STREAM AND ROYALTY INTERESTS, NET - Summary (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Capitalized Costs of Unproved Properties Excluded from Amortization [Line Items]
Cost	$ 4,875,799	$ 4,874,194
Accumulated Depletion	(1,837,304)	(1,798,620)
Net	3,038,495	3,075,574
Total production stage stream and royalty interests
Capitalized Costs of Unproved Properties Excluded from Amortization [Line Items]
Cost	3,691,750	3,687,394
Accumulated Depletion	(1,837,304)	(1,798,620)
Net	1,854,446	1,888,774
Total production stage stream interests
Capitalized Costs of Unproved Properties Excluded from Amortization [Line Items]
Cost	2,467,918	2,463,562
Accumulated Depletion	(1,170,950)	(1,143,549)
Net	1,296,968	1,320,013
Total production stage stream interests | Mount Milligan
Capitalized Costs of Unproved Properties Excluded from Amortization [Line Items]
Cost	790,635	790,635
Accumulated Depletion	(437,053)	(430,106)
Net	353,582	360,529
Total production stage stream interests | Pueblo Viejo
Capitalized Costs of Unproved Properties Excluded from Amortization [Line Items]
Cost	610,404	610,404
Accumulated Depletion	(301,590)	(299,354)
Net	308,814	311,050
Total production stage stream interests | Andacollo
Capitalized Costs of Unproved Properties Excluded from Amortization [Line Items]
Cost	388,182	388,182
Accumulated Depletion	(168,789)	(165,553)
Net	219,393	222,629
Total production stage stream interests | Khoemacau
Capitalized Costs of Unproved Properties Excluded from Amortization [Line Items]
Cost	265,911	265,911
Accumulated Depletion	(47,415)	(41,635)
Net	218,496	224,276
Total production stage stream interests | Rainy River
Capitalized Costs of Unproved Properties Excluded from Amortization [Line Items]
Cost	175,727	175,727
Accumulated Depletion	(77,698)	(74,858)
Net	98,029	100,869
Total production stage stream interests | Other
Capitalized Costs of Unproved Properties Excluded from Amortization [Line Items]
Cost	237,059	232,703
Accumulated Depletion	(138,405)	(132,043)
Net	98,654	100,660
Total production stage royalty interests
Capitalized Costs of Unproved Properties Excluded from Amortization [Line Items]
Cost	1,223,832	1,223,832
Accumulated Depletion	(666,354)	(655,071)
Net	557,478	568,761
Total production stage royalty interests | Cortez (Legacy Zone and CC Zone)
Capitalized Costs of Unproved Properties Excluded from Amortization [Line Items]
Cost	353,850	353,850
Accumulated Depletion	(67,166)	(61,891)
Net	286,684	291,959
Total production stage royalty interests | Voisey's Bay
Capitalized Costs of Unproved Properties Excluded from Amortization [Line Items]
Cost	205,724	205,724
Accumulated Depletion	(121,664)	(121,000)
Net	84,060	84,724
Total production stage royalty interests | Red Chris
Capitalized Costs of Unproved Properties Excluded from Amortization [Line Items]
Cost	116,187	116,187
Accumulated Depletion	(5,966)	(3,758)
Net	110,221	112,429
Total production stage royalty interests | Peñasquito
Capitalized Costs of Unproved Properties Excluded from Amortization [Line Items]
Cost	99,172	99,172
Accumulated Depletion	(61,240)	(59,900)
Net	37,932	39,272
Total production stage royalty interests | Other
Capitalized Costs of Unproved Properties Excluded from Amortization [Line Items]
Cost	448,899	448,899
Accumulated Depletion	(410,318)	(408,522)
Net	38,581	40,377
Total development stage stream and royalty interests
Capitalized Costs of Unproved Properties Excluded from Amortization [Line Items]
Cost	140,183	138,591
Net	140,183	138,591
Development stage stream interests | Other
Capitalized Costs of Unproved Properties Excluded from Amortization [Line Items]
Cost	12,038	12,038
Net	12,038	12,038
Development stage royalty interests | Côté
Capitalized Costs of Unproved Properties Excluded from Amortization [Line Items]
Cost	45,421	45,421
Net	45,421	45,421
Development stage royalty interests | La Fortuna
Capitalized Costs of Unproved Properties Excluded from Amortization [Line Items]
Cost	35,140	35,140
Net	35,140	35,140
Development stage royalty interests | Other
Capitalized Costs of Unproved Properties Excluded from Amortization [Line Items]
Cost	47,584	45,992
Net	47,584	45,992
Total exploration stage stream and royalty interests
Capitalized Costs of Unproved Properties Excluded from Amortization [Line Items]
Cost	1,043,866	1,048,209
Net	1,043,866	1,048,209
Exploration stage stream interests | Xavantina
Capitalized Costs of Unproved Properties Excluded from Amortization [Line Items]
Cost	16,313	19,565
Net	16,313	19,565
Exploration stage royalty interests | Cortez (Legacy Zone and CC Zone)
Capitalized Costs of Unproved Properties Excluded from Amortization [Line Items]
Cost	456,479	456,479
Net	456,479	456,479
Exploration stage royalty interests | Red Chris
Capitalized Costs of Unproved Properties Excluded from Amortization [Line Items]
Cost	48,895	48,895
Net	48,895	48,895
Exploration stage royalty interests | Côté
Capitalized Costs of Unproved Properties Excluded from Amortization [Line Items]
Cost	29,610	29,610
Net	29,610	29,610
Exploration stage royalty interests | Great Bear
Capitalized Costs of Unproved Properties Excluded from Amortization [Line Items]
Cost	209,106	209,106
Net	209,106	209,106
Exploration stage royalty interests | Pascua-Lama
Capitalized Costs of Unproved Properties Excluded from Amortization [Line Items]
Cost	177,690	177,690
Net	177,690	177,690
Exploration stage royalty interests | Other
Capitalized Costs of Unproved Properties Excluded from Amortization [Line Items]
Cost	105,773	106,864
Net	$ 105,773	$ 106,864