Deferred tax assets and liabilities line items

No definition available.

Name:	bma_DeferredTaxAssetsAndLiabilitiesLineItems
Namespace Prefix:	bma_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of deferred tax liabilities or assets. [Refer: Deferred tax liabilities; Deferred tax assets]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 12
-IssueDate 2021-01-01
-Paragraph 81
-Subparagraph g
-Clause i
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2021-en-r&anchor=para_81_g_i&doctype=Standard
-URIDate 2021-03-24

+ Details

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

- Definition

The amount of deferred tax assets net of deferred tax liabilities, when the absolute amount of deferred tax assets is greater than the absolute amount of deferred tax liabilities. [Refer: Deferred tax assets; Deferred tax liabilities]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 12
-IssueDate 2021-01-01
-Paragraph 81
-Subparagraph g
-Clause i
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2021-en-r&anchor=para_81_g_i&doctype=Standard
-URIDate 2021-03-24

+ Details

Name:	ifrs-full_NetDeferredTaxAssets
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount of deferred tax liabilities net of deferred tax assets, when the absolute amount of deferred tax liabilities is greater than the absolute amount of deferred tax assets. [Refer: Deferred tax assets; Deferred tax liabilities]

+ References

+ Details

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

- Details

Name:	ifrs-full_AssetsAndLiabilitiesAxis=bma_InflationAdjustmentOnDeferredIncomeTaxMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_AssetsAndLiabilitiesAxis=bma_AllowancesForContingenciesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_AssetsAndLiabilitiesAxis=bma_ProvisionsAndEmployeeBenefitMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_AssetsAndLiabilitiesAxis=ifrs-full_LeaseReceivablesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_AssetsAndLiabilitiesAxis=bma_LoansAndOtherFinancingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_AssetsAndLiabilitiesAxis=bma_OtherMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_AssetsAndLiabilitiesAxis=ifrs-full_PropertyPlantAndEquipmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_AssetsAndLiabilitiesAxis=bma_IntangibleAssetMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_AssetsAndLiabilitiesAxis=bma_InvestmentsInOtherCompaniesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_AssetsAndLiabilitiesAxis=bma_ProfitOrLossForForwardSaleMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_AssetsAndLiabilitiesAxis=bma_OtherLiabilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Income Tax - Summary of deferred tax assets and deferred tax liabilities (Detail) - ARS ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Deferred Tax Assets And Liabilities [line items]
Deferred Tax Assets	$ 4,761,285	$ 4,595,405
Deferred Tax Liabilities	10,960,715	15,742,343
Net deferred tax liabilities	6,199,430	11,146,938	$ 1,062,726
Unused Inflation adjustment in accordance with income tax law
Deferred Tax Assets And Liabilities [line items]
Deferred Tax Assets	111,908	169,255
Allowances for contingencies [member]
Deferred Tax Assets And Liabilities [line items]
Deferred Tax Assets	459,249	551,200
Provisions and employee benefit [member]
Deferred Tax Assets And Liabilities [line items]
Deferred Tax Assets	1,094,454	892,236
Lease [member]
Deferred Tax Assets And Liabilities [line items]
Deferred Tax Assets	175,719	160,220
Loans and other financing [member]
Deferred Tax Assets And Liabilities [line items]
Deferred Tax Assets	2,634,006	2,578,320
Other [member]
Deferred Tax Assets And Liabilities [line items]
Deferred Tax Assets	285,949	244,174
Property, plant and equipment [member]
Deferred Tax Assets And Liabilities [line items]
Deferred Tax Liabilities	5,645,093	10,341,362
Intangible asset [member]
Deferred Tax Assets And Liabilities [line items]
Deferred Tax Liabilities	2,932,739	2,079,409
Investments in other companies [member]
Deferred Tax Assets And Liabilities [line items]
Deferred Tax Liabilities	1,231,051	1,937,941
Profit or loss for forward sale [member]
Deferred Tax Assets And Liabilities [line items]
Deferred Tax Liabilities	932,601	772,396
Other [member]
Deferred Tax Assets And Liabilities [line items]
Deferred Tax Liabilities	$ 219,231	$ 611,235