (80.0)
Borrowed amount		$ 160.0
FNBC Credit Facility
Revolving term credit facility
Maturity period	1 year
Maximum borrowing capacity	$ 100.0	$ 100.0
Standby fee (as a percent)		0.25%
FNBC Credit Facility \| CIBC
Revolving term credit facility
Spread on variable rate (as a percent)		0.25%		0.25%
FNBC Credit Facility \| LIBOR
Revolving term credit facility
Spread on variable rate (as a percent)		1.25%		1.25%
Letter of credit
Revolving term credit facility
Maximum borrowing capacity		$ 18.9		$ 23.1
Number of letter of credit \| LetterOfCredit		2