Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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REVENUE - Property Disaggregation (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Disaggregation of Revenue
Total revenue	$ 209,643	$ 174,096	$ 403,080	$ 322,999
Stream interest
Disaggregation of Revenue
Total revenue	133,191	122,952	255,673	225,481
Stream interest \| Mount Milligan
Disaggregation of Revenue
Total revenue	63,655	52,139	106,463	87,134
Stream interest \| Pueblo Viejo
Disaggregation of Revenue
Total revenue	25,619	19,801	54,369	37,562
Stream interest \| Andacollo
Disaggregation of Revenue
Total revenue	9,489	10,608	22,234	22,297
Stream interest \| Other
Disaggregation of Revenue
Total revenue	34,428	40,404	72,607	78,488
Royalty revenue:
Disaggregation of Revenue
Total revenue	76,452	51,144	147,407	97,518
Royalty revenue: \| Other
Disaggregation of Revenue
Total revenue	59,856	35,382	116,115	63,980
Royalty revenue: \| Cortez Legacy Zone
Disaggregation of Revenue
Total revenue	8,508	11,214	19,650	24,579
Royalty revenue: \| Cortez CC Zone
Disaggregation of Revenue
Total revenue	$ 8,088	$ 4,548	$ 11,642	$ 8,959