The amount of deferred fee payable.

No definition available.

Name:	maciw_DeferredFeePayable
Namespace Prefix:	maciw_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The amount of deferred underwriting fee.

+ References

No definition available.

+ Details

Name:	maciw_DeferredUnderwritingFeeNoncurrent
Namespace Prefix:	maciw_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Maximum number of additional units offered to purchase by the underwriters during the option period.

+ References

No definition available.

+ Details

Name:	maciw_MaximumNumberOfAdditionalUnitsOfferedForPurchase
Namespace Prefix:	maciw_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The maximum number of demands, excluding short form demands to be entitled by security holders.

+ References

No definition available.

+ Details

Name:	maciw_MaximumNumberOfDemandsExcludingShortFormDemandsEntitledBySecurityHolders
Namespace Prefix:	maciw_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Period to exercise the over-allotment option, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	maciw_OverAllotmentPeriod
Namespace Prefix:	maciw_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of underwriting discounts paid to the underwriters in connection with the initial public offering.

+ References

No definition available.

+ Details

Name:	maciw_PaymentsOfUnderwritingDiscounts
Namespace Prefix:	maciw_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The amount of cash withdrawn from Trust Account in connection with redemptions.

+ References

No definition available.

+ Details

Name:	maciw_ProceedsofCashWithdrawnFromTrustAccountInConnectionWithRedemptions
Namespace Prefix:	maciw_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Number of units available for purchase under the option provided to the underwriters (Maximum offered for purchase -Current exercises).

+ References

No definition available.

+ Details

Name:	maciw_RemainingNumberOfUnitsAvailableForPurchase
Namespace Prefix:	maciw_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The per unit value of deferred fee entitled to underwriters on units sold excluding the units sold under the option to purchase to underwriters.

+ References

No definition available.

+ Details

Name:	maciw_SaleOfUnitsDeferredUnderwritingFeePerUnitOnSaleExcludingOptionsForPurchase
Namespace Prefix:	maciw_
Data Type:	dtr:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

The per unit value of deferred fee entitled to underwriters on units sold to them under the overallotment option.

+ References

No definition available.

+ Details

Name:	maciw_SaleOfUnitsUnderwritersDeferredFeePerUnitOnSaleUnderOptionsForPurchase
Namespace Prefix:	maciw_
Data Type:	dtr:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

The discount per unit available to the underwriters in connection with the initial public offering.

+ References

No definition available.

+ Details

Name:	maciw_SaleOfUnitsUnderwritingDiscountsPerUnit
Namespace Prefix:	maciw_
Data Type:	dtr:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of units issued during the period.

+ References

No definition available.

+ Details

Name:	maciw_StockIssuedDuringPeriodUnitsNewIssues
Namespace Prefix:	maciw_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of the underwriting fee is payable beyond one year.

+ References

No definition available.

+ Details

Name:	maciw_UnderwritingFeePayableNoncurrent
Namespace Prefix:	maciw_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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_OtherCommitmentsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=us-gaap_OverAllotmentOptionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=us-gaap_IPOMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TypeOfArrangementAxis=maciw_UnderwritingAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Commitments and Contingencies (Details)		6 Months Ended		10 Months Ended	12 Months Ended
Commitments and Contingencies (Details)	Jun. 20, 2024 shares	Jun. 30, 2026 USD ($) $ / shares shares	Jun. 30, 2025 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2025 USD ($) $ / shares shares
Commitments and Contingencies [Line Items]
Number of demands		3			3
Number of units remaining for purchase under option (in Shares) \| shares	1,250,000
Deferred underwriting fee					$ 6,600,000
Trust account amount		$ 131,489,166
Related to deferred fee amount		4,885,024		$ 6,600,000
Deferred fee		1,714,976		$ 6,600,000	$ 6,600,000
Over-Allotment Option [Member]
Commitments and Contingencies [Line Items]
Over-allotment period					45 days
Maximum additional number of units offered to underwriters (in Shares) \| shares					2,250,000
Number of units issued upon exercise of option by underwriter (in Shares) \| shares	1,000,000
Deferred underwriting fee per unit relating to option (in Dollars per share) \| $ / shares					$ 0.6
Deferred underwriting fee					$ 6,600,000
Initial Public Offering [Member]
Commitments and Contingencies [Line Items]
Underwriting discount per unit (in Dollars per share) \| $ / shares					$ 0.2
Payments of underwriting discounts					$ 3,000,000
Deferred underwriting fee per unit excluding option (in Dollars per share) \| $ / shares					$ 0.4
Underwriting Agreement [Member]
Commitments and Contingencies [Line Items]
Number of units remaining for purchase under option (in Shares) \| shares	1,250,000
Trust account amount		131,489,166
Related to deferred fee amount		4,885,024
Deferred fee		$ 1,714,976
Underwriting Agreement [Member] \| Over-Allotment Option [Member]
Commitments and Contingencies [Line Items]
Over-allotment period		45 days
Maximum additional number of units offered to underwriters (in Shares) \| shares		2,250,000
Number of units issued upon exercise of option by underwriter (in Shares) \| shares	1,000,000
Deferred underwriting fee per unit relating to option (in Dollars per share) \| $ / shares		$ 0.6
Deferred underwriting fee		$ 6,600,000
Underwriting Agreement [Member] \| Initial Public Offering [Member]
Commitments and Contingencies [Line Items]
Underwriting discount per unit (in Dollars per share) \| $ / shares		$ 0.2
Payments of underwriting discounts		$ 3,000,000
Deferred underwriting fee per unit excluding option (in Dollars per share) \| $ / shares		$ 0.4