Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details

REVENUE - Property Disaggregation (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Disaggregation of Revenue
Revenue	$ 131,429	$ 174,431	$ 440,226	$ 485,047
Stream interests
Disaggregation of Revenue
Revenue	98,732	115,921	308,863	325,688
Stream interests \| Mt. Milligan
Disaggregation of Revenue
Revenue	41,553	53,455	129,596	131,061
Stream interests \| Pueblo Viejo
Disaggregation of Revenue
Revenue	21,156	27,198	64,232	83,957
Stream interests \| Andacollo
Disaggregation of Revenue
Revenue	12,170	11,601	39,565	52,491
Stream interests \| Wassa
Disaggregation of Revenue
Revenue	7,390	8,033	22,840	23,935
Stream interests \| Other.
Disaggregation of Revenue
Revenue	11,413	15,527	39,989	34,137
Royalty interests
Disaggregation of Revenue
Revenue	32,697	58,510	131,363	159,359
Royalty interests \| Other.
Disaggregation of Revenue
Revenue	$ 19,125	$ 29,172	$ 70,182	$ 81,145