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Applicable laws and regulations - Additional Information (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Statement [Line Items]    
Capital reserves $ 95,210 $ 95,210
Minimum of the year    
Statement [Line Items]    
Percentage of liquid assets 30.00%  
Percentage of capital adequacy index 8.00%  
Percentage of ordinary primary capital 4.50%  
Percentage of primary capital 6.00%  
Normal    
Statement [Line Items]    
Percentage of reserve for credit losses 0.00%  
Special Mentions [Member]    
Statement [Line Items]    
Percentage of reserve for credit losses 20.00%  
Substandard    
Statement [Line Items]    
Percentage of reserve for credit losses 50.00%  
Doubtful    
Statement [Line Items]    
Percentage of reserve for credit losses 80.00%  
Unrecoverable    
Statement [Line Items]    
Percentage of reserve for credit losses 100.00%  
Superintendence of Banks of Panama    
Statement [Line Items]    
Percentage of liquidity coverage ratio 167.46% 199.19%
Maturity of deposits in overseas up 186 days  
Percentage of liquidity index 100.49% 80.80%
Provisions and credit reserves $ 136,000 $ 136,000
Superintendence of Banks of Panama | Minimum of the year    
Statement [Line Items]    
Percentage of liquidity coverage ratio 100.00% 80.00%