STREAM AND ROYALTY INTERESTS, NET (Details) $ in Thousands		6 Months Ended
	Oct. 01, 2020 oz	Dec. 31, 2021 USD ($) oz	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)
Stream and royalty interest		$ 2,443,752	$ 2,262,158	$ 2,318,913
Wassa
Stream and royalty interest		$ 61,600
Wassa | Initial Royalty
Gold interest (as a percent)	10.50%
Gold delivered (in ounces) | oz	240,000
Spot price paid (as a percent)	20.00%
Remaining gold to be delivered (in ounces) | oz		104,000
Wassa | Subsequent Royalty
Gold interest (as a percent)	5.50%
Spot price paid (as a percent)	30.00%
Prestea and Bogoso
Gold interest (as a percent)	5.50%
Spot price paid (as a percent)	30.00%
Stream and royalty interest		$ 0