Costs of Sales (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023
Costs of Sales
Costs of stream sales	$ 114.3	$ 164.5
Mineral production taxes	2.5	2.1
Mining costs of sales	116.8	166.6
Energy costs of sales	12.2	12.7
Total costs of sales	$ 129.0	$ 179.3

The amount of costs relating to expenses directly or indirectly attributed to the goods or services sold, which may include, but are not limited to, costs previously included in the measurement of inventory that has now been sold, unallocated production overheads and abnormal amounts of production costs of inventories but excluding depletion and depreciation expense.

No definition available.

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