REVENUE - Metal Disaggregation (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Disaggregation of Revenue
Total revenue	$ 193,436	$ 148,902
Stream revenue:
Disaggregation of Revenue
Total revenue	122,482	102,528
Royalty revenue:
Disaggregation of Revenue
Total revenue	70,954	46,374
Gold | Stream revenue:
Disaggregation of Revenue
Total revenue	94,562	78,277
Gold | Royalty revenue:
Disaggregation of Revenue
Total revenue	51,164	33,496
Silver | Stream revenue:
Disaggregation of Revenue
Total revenue	18,699	14,747
Silver | Royalty revenue:
Disaggregation of Revenue
Total revenue	4,901	4,328
Copper | Stream revenue:
Disaggregation of Revenue
Total revenue	9,221	9,504
Copper | Royalty revenue:
Disaggregation of Revenue
Total revenue	7,591	3,621
Other | Royalty revenue:
Disaggregation of Revenue
Total revenue	$ 7,298	$ 4,929