Number of ounces of production approximately.

No definition available.

Name:	rgld_AssetAcquisitionApproximateNumberOfOuncesProduced
Namespace Prefix:	rgld_
Data Type:	dtr-types:massItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of gross royalty.

+ References

No definition available.

+ Details

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

- Definition

The amount of royalty revenue.

+ References

No definition available.

+ Details

Name:	rgld_RoyaltyRevenue
Namespace Prefix:	rgld_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage investment held by members or limited partners of limited liability company (LLC) or limited partnership (LP).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055

+ Details

Name:	us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPMembersOrLimitedPartnersOwnershipInterest
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
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

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

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=rgld_IdahoRoyaltyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=rgld_BarrickGoldMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_OwnershipAxis=rgld_FourmileMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProjectAxis=rgld_ProductionStageRoyaltyInterestMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProjectAxis=rgld_ExplorationStageRoyaltyInterestMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=rgld_PipelineAndCrossroadsDepositsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=rgld_CortezHillsGoldrushFourmileAndRobertsonDepositsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

ACQUISITIONS AND DISPOSITIONS - Idaho (Details) $ in Thousands		3 Months Ended	6 Months Ended	12 Months Ended
	Dec. 29, 2022 USD ($)	Dec. 31, 2022 USD ($) oz	Dec. 31, 2021 USD ($)	Dec. 31, 2022 USD ($)	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
Idaho Royalty
Acquisitions
Payment to acquire interest	$ 204,100
Royalty revenue		$ 700
Number of ounces of production approx \| oz		116,000
Idaho Royalty \| Barrick \| Fourmile
Acquisitions
Ownership percentage held	100.00%
Idaho Royalty \| Production stage royalty interests
Acquisitions
Payment to acquire interest	$ 73,400
Idaho Royalty \| Exploration stage royalty interests
Acquisitions
Payment to acquire interest	$ 130,700
Pipeline and Crossroads deposits
Acquisitions
Gross royalty (as a percent)	0.24%
Cortez Hills, Goldrush, Fourmile and Robertson deposits
Acquisitions
Gross royalty (as a percent)	0.45%