Represents the number of equity securities sold during the period.

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Represents the option to acquire a percentage of royalty pursuant to the agreement.

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No definition available.

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Represents percentage of net smelter return.

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No definition available.

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The amount of cash inflow from sale of interests in joint venture and sale of equity securities.

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No definition available.

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Amount of gain (loss) on sale or disposal of an equity method investment.

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Amount of unrealized and realized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Carrying amount at the balance sheet date of mineral properties, gross of adjustments.

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Mineral properties, net of adjustments.

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The cash outflow associated with the acquisition of a controlling interest in another entity or an entity that is related to it but not strictly controlled (for example, an unconsolidated subsidiary, affiliate, joint venture or equity method investment).

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The cash inflow from the sale of an investment interest in a joint venture that the reporting entity has not previously accounted for using consolidation or the equity method of accounting.

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The cash inflow associated with the aggregate amount received by the entity through sale or maturity of marketable securities (held-to-maturity or available-for-sale) during the period.

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No definition available.

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ACQUISITIONS AND DISPOSITIONS - Dispositions (Details) - USD ($) $ in Thousands			3 Months Ended	6 Months Ended		12 Months Ended
	Sep. 30, 2020	Sep. 29, 2020	Sep. 30, 2020	Dec. 31, 2021	Dec. 31, 2020	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Dispositions
Proceeds from sale of Peak Gold JV interest					$ 49,154	$ 49,154
Proceeds from sale of Contango shares					12,146	12,146
Payment to acquire interest				$ 281,066	48,832	168,147	$ 155,985	$ 1,055
Cost				3,899,867		3,618,802	3,553,950
Stream and royalty interest				2,443,752		2,262,158	$ 2,318,913
Gain on sale of Peak Gold JV interest					$ 33,906	$ 33,906
Mark-to-market increase on sale								$ (6,800)
Peak Gold LLC
Dispositions
Total cash consideration	$ 4,000
Percentage of royalty that can be acquired	50.00%
Peak Gold/Manh Choh
Dispositions
Net smelter return (NSR) (as a percent)	28.00%
Stream and royalty interest				$ 4,400
Alaska mining claims
Dispositions
Net smelter return (NSR) (as a percent)	3.00%	2.00%
Percentage of royalty that can be acquired	1.00%
Peak Gold/Manh Choh
Dispositions
Proceeds from sale of Peak Gold JV interest	$ 49,200
Total cash consideration	$ 61,300
Gain on sale of Peak Gold JV interest			$ 33,900
Contango
Dispositions
Number of shares sold	809,744		809,744
Proceeds from sale of Contango shares	$ 12,100
Mark-to-market increase on sale			$ 3,600