Deferred revenue - Inputs in model to unwind deferred revenue (Details) $ in Millions	12 Months Ended
Dec. 31, 2025 USD ($) oz	Dec. 19, 2024 USD ($)
Wheaton Precious Metals International
Disclosure Of Contract Liabilities [Line Items]
Remaining life	66 years
Monthly cash percentage	18.00%
Leverage ratio threshold	3.5
Monthly deferred revenue percentage	82.00%
Price averaging period	5 days
Wheaton Precious Metals International \| Platinum
Disclosure Of Contract Liabilities [Line Items]
Entitlement percentage	4.50%
Wheaton Precious Metals International \| Gold
Disclosure Of Contract Liabilities [Line Items]
Entitlement percentage	100.00%
Wheaton Precious Metals International \| Lowest range of product delivery \| Platinum
Disclosure Of Contract Liabilities [Line Items]
Entitlement percentage	4.50%
Wheaton Precious Metals International \| Middle range of product delivery \| Platinum
Disclosure Of Contract Liabilities [Line Items]
Entitlement percentage	2.25%
Wheaton Precious Metals International \| High range of product delivery \| Platinum
Disclosure Of Contract Liabilities [Line Items]
Entitlement percentage	1.00%
Wheaton Precious Metals International \| Advance fully utilised
Disclosure Of Contract Liabilities [Line Items]
Monthly cash percentage, 1st level	22.00%
Monthly cash percentage, 2nd level	20.00%
Monthly cash percentage, 3rd level	18.00%
Monthly cash percentage, 4th level	14.00%
Wheaton Precious Metals International \| Advance not fully utilised
Disclosure Of Contract Liabilities [Line Items]
Monthly cash percentage, 1st level	18.00%
Monthly cash percentage, 2nd level	16.00%
Monthly cash percentage, 3rd level	14.00%
Monthly cash percentage, 4th level	10.00%
Wheaton Precious Metals International \| Minimum
Disclosure Of Contract Liabilities [Line Items]
Estimated financing rate	4.60%
Wheaton Precious Metals International \| Minimum \| Middle range of product delivery \| Platinum
Disclosure Of Contract Liabilities [Line Items]
Number of ounces delivered (in oz)	375,000
Wheaton Precious Metals International \| Minimum \| High range of product delivery \| Platinum
Disclosure Of Contract Liabilities [Line Items]
Number of ounces delivered (in oz)	550,000
Wheaton Precious Metals International \| Maximum
Disclosure Of Contract Liabilities [Line Items]
Estimated financing rate	5.20%
Franco-Nevada stream
Disclosure Of Contract Liabilities [Line Items]
Estimated financing rate	8.76%
Monthly cash percentage	5.00%
Stream arrangement, contract commitment \| $		$ 500
Threshold for covenant reduction \| $	$ 600
Franco-Nevada stream \| Marikana
Disclosure Of Contract Liabilities [Line Items]
Remaining life	84 years
Franco-Nevada stream \| Rutenburg
Disclosure Of Contract Liabilities [Line Items]
Remaining life	106 years
Franco-Nevada stream \| Platinum
Disclosure Of Contract Liabilities [Line Items]
Entitlement percentage	1.00%
Monthly cash percentage	5.00%
Allocation of stream between commodities over the expected life of the arrangement	0.31
Franco-Nevada stream \| Gold
Disclosure Of Contract Liabilities [Line Items]
Entitlement percentage	1.10%
Entitlement percentage, after reaching threshold	80.00%
Allocation of stream between commodities over the expected life of the arrangement	0.69
Franco-Nevada stream \| Lowest range of product delivery \| Platinum
Disclosure Of Contract Liabilities [Line Items]
Entitlement percentage	1.00%
Number of ounces delivered (in oz)	48,000
Franco-Nevada stream \| Lowest range of product delivery \| Gold
Disclosure Of Contract Liabilities [Line Items]
Entitlement percentage	1.10%
Number of ounces delivered (in oz)	237,000
Monthly cash percentage	5.00%
Franco-Nevada stream \| High range of product delivery \| Platinum
Disclosure Of Contract Liabilities [Line Items]
Entitlement percentage	2.10%
Number of ounces delivered (in oz)	294,000
Franco-Nevada stream \| High range of product delivery \| Gold
Disclosure Of Contract Liabilities [Line Items]
Entitlement percentage	0.75%
Monthly cash percentage	10.00%
Franco-Nevada stream \| Minimum \| Lowest range of product delivery \| Gold
Disclosure Of Contract Liabilities [Line Items]
Number of ounces delivered (in oz)	87,500
Franco-Nevada stream \| Minimum \| High range of product delivery \| Gold
Disclosure Of Contract Liabilities [Line Items]
Number of ounces delivered (in oz)	237,000

The monthly cash percentage decreases if the entity's leverage ratio exceeds this amount.

No definition available.

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- Definition

The monthly cash payment received percentage, first level, which is a key input in model used to value contract liability. Different percentages apply depending on utilisation of the advance, the investment grade of the entity and its leverage ratio.

+ References

No definition available.

+ Details

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- Definition

The monthly cash payment received percentage, fourth level, which is a key input in model used to value contract liability. Different percentages apply depending on utilisation of the advance, the investment grade of the entity and its leverage ratio.

+ References

No definition available.

+ Details

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- Definition

The monthly cash payment received percentage, second level, which is a key input in model used to value contract liability. Different percentages apply depending on utilisation of the advance, the investment grade of the entity and its leverage ratio.

+ References

No definition available.

+ Details

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- Definition

The monthly cash payment received percentage, third level, which is a key input in model used to value contract liability. Different percentages apply depending on utilisation of the advance, the investment grade of the entity and its leverage ratio.

+ References

No definition available.

+ Details

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- Definition

The monthly deferred revenue percentage, which is a key input in model used to value contract liability.

+ References

No definition available.

+ Details

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- Definition

The period over which the commodity price is averaged when serving as an input in model used to value contract liability.

+ References

No definition available.

+ Details

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- Definition

Covanent Reduction Date, Threshold For

+ References

No definition available.

+ Details

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- 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.

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- Definition

Discount Rate

+ References

No definition available.

+ Details

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Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The number of contractual ounces of product delivered, which is a factor in determination of the entitlement percentage.

+ References

No definition available.

+ Details

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- Definition

The percent of production that is covered by the streaming agreement.

+ References

No definition available.

+ Details

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- Definition

Percent Of Production Covered By Streaming Agreement, After Reaching Threshold

+ References

No definition available.

+ Details

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- Definition

Percentage Of Allocation Between Two Streams

+ References

No definition available.

+ Details

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Data Type:	xbrli:pureItemType
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- Definition

Stream Arrangement, Prepayment

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The additional amounts to be received monthly under the streaming arrangement, as a percentage based on the value of deliveries.

+ References

No definition available.

+ Details

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Data Type:	dtr-types1:percentItemType
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Period Type:	duration

- Definition

The estimated expected life of the revenue stream.

+ References

No definition available.

+ Details

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