XML 80 R65.htm IDEA: XBRL DOCUMENT
v3.21.1

Equity Instruments at Fair Value Through Profit or Loss (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2020
Statement [LineItems] |
Summary of Equity Instruments at Fair Value Through Profit or Loss | The following table shows holdings of equity instruments at fair value through profit or loss as of December 31, 2020 and 2019:
|  | Holdings |
Name |  | 12/31/2020 |  |  | 12/31/2019 |
| Fair value level |  | Book amounts |  |  | Book amounts |
Equity Instruments |  |  |  |  |  |  |  |  |  |
Measured at fair value through profit or loss |  |  |  |  |  |  |  |  |  |
- Local |  |  |  |  |  |  |  |  |  |
Prisma Medios de Pago SA |  | 3 |  |  | 4,975,977 |  |  |  | 3,405,143 |
Mercado Abierto Electrónico SA |  | 3 |  |  | 144,222 |  |  |  | 70,730 |
Matba Rofex SA |  | 3 |  |  | 21,242 |  |  |  | 15,723 |
C.O.E.L.S.A |  | 3 |  |  | 19,511 |  |  |  | 13,076 |
Argentina Clearing y Registro SA |  | 3 |  |  | 14,731 |  |  |  | 14,217 |
Sedesa |  | 3 |  |  | 11,682 |  |  |  | 9,492 |
Provincanje SA |  | 3 |  |  | 6,243 |  |  |  | 3,315 |
AC Inversora SA |  | 3 |  |  | 5,389 |  |  |  |  |
Mercado a Término Rosario SA |  | 3 |  |  | 4,308 |  |  |  | 12,510 |
Proin SA |  | 3 |  |  | 1,960 |  |  |  | 2,012 |
Other |  |  |  |  | 1,407 |  |  |  | 1,751 |
Subtotal local |  |  |  |  | 5,206,672 |  |  |  | 3,547,969 |
- Foreign |  |  |  |  |  |  |  |  |  |
Banco Latinoamericano de Comercio Exterior SA |  | 1 |  |  | 9,728 |  |  |  | 12,731 |
Sociedad de Telecomunicaciones Financieras Interbancarias Mundiales |  | 3 |  |  | 1,899 |  |  |  | 1,727 |
Subtotal foreign |  |  |  |  | 11,627 |  |  |  | 14,458 |
Total measured at fair value through profit or loss |  |  |  |  | 5,218,299 |  |  |  | 3,562,427 |
TOTAL EQUITY INSTRUMENTS |  |  |  |  | 5,218,299 |  |  |  | 3,562,427 |

X
- Definition Schedule of equity instruments at fair value through profit or loss [text block] + References No definition available. + Details
Name: | bma_ScheduleOfEquityInstrumentsAtFairValueThroughProfitOrLossExplanatory
Namespace Prefix: | bma_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- 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: | bma_StatementLineItems
Namespace Prefix: | bma_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration