v3.25.1
Allowance for credit losses - Performance of loans modified (Details) - USD ($)
$ in Thousands
Mar. 31, 2025
Mar. 31, 2024
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification $ 328,979 $ 458,288
Past due    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 38,493 61,495
Past Due 30 To 59 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 6,551 7,754
Past Due 60 To 89 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 3,722 7,368
Past due 90 days or more    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 28,220 46,373
With payment default 5,070 7,046
Without payment default 23,150 39,327
Current    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 290,486 396,793
Mortgages    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 64,135 86,027
Mortgages | Past due    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 25,883 33,399
Mortgages | Past Due 30 To 59 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 5,072 5,970
Mortgages | Past Due 60 To 89 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 2,767 3,954
Mortgages | Past due 90 days or more    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 18,044 23,475
With payment default 3,901 3,525
Without payment default 14,143 19,950
Mortgages | Current    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 38,252 52,628
Commercial | Commercial multi-family    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 5,804 65
Commercial | Commercial multi-family | Past due    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0 65
Commercial | Commercial multi-family | Past Due 30 To 59 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0 0
Commercial | Commercial multi-family | Past Due 60 To 89 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0 0
Commercial | Commercial multi-family | Past due 90 days or more    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0 65
With payment default 0 0
Without payment default 0 65
Commercial | Commercial multi-family | Current    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 5,804 0
Commercial | CRE non-owner occupied    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 9,022 66,866
Commercial | CRE non-owner occupied | Past due    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 451 6,375
Commercial | CRE non-owner occupied | Past Due 30 To 59 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0 179
Commercial | CRE non-owner occupied | Past Due 60 To 89 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0 3,278
Commercial | CRE non-owner occupied | Past due 90 days or more    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 451 2,918
With payment default 0 0
Without payment default 451 2,918
Commercial | CRE non-owner occupied | Current    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 8,571 60,491
Commercial | CRE owner occupied    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 53,919 249,657
Commercial | CRE owner occupied | Past due    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 2,335 2,780
Commercial | CRE owner occupied | Past Due 30 To 59 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 85 811
Commercial | CRE owner occupied | Past Due 60 To 89 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 113 0
Commercial | CRE owner occupied | Past due 90 days or more    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 2,137 1,969
With payment default 257 537
Without payment default 1,880 1,432
Commercial | CRE owner occupied | Current    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 51,584 246,877
Commercial | Commercial and Industrial    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 173,957 49,629
Commercial | Commercial and Industrial | Past due    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 5,323 17,118
Commercial | Commercial and Industrial | Past Due 30 To 59 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 290 626
Commercial | Commercial and Industrial | Past Due 60 To 89 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 177 0
Commercial | Commercial and Industrial | Past due 90 days or more    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 4,856 16,492
With payment default 273 2,774
Without payment default 4,583 13,718
Commercial | Commercial and Industrial | Current    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 168,634 32,511
Consumer | Credit card    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 6,770 1,397
Consumer | Credit card | Past due    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 2,080 380
Consumer | Credit card | Past Due 30 To 59 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 699 126
Consumer | Credit card | Past Due 60 To 89 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 536 31
Consumer | Credit card | Past due 90 days or more    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 845 223
With payment default 503 159
Without payment default 342 64
Consumer | Credit card | Current    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 4,690 1,017
Consumer | Personal loans    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 15,226 4,560
Consumer | Personal loans | Past due    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 2,421 1,365
Consumer | Personal loans | Past Due 30 To 59 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 405 42
Consumer | Personal loans | Past Due 60 To 89 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 129 105
Consumer | Personal loans | Past due 90 days or more    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 1,887 1,218
With payment default 136 51
Without payment default 1,751 1,167
Consumer | Personal loans | Current    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 12,805 3,195
Consumer | Auto Loan    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 119 84
Consumer | Auto Loan | Past due    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0 13
Consumer | Auto Loan | Past Due 30 To 59 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0 0
Consumer | Auto Loan | Past Due 60 To 89 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0 0
Consumer | Auto Loan | Past due 90 days or more    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0 13
With payment default 0 0
Without payment default 0 13
Consumer | Auto Loan | Current    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 119 71
Consumer | Other    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 27 3
Consumer | Other | Past due    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0 0
Consumer | Other | Past Due 30 To 59 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0 0
Consumer | Other | Past Due 60 To 89 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0 0
Consumer | Other | Past due 90 days or more    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0 0
