The fair value, at acquisition date, of consideration in an acquisition before adjustment.

No definition available.

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

- Definition

The fair value, at acquisition date, of the consideration transferred in a acquisition for the first part of the portfolio.

+ References

No definition available.

+ Details

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

- Definition

The fair value, at acquisition date, of the consideration transferred in a business combination for shares and warrants acquired.

+ References

No definition available.

+ Details

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

- Definition

Represents the number of additional exploration tenements.

+ References

No definition available.

+ Details

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

- Definition

Represents the indirect interest held by Korea Resources Corp.

+ References

No definition available.

+ Details

Name:	fnv_AcquisitionIndirectInterestHeldByKoreaResourcesCorp
Namespace Prefix:	fnv_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the shares received in exchange in asset acquisition.

+ References

No definition available.

+ Details

Name:	fnv_AcquisitionSharesReceivedInExchange
Namespace Prefix:	fnv_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The amount funded by the company.

+ References

No definition available.

+ Details

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

- Definition

Represents the gain (loss) recognized in the asset acquisition share exchange.

+ References

No definition available.

+ Details

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

- Definition

Represents the number of shares held by the Company in asset acquisition.

+ References

No definition available.

+ Details

Name:	fnv_AssetAcquisitionShareHeld
Namespace Prefix:	fnv_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the number of warrants held by the Company i asset acquisition.

+ References

No definition available.

+ Details

Name:	fnv_AssetAcquisitionWarrantsHeld
Namespace Prefix:	fnv_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the capitalized costs for the project.

+ References

No definition available.

+ Details

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

- Definition

Number of common shares purchased of acquired assets

+ References

No definition available.

+ Details

Name:	fnv_CommonSharesPurchased
Namespace Prefix:	fnv_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Initial number of tonnes of copper in concentrate per quantity of payable gold ounces to be purchased.

+ References

No definition available.

+ Details

Name:	fnv_CopperInConcentratePerGoldOuncesToPurchaseInitial
Namespace Prefix:	fnv_
Data Type:	num:massItemType
Balance Type:	na
Period Type:	instant

- Definition

Cumulative amount funded by the company.

+ References

No definition available.

+ Details

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

- Definition

Represents the deposit funded on a pro-rata basis.

+ References

No definition available.

+ Details

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

- Definition

Represents the deposit provided to acquiree.

+ References

No definition available.

+ Details

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

- Definition

Exercise period of warrant held.

+ References

No definition available.

+ Details

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

- Definition

Exercise price of warrants held.

+ References

No definition available.

+ Details

Name:	fnv_ExercisePriceWarrantsHeld
Namespace Prefix:	fnv_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Definition

The gold and silver purchase price upon delivery threshold 2 percent.

+ References

No definition available.

+ Details

Name:	fnv_GoldAndSilverPurchasePriceUponDeliveryThreshold2Percent
Namespace Prefix:	fnv_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Initial number of payable gold ounces to be purchased per quantity of tonnes of copper in concentrate.

+ References

No definition available.

+ Details

Name:	fnv_GoldOuncesToPurchasePerCopperConcentrateInitial
Namespace Prefix:	fnv_
Data Type:	num:massItemType
Balance Type:	na
Period Type:	instant

- Definition

Maximum amount of funding that can be increased.

+ References

No definition available.

+ Details

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

- Definition

Represents the number of common share that each warrant can exercise.

+ References

No definition available.

+ Details

Name:	fnv_NumberOfCommonShareThatEachWarrantCanExercise
Namespace Prefix:	fnv_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The number of primary operators of lands.

+ References

No definition available.

+ Details

Name:	fnv_NumberOfPrimaryOperatorsOfLands
Namespace Prefix:	fnv_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Definition

Quantity of delivered gold ounces before payable production to be purchased decreases to next threshold from initial threshold.

+ References

No definition available.

+ Details

Name:	fnv_OuncesOfGoldDeliveredUnderInitialThresholdBeforeCommittedQuantitiesReduces
Namespace Prefix:	fnv_
Data Type:	num:massItemType
Balance Type:	na
Period Type:	instant

- Definition

Quantity of delivered gold ounces before payable production to be purchased decreases to next threshold from Threshold 2.

