ACQUISITIONS AND DISPOSITIONS - Asset acquisitions (Details) $ in Thousands										6 Months Ended	12 Months Ended
	Aug. 02, 2022 USD ($) oz	Mar. 24, 2022 USD ($)	Mar. 22, 2022 USD ($)	Mar. 14, 2022 USD ($)	Feb. 23, 2022 USD ($)	Feb. 22, 2022	Aug. 11, 2021 USD ($) ha	Aug. 06, 2021 USD ($) oz	Jun. 07, 2021 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2022 USD ($) shares	Dec. 31, 2021 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)
Acquisitions
Payment to acquire interest										$ 281,066	$ 922,155	$ 400,381	$ 168,147	$ 155,985
Carrying value of marketable securities										$ 1,733	$ 373	$ 1,733	$ 3,082	$ 17,863
TriStar
Acquisitions
Stock that can be purchased by warrants (in shares) | shares											19,640,000
Cortez
Acquisitions
Payment to acquire interest	$ 525,000
Gross royalty (as a percent)	1.20%
Quantity of gold attributable to royalty | oz	15,000,000
Royalty payable term	45 days
Production payable (as a percent)	40.00%
Cortez | Minimum
Acquisitions
Gross royalty (as a percent)	0.00%
Spot price adjustment threshold | oz	400
Cortez | Maximum
Acquisitions
Gross royalty (as a percent)	3.00%
Spot price adjustment threshold | oz	900
Cortez | Production stage royalty interests
Acquisitions
Payment to acquire interest	$ 199,000
Cortez | Exploration stage royalty interests
Acquisitions
Payment to acquire interest	$ 326,000
Cortez | Barrick | Fourmile
Acquisitions
Ownership percentage held	100.00%
Lawyers Project
Acquisitions
Payment to acquire interest		$ 8,000
Net smelter return (NSR) (as a percent)		0.50%
Lawyers Project | Exploration stage royalty interests
Acquisitions
Payment to acquire interest		$ 8,000
Ranch Project
Acquisitions
Royalty that can be acquired (as a percent)		2.00%
Khoemacau
Acquisitions
Payment to acquire interest				$ 16,500	$ 10,000
Production payable (as a percent)				100.00%	93.00%	90.00%
Variable loan receivable											$ 25,000
Interest receivable											5,500
Khoemacau | Production stage stream interests
Acquisitions
Payment to acquire interest				$ 265,000
Red Chris
Acquisitions
Payment to acquire interest							$ 165,000
Area of mining to be eligible for concessions | ha							5,100
Net smelter return (NSR) (as a percent)							1.00%
Red Chris | Production stage royalty interests
Acquisitions
Payment to acquire interest							$ 116,200
Red Chris | Exploration stage royalty interests
Acquisitions
Payment to acquire interest							$ 48,900
Red Chris | Newcrest Mining | Red Chris
Acquisitions
Joint venture ownership interest (as a percent)							70.00%
Red Chris | Imperial Metals Corporation | Red Chris
Acquisitions
Joint venture ownership interest (as a percent)							30.00%
Xavantina (formerly NX Gold)
Acquisitions
Payment to acquire interest			$ 3,200					$ 100,000			3,200
Conditional funding from acquisition								10,000			$ 6,800
Xavantina (formerly NX Gold) | Production stage royalty interests
Acquisitions
Payment to acquire interest								54,900
Xavantina (formerly NX Gold) | Exploration stage royalty interests
Acquisitions
Payment to acquire interest								$ 45,100
Xavantina (formerly NX Gold) | First Condition
Acquisitions
Spot price adjustment threshold | oz								49,000
Production payable (as a percent)								25.00%
Spot price paid (as a percent)								20.00%
Volume adjustment threshold | oz								93,000
Xavantina (formerly NX Gold) | Second Condition
Acquisitions
Production payable (as a percent)								10.00%
Spot price paid (as a percent)								40.00%
Cote
Acquisitions
Payment to acquire interest									$ 75,000
Net smelter return (NSR) (as a percent)									1.00%
Royalty covering current reserves (as a percent)									70.00%
Cote | Cote Gold Joint Venture | Cote
Acquisitions
Joint venture ownership interest (as a percent)									92.50%
Cote | IAMGOLD Corporation | Cote Gold Joint Venture
Acquisitions
Joint venture ownership interest (as a percent)									70.00%
Cote | Sumitomo Metal Mining | Cote Gold Joint Venture
Acquisitions
Joint venture ownership interest (as a percent)									30.00%
Cote | Third Party | Cote
Acquisitions
Joint venture ownership interest (as a percent)									7.50%