The amount of outstanding funds that the entity is obligated to repay.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2027-01-01
-Name IAS
-Number 1
-IssueDate 2025-01-01
-Paragraph 55
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_55&doctype=Standard
-URIDate 2025-03-27

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

- Definition

The interest rate on borrowings. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 7
-IssueDate 2025-01-01
-Paragraph 7
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2025-en-r&anchor=para_7&doctype=Standard
-URIDate 2025-03-27

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Balance Type:	na
Period Type:	instant

- Definition

The amount of current interest payable. [Refer: Interest payable]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2027-01-01
-Name IAS
-Number 1
-IssueDate 2025-01-01
-Paragraph 112
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_112_c&doctype=Standard
-URIDate 2025-03-27

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

- Definition

The current portion of non-current borrowings. [Refer: Borrowings]

+ References

+ Details

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

- Definition

An incentive given by a borrower to a lender to make a debt financing deal more attractive.

+ References

No definition available.

+ Details

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Namespace Prefix:	mrno_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The number of shares used as an incentive given by a borrower to a lender to make a debt financing deal more attractive.

+ References

No definition available.

+ Details

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Namespace Prefix:	mrno_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

The specified period of time provided within a loan agreement that the borrower is permitted to make payments on the loan beyond the payment due date without incurring a penalty for the late payment.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

The number of rooms under construction during the period.

+ References

No definition available.

+ Details

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Namespace Prefix:	mrno_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of reportable operating segments.

+ References

No definition available.

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Namespace Prefix:	mrno_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The share price of issued capital.

+ References

No definition available.

+ Details

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Namespace Prefix:	mrno_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=mrno_GICIHotelMember
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Basis of preparation (Details)	12 Months Ended
Basis of preparation (Details)	Dec. 31, 2025 MXN ($) Room Segment shares	Dec. 31, 2025 USD ($) $ / shares	Sep. 12, 2025 USD ($)	Dec. 31, 2024 MXN ($)	Sep. 30, 2024	Jan. 18, 2024	Jan. 05, 2024 MXN ($)	Mar. 31, 2023
Going Concern Basis [Abstract]
Outstanding loan	$ 10,719,644,941			$ 11,174,200,426
Current outstanding loan	10,692,844,600			3,481,380,489
Interest payment	$ 916,613,493			$ 346,134,418
Interest rate					15.00%
Segments [Abstract]
Number of segments \| Segment	1
GIC I [Member]
Going Concern Basis [Abstract]
Number of rooms under construction \| Room	616
Bancomext [Member]
Going Concern Basis [Abstract]
Outstanding loan	$ 1,772,600,000	$ 98,700,000
ALG [Member]
Going Concern Basis [Abstract]
Outstanding loan	359,100,000	20,000,000
Interest rate								10.00%
Senior Notes [Member]
Going Concern Basis [Abstract]
Outstanding loan			$ 300,000,000
Current outstanding loan	$ 5,494,100,000	306,000,000
Interest payment			$ 300,000,000
Interest rate			11.00%
Grace period	30 days
NAFIN [Member]
Going Concern Basis [Abstract]
Outstanding loan	$ 1,044,400,000	58,200,000
Exitus [Member]
Going Concern Basis [Abstract]
Outstanding loan	$ 366,300,000	20,400,000
Equity kicker		$ 3,102,985
Equity kicker of ordinary shares (in shares) \| shares	356,665
Share price (in dollars per share) \| $ / shares		$ 8.7
Finamo [Member]
Going Concern Basis [Abstract]
Outstanding loan	$ 964,200,000	$ 53,700,000					$ 350,000,000
Interest rate						15.00%	17.00%