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Capital Management, Corporate Governance Transparency Policy and Risk Management - Additional Information (Detail)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
ARS ($)
Board_member
Branches
Dec. 31, 2020
ARS ($)
Disclosure of detailed information about financial instruments [line items]    
Number of board of directors | Board_member 13  
Number of independent directors | Board_member 6  
Percentage of high liquidity assets portfolio 25.00%  
Percentage of confidence level 99.00%  
Probability Of Default Estimated Life 12 months  
Percentage Of Weighted Average Probability Of Default 100.00%  
Estimated Forward looking allowances based on expert judgment | $   $ 5,553,719
Adjustment for uncertainty in external obligation restructuring Amount | $ $ 1,986,000  
Medium Sized Segments Of Comparable Commercial Portfolio [Member]    
Disclosure of detailed information about financial instruments [line items]    
Number of arrear days upon impairment 90 days  
Consumption Portfolio [Member]    
Disclosure of detailed information about financial instruments [line items]    
Number of arrear days upon impairment 90 days  
Bottom of range [member] | Low Risk Customer [Member] | Stage 2 [Member] | Consumption Portfolio And Comparable Commercial Portfolio [Member]    
Disclosure of detailed information about financial instruments [line items]    
Number of arrear days upon impairment 90 days  
Top of range [member] | Low Risk Customer [Member]    
Disclosure of detailed information about financial instruments [line items]    
Number of arrear days upon impairment 90 days  
Top of range [member] | No Low Risk Customer [Member] | Stage 2 [Member]    
Disclosure of detailed information about financial instruments [line items]    
Number of arrear days upon impairment 30 days  
Banco Macro SA [member]    
Disclosure of detailed information about financial instruments [line items]    
Number of branches | Branches 466