+ References

No definition available.

+ Details

Name:	fnv_OuncesOfGoldDeliveredUnderThreshold2BeforeCommittedQuantitiesReduces
Namespace Prefix:	fnv_
Data Type:	num:massItemType
Balance Type:	na
Period Type:	instant

- Definition

Quantity of delivered silver ounces before payable production to be purchased decreases to next threshold from initial threshold.

+ References

No definition available.

+ Details

Name:	fnv_OuncesOfSilverDeliveredUnderInitialThresholdBeforeCommittedQuantitiesReduces
Namespace Prefix:	fnv_
Data Type:	num:massItemType
Balance Type:	na
Period Type:	instant

- Definition

Quantity of delivered Silver ounces before payable production to be purchased decreases to next threshold from Threshold 2.

+ References

No definition available.

+ Details

Name:	fnv_OuncesOfSilverDeliveredUnderThreshold2BeforeCommittedQuantitiesReduces
Namespace Prefix:	fnv_
Data Type:	num:massItemType
Balance Type:	na
Period Type:	instant

- Definition

Percent of payable Gold and Silver production to be purchased after a certain quantity of Silver is initially delivered under Threshold 1.

+ References

No definition available.

+ Details

Name:	fnv_PercentGoldAndSilverProductionToPurchaseThreshold2
Namespace Prefix:	fnv_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percent of payable Gold and Silver production to be purchased after a certain quantity of Silver is initially delivered under Threshold 2.

+ References

No definition available.

+ Details

Name:	fnv_PercentGoldAndSilverProductionToPurchaseThreshold3
Namespace Prefix:	fnv_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the percentage of first quantum's share of the capital costs.

+ References

No definition available.

+ Details

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

- Definition

The percentage of Gross Overriding Royalty acquired.

+ References

No definition available.

+ Details

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

- Definition

The percentage of NSR.

+ References

No definition available.

+ Details

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

- Definition

The royalty rate percent.

+ References

No definition available.

+ Details

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

- Definition

Represents the royalty rate per Tonne.

+ References

No definition available.

+ Details

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

- Definition

Initial number of payable silver ounces to be purchased per quantity of tonnes of copper in concentrate

+ References

No definition available.

+ Details

Name:	fnv_SilverOuncesToPurchasePerCopperConcentrateInitial
Namespace Prefix:	fnv_
Data Type:	num:massItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of warrants held common shares.

+ References

No definition available.

+ Details

Name:	fnv_WarrantsHeldCommonShares
Namespace Prefix:	fnv_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The fair value, at acquisition date, of the consideration transferred in a business combination. [Refer: Business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 3
-IssueDate 2017-01-01
-Paragraph B64
-Subparagraph f
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=3&date=2017-03-01&anchor=para_B64_f&doctype=Appendix&seq=2
-URIDate 2017-03-09

+ Details

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

- Definition

The fair value, at acquisition date, of cash transferred as consideration in a business combination. [Refer: Business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 3
-IssueDate 2017-01-01
-Paragraph B64
-Subparagraph f
-Clause i
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=3&date=2017-03-01&anchor=para_B64_f_i&doctype=Appendix&seq=2
-URIDate 2017-03-09

