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Guarantees - Other Guarantees - Additional Information (Details) - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Guarantor Obligations [Line Items]    
Funds Advanced To Investors Under Servicing Agreements $ 48,557 $ 41,916
Popular, Inc. Holding Co.    
Guarantor Obligations [Line Items]    
Wholly-owned subsidiary percentage 100.00% 100.00%
Popular, Inc. Holding Co. | Debt Securities Payable    
Guarantor Obligations [Line Items]    
Guarantees, unamortized balance of the obligations $ 94,000 $ 94,000
Financial Standby Letter Of Credit    
Guarantor Obligations [Line Items]    
Guarantees, unamortized balance of the obligations 1,000 300
Guarantee Type, Other | Popular, Inc. Holding Co. | Capital securities (trust preferred securities)    
Guarantor Obligations [Line Items]    
Guarantees, unamortized balance of the obligations $ 193,000 $ 193,000