STREAM AND ROYALTY INTERESTS, NET - Summary (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Cost	$ 4,875,802	$ 3,899,867
Accumulated Depletion	(1,634,113)	(1,456,115)
Impairments	(4,287)
Net	3,237,402	2,443,752
Production stage stream and royalty interests
Cost	3,668,825	3,369,499
Accumulated Depletion	(1,634,113)	(1,456,115)
Net	2,034,712	1,913,384
Production stage stream interests
Cost	2,446,435	2,419,936
Accumulated Depletion	(1,022,428)	(878,902)
Net	1,424,007	1,541,034
Production stage stream interests | Mt. Milligan
Cost	790,635	790,635
Accumulated Depletion	(392,804)	(336,921)
Net	397,831	453,714
Production stage stream interests | Pueblo Viejo
Cost	610,404	610,405
Accumulated Depletion	(289,537)	(260,321)
Net	320,867	350,084
Production stage stream interests | Andacollo
Cost	388,182	388,182
Accumulated Depletion	(151,870)	(139,035)
Net	236,312	249,147
Production stage stream interests | Khoemacau
Cost	265,911	239,411
Accumulated Depletion	(15,905)	(3,402)
Net	250,006	236,009
Production stage stream interests | Rainy River
Cost	175,727	175,727
Accumulated Depletion	(61,601)	(50,115)
Net	114,126	125,612
Production stage stream interests | Other.
Cost	215,576	215,576
Accumulated Depletion	(110,711)	(89,108)
Net	104,865	126,468
Production stage royalty interests
Cost	1,222,390	949,563
Accumulated Depletion	(611,685)	(577,213)
Net	610,705	372,350
Production stage royalty interests | Voisey's Bay
Cost	205,724	205,724
Accumulated Depletion	(118,327)	(113,602)
Net	87,397	92,122
Production stage royalty interests | Red Chris
Cost	116,187	116,187
Accumulated Depletion	(1,797)
Net	114,390	116,187
Production stage royalty interests | Penasquito
Cost	99,172	99,172
Accumulated Depletion	(57,772)	(53,022)
Net	41,400	46,150
Production stage royalty interests | Cortez
Cost	353,772	80,681
Accumulated Depletion	(35,276)	(23,225)
Net	318,496	57,456
Production stage royalty interests | Other.
Cost	447,535	447,799
Accumulated Depletion	(398,513)	(387,364)
Net	49,022	60,435
Development stage stream and royalty interests
Cost	131,684	112,213
Net	131,684	112,213
Development stage stream interests | Other.
Cost	12,038	12,037
Net	12,038	12,037
Development stage royalty interests | Cote
Cost	45,421	45,421
Net	45,421	45,421
Development stage royalty interests | Other.
Cost	74,225	54,755
Net	74,225	54,755
Exploration stage stream and royalty interests
Cost	1,075,293
Impairments	(4,287)
Net	1,071,006
Exploration stage stream interests | Xavantina (formerly NX Gold)
Cost	34,253	30,974
Net	34,253	30,974
Exploration stage royalty interests
Cost		418,155
Net		418,155
Exploration stage royalty interests | Red Chris
Cost	48,895	48,895
Net	48,895	48,895
Exploration stage royalty interests | Cortez
Cost	456,318
Net	456,318
Exploration stage royalty interests | Great Bear
Cost	209,106
Net	209,106
Exploration stage royalty interests | Pascua - Lama
Cost	177,690	177,690
Net	177,690	177,690
Exploration stage royalty interests | Cote
Cost	29,610	29,610
Net	29,610	29,610
Exploration stage royalty interests | Other.
Cost	119,421	130,986
Impairments	(4,287)
Net	$ 115,134	$ 130,986