+ Details

Name:	ifrs-full_CashTransferred
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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_DisclosureOfBusinessCombinationsLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	ifrs-full_BusinessCombinationsAxis=fnv_BowenBasinCoalRoyaltiesAustraliaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_NonadjustingEventsAfterReportingPeriodAxis=fnv_AssetAcquisitionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BusinessCombinationsAxis=fnv_CobrePanamaTrancheTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BusinessCombinationsAxis=fnv_USOilGasRoyaltiesAcquisitionDelawareTexasMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BusinessCombinationsAxis=fnv_StackMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BusinessCombinationsAxis=fnv_CanadianOilGasRoyaltiesAcquisitionOrionThermalProjectAlbertaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BusinessCombinationsAxis=fnv_RailroadRoyaltyCarlinTrendNevadaAcquisitionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BusinessCombinationsAxis=fnv_U.s.OilGasRoyaltiesAcquisitionMidlandBasinMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BusinessCombinationsAxis=fnv_CastleMountainMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BusinessCombinationsAxis=fnv_AntapaccayMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Acquisitions and other transactions (Details) $ in Millions, $ in Millions							12 Months Ended
	Feb. 28, 2018 AUD ($) item	Dec. 22, 2017 USD ($) shares	Sep. 29, 2017 CAD ($)	May 26, 2017 USD ($)	Jun. 16, 2016 CAD ($) $ / shares shares	Feb. 26, 2016 USD ($) oz	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Mar. 01, 2018 USD ($)	Feb. 28, 2018 USD ($)	Jan. 22, 2018 USD ($)	Dec. 19, 2017 USD ($) item	Nov. 01, 2017 USD ($)	Sep. 29, 2017 USD ($)	Sep. 07, 2017 USD ($)	Mar. 13, 2017 USD ($)
Bowen Basin Coal Royalties, Australia \| Asset acquisition subsequent to year-end
Acquisitions
Number of additional exploration tenements \| item	33
Cash transferred	$ 4,200,000
Royalty rate per tonne	$ 0.10
Cobre Panama Tranche Two
Acquisitions
Consideration transferred															$ 178.0
Deposit provided to acquiree							$ 1,000.0
Deposit funded on a pro-rata basis							33.33%
Percentage of first quantum's share of the capital costs							80.00%
Amount funded by the company							$ 264.4	$ 124.3
Cumulative amount funded by the company							726.6	462.2
Maximum amount of funding that can be increased							1,000.0
Capitalized costs for the project							734.4	$ 467.5
Cobre Panama Tranche Two \| Asset acquisition subsequent to year-end
Acquisitions
Consideration transferred									$ 356.0		$ 356.0
Indirect interest held by Korea Resources Corp.											10.00%
U.S. Oil & Gas Royalties - Delaware Texas
Acquisitions
Deposit provided to acquiree							$ 11.0
U.S. Oil & Gas Royalties - Delaware Texas \| Asset acquisition subsequent to year-end
Acquisitions
Consideration transferred										$ 101.3
U.S. Oil & Gas Royalties - STACK, Oklahoma
Acquisitions
Consideration transferred												$ 100.0	$ 27.6
Number of primary operators of lands \| item												2
Canadian Oil & Gas Royalties - Orion Thermal Project, Alberta
Acquisitions
Percentage of GORR acquired			4.00%
Cash transferred			$ 92.5											$ 74.1
Railroad Royalty - Carlin Trend, Nevada
Acquisitions
Percentage of NSR				1.00%
Cash transferred				$ 0.9
U.S. Oil & Gas Royalties - Midland Basin
Acquisitions
Consideration transferred before adjustment																$ 110.0
Consideration transferred first part portfolio																89.8
Consideration transferred																$ 114.6
Castle Mountain, California
Acquisitions
Consideration transferred					$ 2.2
Royalty rate					2.65%
Common shares purchased \| shares					3,636,364
Warrants held common shares \| shares					1,818,182
Consideration transferred for common shares and warrants					$ 1.2
Number of common share, each warrant can exercise \| shares					1
Exercise price of warrants held \| $ / shares					0.64
Exercise period					5 years
Share received in exchange \| shares		0.873
Gain from share exchange		$ 1.5
Shares held by company \| shares		3,174,545
Warrants held by the company \| shares		1,587,272
Antapaccay, Peru
Acquisitions
Consideration transferred						$ 500.0
Ounces of gold receivable for each 1,000 tonnes of copper \| oz						300
Copper for 300 ounces of gold and 4,700 ounces of silver \| oz						1,000
Quantity of delivered gold ounces before payable production to be purchased decreases to next threshold from initial threshold \| oz						630,000
Ounces of silver receivable for each 1,l000 tonnes of copper \| oz						4,700
Maximum ounces of silver receivable \| oz						10,000,000
Percentage of gold and silver receivable						30.00%
Percentage of spot price of gold and silver on which on-going price is paid						20.00%
Maximum ounces of gold on which on-going price of spot price is payable \| oz						750,000
Maximum ounces of silver on which on-going price of spot price is payable \| oz						12,800,000
Percentage of spot price of gold and silver on which on-going price is paid after maximum ounces have been delivered						30.00%