Consideration cash amount due

No definition available.

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- Definition

Consideration transferred, acquisition of royalty interest.

+ References

No definition available.

+ Details

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

- Definition

Gross revenue royalty percentage.

+ References

No definition available.

+ Details

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

- Definition

Ifrs Statement Line Items

+ References

No definition available.

+ Details

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- Definition

Land agreement proceeds received from royalty and other mineral interests.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Ongoing payments value.

+ References

No definition available.

+ Details

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Namespace Prefix:	groy_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Percentage of ongoing payments.

+ References

No definition available.

+ Details

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

- Definition

Percentage of royalty interests acquired.

+ References

No definition available.

+ Details

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

- Definition

Percentage of royalty interests acquired on copper and other products

+ References

No definition available.

+ Details

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Namespace Prefix:	groy_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage of royalty interests acquired on gold

+ References

No definition available.

+ Details

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Namespace Prefix:	groy_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Royalty, streaming and other mineral interests, disposal.

+ References

No definition available.

+ Details

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Namespace Prefix:	groy_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Royalty, streaming and other mineral interests, transfers.

+ References

No definition available.

+ Details

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Namespace Prefix:	groy_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Transactions cost of royalty carrying value.

+ References

No definition available.

+ Details

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Namespace Prefix:	groy_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The fair value, at acquisition date, of cash transferred as consideration in a business combination. [Refer: Total for all business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-URIDate 2025-03-27

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of consideration paid or received in respect of both obtaining and losing control of subsidiaries or other businesses. [Refer: Total for all subsidiaries [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 7
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-URIDate 2025-03-27

+ Details

Name:	ifrs-full_ConsiderationPaidReceived
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The gain on the disposal of investments.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2027-01-01
-Name IAS
-Number 1
-IssueDate 2025-01-01
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-URIDate 2025-03-27

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The nominal value of capital arising from issuing ordinary shares. [Refer: Issued capital]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2027-01-01
-Name IAS
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-URIDate 2025-03-27

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The number of shares issued by the entity.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2027-01-01
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-Number 1
-IssueDate 2025-01-01
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-URIDate 2025-03-27

+ Details

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Data Type:	xbrli:sharesItemType
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Period Type:	instant

- References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-URIDate 2025-03-27

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

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Balance Type:
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- Details

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Data Type:	na
Balance Type:
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- Details

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Data Type:	na
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- Details

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- Details

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Data Type:	na
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- Details

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Data Type:	na
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- Details

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- Details

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Royalties, Streaming and Other Mineral Interests (Details Narrative) $ in Thousands, $ in Thousands				12 Months Ended
	Dec. 12, 2025 USD ($)	Oct. 23, 2025 USD ($)	Mar. 07, 2025 USD ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)	Nov. 25, 2025 shares	Mar. 07, 2025 CAD ($)
IfrsStatementLineItems [Line Items]
Carrying value				$ 0	$ 0
Carrying value of disposal				785	112
Number of shares issued \| shares						23,288,896
Royalty revenue				53	0
Land agreement proceeds				$ 561	1,663
Vares Copper Stream [Member]
IfrsStatementLineItems [Line Items]
Ongoing payments required to be made, percentage				30.00%
Ongoing payments				$ 967	268
Pilot Mountain Disposal [Member]
IfrsStatementLineItems [Line Items]
Gross revenue royalty percentage		2.00%
Satisfied in cash		$ 4,750
Satisfied by issuing shares		3,250
Cash due				500
Value of common shares		$ 1,000
Carrying value of disposal				785
Gain on disposal				3,965
Garrison Royalty Acquisition [Member]
IfrsStatementLineItems [Line Items]
Percentage of royalty interests acquired			1.20%				1.20%
Consideration transferred, acquisition of royalty interest			$ 1,948				$ 2,800
Transactions cost of royalty carrying value			$ 298
Pedra Branca Royalty Acquisition [Member]
IfrsStatementLineItems [Line Items]
Satisfied by issuing shares	$ 70,000
Percentage of royalty interests acquired on gold	25.00%
Percentage of royalty interests acquired on copper and other products	2.00%
Transactions cost of royalty carrying value	$ 651
Royalties on production stage assets [member]
IfrsStatementLineItems [Line Items]
Carrying value				(21,250)	16,132
Carrying value of disposal				0	0
Royalties on development stage assets [member]
IfrsStatementLineItems [Line Items]
Carrying value				21,250	16,132
Carrying value of disposal				0	0
Other Mineral Interests [Member]
IfrsStatementLineItems [Line Items]
Carrying value				4,134	0
Carrying value of disposal				0	$ 112
Borborema Mine [Member] \| Royalties on production stage assets [member]
IfrsStatementLineItems [Line Items]
Carrying value				21,250
Borborema Mine [Member] \| Royalties on development stage assets [member]
IfrsStatementLineItems [Line Items]
Carrying value				$ (21,250)