STREAM AND ROYALTY INTERESTS, NET - Summary (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Cost	$ 4,985,510	$ 4,874,194
Accumulated Depletion	(1,942,706)	(1,798,620)
Net	3,042,804	3,075,574
Production stage stream and royalty interests
Cost	3,767,113	3,687,394
Accumulated Depletion	(1,942,706)	(1,798,620)
Net	1,824,407	1,888,774
Production stage stream interests
Cost	2,472,689	2,463,562
Accumulated Depletion	(1,246,349)	(1,143,549)
Net	1,226,340	1,320,013
Production stage stream interests | Mt. Milligan
Cost	790,635	790,635
Accumulated Depletion	(462,412)	(430,106)
Net	328,223	360,529
Production stage stream interests | Pueblo Viejo
Cost	610,404	610,404
Accumulated Depletion	(308,283)	(299,354)
Net	302,121	311,050
Production stage stream interests | Andacollo
Cost	388,182	388,182
Accumulated Depletion	(177,059)	(165,553)
Net	211,123	222,629
Production stage stream interests | Khoemacau
Cost	265,911	265,911
Accumulated Depletion	(58,043)	(41,635)
Net	207,868	224,276
Production stage stream interests | Rainy River
Cost	175,727	175,727
Accumulated Depletion	(86,307)	(74,858)
Net	89,420	100,869
Production stage stream interests | Other interest
Cost	241,830	232,703
Accumulated Depletion	(154,245)	(132,043)
Net	87,585	100,660
Production stage royalty interests
Cost	1,294,424	1,223,832
Accumulated Depletion	(696,357)	(655,071)
Net	598,067	568,761
Production stage royalty interests | Cortez
Cost	353,850	353,850
Accumulated Depletion	(81,845)	(61,891)
Net	272,005	291,959
Production stage royalty interests | Voisey's Bay
Cost	205,724	205,724
Accumulated Depletion	(124,526)	(121,000)
Net	81,198	84,724
Production stage royalty interests | Red Chris
Cost	116,187	116,187
Accumulated Depletion	(5,966)	(3,758)
Net	110,221	112,429
Production stage royalty interests | Penasquito
Cost	99,172	99,172
Accumulated Depletion	(65,372)	(59,900)
Net	33,800	39,272
Production stage royalty interests | Other interest
Cost	519,491	448,899
Accumulated Depletion	(418,648)	(408,522)
Net	100,843	40,377
Development stage stream and royalty interests
Cost	166,387	138,591
Net	166,387	138,591
Development stage stream interests | Ilovica
Cost	12,038	12,038
Net	12,038	12,038
Development stage royalty interests | Cactus
Cost	55,128
Net	55,128
Development stage royalty interests | Back River
Cost	42,948
Net	42,948
Development stage royalty interests | La Fortuna
Cost	35,140	35,140
Net	35,140	35,140
Development stage royalty interests | Cote
Cost		45,421
Net		45,421
Development stage royalty interests | Other interest
Cost	21,133	45,992
Net	21,133	45,992
Exploration stage stream and royalty interests
Cost	1,052,010
Net	1,052,010
Exploration stage stream interests | Xavantina (formerly NX Gold)
Cost	14,792	19,565
Net	14,792	19,565
Exploration stage royalty interests
Cost		1,048,209
Net		1,048,209
Exploration stage royalty interests | Cortez
Cost	456,479	456,479
Net	456,479	456,479
Exploration stage royalty interests | Red Chris
Cost	48,895	48,895
Net	48,895	48,895
Exploration stage royalty interests | Cote
Cost	29,610	29,610
Net	29,610	29,610
Exploration stage royalty interests | Great Bear
Cost	209,106	209,106
Net	209,106	209,106
Exploration stage royalty interests | Pascua - Lama
Cost	177,690	177,690
Net	177,690	177,690
Exploration stage royalty interests | Other interest
Cost	115,438	106,864
Net	$ 115,438	$ 106,864