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Material Accounting Policy Information - Working Interests in Energy Properties and Impairment of Financial Assets (Details) | 12 Months Ended
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Dec. 31, 2024 item
Disclosure of subsidiaries [line items] |
Oil and gas well equipment declining depreciation rate | 25.00%
Amortized cost |
Disclosure of subsidiaries [line items] |
Number of loans receivable | 2

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- Definition Number of loans receivable. + References No definition available. + Details
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Namespace Prefix: | fnv_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Definition The percentage of declining balance depreciation method for oil and gas well equipment. + References No definition available. + Details
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Namespace Prefix: | fnv_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

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

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- Details
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