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Material Accounting Policy Information - Subsidiaries (Details)
12 Months Ended
Dec. 31, 2023
Franco-Nevada U.S. Corporation  
Disclosure of subsidiaries [line items]  
Economic Interests (as a percent) 100.00%
Franco-Nevada (Barbados) Corporation  
Disclosure of subsidiaries [line items]  
Economic Interests (as a percent) 100.00%
Franco-Nevada Australia Pty Ltd  
Disclosure of subsidiaries [line items]  
Economic Interests (as a percent) 100.00%
Franco-Nevada Delaware LLC  
Disclosure of subsidiaries [line items]  
Economic Interests (as a percent) 100.00%
Franco-Nevada Texas LP  
Disclosure of subsidiaries [line items]  
Economic Interests (as a percent) 100.00%
Minera Global Copper Chile S.A.  
Disclosure of subsidiaries [line items]  
Economic Interests (as a percent) 100.00%
The Mineral Resource Company II, LLC  
Disclosure of subsidiaries [line items]  
Economic Interests (as a percent) 49.90%
Funding basis (as a percent) 80.00%