The vale of buy back capitalized as a direct transaction cost with royalty mineral interest.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage of royalty interest that acquiree can purchase under the cooperation agreement.

+ References

No definition available.

+ Details

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- Definition

Threshold period for acquiree to purchase royalty interest after the transaction closing date.

+ References

No definition available.

+ Details

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Namespace Prefix:	rgld_
Data Type:	xbrli:durationItemType
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- Definition

Represents percentage of net smelter return.

+ References

No definition available.

+ Details

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Namespace Prefix:	rgld_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of purchase price equal to option to purchase royalty interest.

+ References

No definition available.

+ Details

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the area of interest surrounding the presently owned mine, as well as any other mining concessions presently owned or acquired.

+ References

No definition available.

+ Details

Name:	rgld_RoyaltyAgreementMiningConcessionsAreaOfInterestRange
Namespace Prefix:	rgld_
Data Type:	dtr-types:areaItemType
Balance Type:	na
Period Type:	duration

- Definition

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.

+ References

No definition available.

+ Details

Name:	us-gaap_AssetAcquisitionLineItems
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Data Type:	xbrli:stringItemType
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Period Type:	duration

- Definition

The cash outflow from the acquisition of a mineral right which is the right to extract a mineral from the earth or to receive payment, in the form of royalty, for the extraction of minerals.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3213-108585

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=rgld_KinrossMember
Namespace Prefix:
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ACQUISITIONS AND DISPOSITIONS - Great Bear (Details) $ in Thousands, $ in Millions			6 Months Ended	12 Months Ended
	Sep. 09, 2022 USD ($) ha	Sep. 09, 2022 CAD ($) ha	Dec. 31, 2021 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)
Acquisitions
Acquisition consideration paid			$ 281,066	$ 922,155	$ 400,381	$ 168,147	$ 155,985
GBR
Acquisitions
Acquisition consideration paid	$ 151,679	$ 199.6
Net smelter return (NSR) (as a percent)	2.00%	2.00%
Area of mining \| ha	9,140	9,140
Option to purchase royalty interest (as a percent)	25.00%	25.00%
Option purchase price based on original price (as a percent)	25.00%	25.00%
Threshold period for option purchase	10 years	10 years
Buy Back Option	$ 2,100
GBR \| Kinross
Acquisitions
Net smelter return (NSR) (as a percent)	0.50%	0.50%