v3.25.1
FAIR VALUES - Summary of Assets and Liabilities Recorded at Amortized Cost (Detail) - ARS ($)
$ in Thousands
Mar. 31, 2025
Dec. 31, 2024
Mar. 31, 2024
Dec. 31, 2023
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Total Assets $ 34,813,628,193 $ 35,304,482,204    
Total Liabilities 28,063,242,820 28,721,128,962    
Level 1        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Total Assets 3,356,204,140 3,414,462,015    
Total Liabilities 61,842,719 9,777,215    
Level 2        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Total Assets 1,146,951,893 1,224,612,665    
Total Liabilities 19,304,382 8,329,699    
Level 3        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Total Assets 76,167,348 95,097,094 $ 95,097,094 $ 16,965,707
Total Liabilities 0 0    
Deposits        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Total Liabilities 19,220,849,572      
Deposits | Fair value        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Liabilities at Fair Value 19,221,430,554      
Deposits | Fair value | Level 1        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Liabilities at Fair Value 0      
Deposits | Fair value | Level 2        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Liabilities at Fair Value 0      
Deposits | Fair value | Level 3        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Liabilities at Fair Value 19,221,430,554      
Repurchase Transactions        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Total Liabilities 111,695,652      
Repurchase Transactions | Fair value        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Liabilities at Fair Value 111,695,652      
Repurchase Transactions | Fair value | Level 1        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Liabilities at Fair Value 111,695,652      
Repurchase Transactions | Fair value | Level 2        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Liabilities at Fair Value 0      
Repurchase Transactions | Fair value | Level 3        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Liabilities at Fair Value 0      
Financing from the Argentine Central Bank and Other Financial Institutions        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Total Liabilities 517,648,489      
Financing from the Argentine Central Bank and Other Financial Institutions | Fair value        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Liabilities at Fair Value 517,651,927      
Financing from the Argentine Central Bank and Other Financial Institutions | Fair value | Level 1        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Liabilities at Fair Value 0      
Financing from the Argentine Central Bank and Other Financial Institutions | Fair value | Level 2        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Liabilities at Fair Value 0      
Financing from the Argentine Central Bank and Other Financial Institutions | Fair value | Level 3        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Liabilities at Fair Value 517,651,927      
Debt Securities        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Total Liabilities 1,061,434,677      
Debt Securities | Fair value        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Liabilities at Fair Value 1,056,848,014      
Debt Securities | Fair value | Level 1        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Liabilities at Fair Value 1,056,848,014      
Debt Securities | Fair value | Level 2        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Liabilities at Fair Value 0      
Debt Securities | Fair value | Level 3        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Liabilities at Fair Value 0      
Subordinated Debt Securities        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Total Liabilities 271,441,661      
Subordinated Debt Securities | Fair value        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Liabilities at Fair Value 272,731,218      
Subordinated Debt Securities | Fair value | Level 1        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Liabilities at Fair Value 0      
Subordinated Debt Securities | Fair value | Level 2        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Liabilities at Fair Value 0      
Subordinated Debt Securities | Fair value | Level 3        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Liabilities at Fair Value 272,731,218      
Other Financial Liabilities        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Total Liabilities 4,758,917,377      
Other Financial Liabilities | Fair value        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Liabilities at Fair Value 4,758,917,377      
Other Financial Liabilities | Fair value | Level 1        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Liabilities at Fair Value 0      
Other Financial Liabilities | Fair value | Level 2        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Liabilities at Fair Value 0      
Other Financial Liabilities | Fair value | Level 3        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Liabilities at Fair Value 4,758,917,377      
Cash and Due from Banks        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Total Assets 6,161,588,760      
Cash and Due from Banks | Fair value        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Assets at Fair Value 6,161,588,760      
Cash and Due from Banks | Fair value | Level 1        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Assets at Fair Value 6,161,588,760      
Cash and Due from Banks | Fair value | Level 2        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Assets at Fair Value 0      
Cash and Due from Banks | Fair value | Level 3        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Assets at Fair Value 0      
Repurchase Transactions        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Total Assets 61,100,392      
Repurchase Transactions | Fair value        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Assets at Fair Value 61,100,392      
Repurchase Transactions | Fair value | Level 1        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Assets at Fair Value 61,100,392      
Repurchase Transactions | Fair value | Level 2        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Assets at Fair Value 0      
Repurchase Transactions | Fair value | Level 3        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Assets at Fair Value 0      
Loans and Other Financing        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Total Assets 16,450,644,932      
Loans and Other Financing | Level 1        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Total Assets 0 0    
Loans and Other Financing | Level 2        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Total Assets 33,438,340 26,974,180    
Loans and Other Financing | Level 3        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Total Assets 0 0    
Loans and Other Financing | Fair value        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Assets at Fair Value 16,915,905,361      
Loans and Other Financing | Fair value | Level 1        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Assets at Fair Value 0      
Loans and Other Financing | Fair value | Level 2        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Assets at Fair Value 1,638,470,000      
Loans and Other Financing | Fair value | Level 3        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Assets at Fair Value 15,277,435,361      
Others        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Total Assets 2,053,116,168      
Others | Level 1        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Total Assets 250,970,927 341,279,478    
Others | Level 2        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Total Assets 43,211 47,144    
Others | Level 3        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Total Assets 19,724,965 20,677,139 20,677,139 0
Others | Fair value        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Assets at Fair Value 2,074,884,556      
Others | Fair value | Level 1        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Assets at Fair Value 2,042,820,816      
Others | Fair value | Level 2        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Assets at Fair Value 0      
Others | Fair value | Level 3        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Assets at Fair Value 32,063,740      
Other Debt Securities        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Total Assets 2,055,839,425      
Other Debt Securities | Level 1        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Total Assets 2,006,110,656 1,512,345,135    
Other Debt Securities | Level 2        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Total Assets 839,905,003 982,634,164    
Other Debt Securities | Level 3        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Total Assets 0 2,553,142 $ 2,553,142 $ 0
Other Debt Securities | Fair value        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Assets at Fair Value 1,831,097,897      
Other Debt Securities | Fair value | Level 1        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Assets at Fair Value 1,829,517,856      
Other Debt Securities | Fair value | Level 2        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Assets at Fair Value 0      
Other Debt Securities | Fair value | Level 3        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Assets at Fair Value 1,580,041      
Financial Assets Pledged as Collateral        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Total Assets 1,073,816,651      
Financial Assets Pledged as Collateral | Level 1        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Total Assets 12,912,024 34,531,438    
Financial Assets Pledged as Collateral | Level 2        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Total Assets 0 124,991,769    
Financial Assets Pledged as Collateral | Level 3        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Total Assets 0 $ 0    
Financial Assets Pledged as Collateral | Fair value        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Assets at Fair Value 1,073,816,651      
Financial Assets Pledged as Collateral | Fair value | Level 1        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Assets at Fair Value 1,073,816,651      
Financial Assets Pledged as Collateral | Fair value | Level 2        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Assets at Fair Value 0      
Financial Assets Pledged as Collateral | Fair value | Level 3        
Disclosure of reconciliation of changes in fair value measurement assets liabilities [line items]        
Financial Assets at Fair Value $ 0