REVENUE - Schedule of Metal Disaggregation (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Disaggregation of Revenue
Total revenue	$ 469,125	$ 193,436
Stream revenue:
Disaggregation of Revenue
Total revenue	312,777	122,482
Royalty revenue:
Disaggregation of Revenue
Total revenue	156,348	70,954
Gold | Stream revenue:
Disaggregation of Revenue
Total revenue	236,446	94,562
Gold | Royalty revenue:
Disaggregation of Revenue
Total revenue	97,462	51,164
Silver | Stream revenue:
Disaggregation of Revenue
Total revenue	52,734	18,699
Silver | Royalty revenue:
Disaggregation of Revenue
Total revenue	20,279	4,901
Copper | Stream revenue:
Disaggregation of Revenue
Total revenue	21,699	9,221
Copper | Royalty revenue:
Disaggregation of Revenue
Total revenue	24,971	7,591
Other | Stream revenue:
Disaggregation of Revenue
Total revenue	1,898	0
Other | Royalty revenue:
Disaggregation of Revenue
Total revenue	$ 13,636	$ 7,298