With payment default 0 0
Without payment default 0 0
Consumer | Other | Current    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 27 3
Puerto Rico    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 314,808 396,727
Puerto Rico | Past due    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 37,780 61,011
Puerto Rico | Past Due 30 To 59 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 6,537 7,754
Puerto Rico | Past Due 60 To 89 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 3,722 7,368
Puerto Rico | Past due 90 days or more    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 27,521 45,889
With payment default 4,425 7,046
Without payment default 23,096 38,843
Puerto Rico | Current    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 277,028 335,716
Puerto Rico | Mortgages    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 62,640 82,300
Puerto Rico | Mortgages | Past due    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 25,184 33,075
Puerto Rico | Mortgages | Past Due 30 To 59 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 5,072 5,970
Puerto Rico | Mortgages | Past Due 60 To 89 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 2,767 3,954
Puerto Rico | Mortgages | Past due 90 days or more    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 17,345 23,151
With payment default 3,256 3,525
Without payment default 14,089 19,626
Puerto Rico | Mortgages | Current    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 37,456 49,225
Puerto Rico | Commercial | Commercial multi-family    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification   65
Puerto Rico | Commercial | Commercial multi-family | Past due    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification   65
Puerto Rico | Commercial | Commercial multi-family | Past Due 30 To 59 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification   0
Puerto Rico | Commercial | Commercial multi-family | Past Due 60 To 89 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification   0
Puerto Rico | Commercial | Commercial multi-family | Past due 90 days or more    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification   65
With payment default   0
Without payment default   65
Puerto Rico | Commercial | Commercial multi-family | Current    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification   0
Puerto Rico | Commercial | CRE non-owner occupied    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 9,022 66,866
Puerto Rico | Commercial | CRE non-owner occupied | Past due    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 451 6,375
Puerto Rico | Commercial | CRE non-owner occupied | Past Due 30 To 59 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0 179
Puerto Rico | Commercial | CRE non-owner occupied | Past Due 60 To 89 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0 3,278
Puerto Rico | Commercial | CRE non-owner occupied | Past due 90 days or more    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 451 2,918
With payment default 0 0
Without payment default 451 2,918
Puerto Rico | Commercial | CRE non-owner occupied | Current    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 8,571 60,491
Puerto Rico | Commercial | CRE owner occupied    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 47,966 192,107
Puerto Rico | Commercial | CRE owner occupied | Past due    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 2,335 2,780
Puerto Rico | Commercial | CRE owner occupied | Past Due 30 To 59 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 85 811
Puerto Rico | Commercial | CRE owner occupied | Past Due 60 To 89 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 113 0
Puerto Rico | Commercial | CRE owner occupied | Past due 90 days or more    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 2,137 1,969
With payment default 257 537
Without payment default 1,880 1,432
Puerto Rico | Commercial | CRE owner occupied | Current    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 45,631 189,327
Puerto Rico | Commercial | Commercial and Industrial    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 173,273 49,629
Puerto Rico | Commercial | Commercial and Industrial | Past due    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 5,323 17,118
Puerto Rico | Commercial | Commercial and Industrial | Past Due 30 To 59 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 290 626
Puerto Rico | Commercial | Commercial and Industrial | Past Due 60 To 89 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 177 0
Puerto Rico | Commercial | Commercial and Industrial | Past due 90 days or more    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 4,856 16,492
With payment default 273 2,774
Without payment default 4,583 13,718
Puerto Rico | Commercial | Commercial and Industrial | Current    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 167,950 32,511
Puerto Rico | Consumer | Credit card    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 6,770 1,397
Puerto Rico | Consumer | Credit card | Past due    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 2,080 380
Puerto Rico | Consumer | Credit card | Past Due 30 To 59 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 699 126
Puerto Rico | Consumer | Credit card | Past Due 60 To 89 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 536 31
Puerto Rico | Consumer | Credit card | Past due 90 days or more    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 845 223
With payment default 503 159
Without payment default 342 64
Puerto Rico | Consumer | Credit card | Current    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 4,690 1,017
Puerto Rico | Consumer | Personal loans    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 14,991 4,276
Puerto Rico | Consumer | Personal loans | Past due    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 2,407 1,205
Puerto Rico | Consumer | Personal loans | Past Due 30 To 59 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 391 42
Puerto Rico | Consumer | Personal loans | Past Due 60 To 89 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 129 105
Puerto Rico | Consumer | Personal loans | Past due 90 days or more    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 1,887 1,058
With payment default 136 51
Without payment default 1,751 1,007
Puerto Rico | Consumer | Personal loans | Current    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 12,584 3,071
Puerto Rico | Consumer | Auto Loan    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 119 84
Puerto Rico | Consumer | Auto Loan | Past due    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0 13
Puerto Rico | Consumer | Auto Loan | Past Due 30 To 59 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0 0
Puerto Rico | Consumer | Auto Loan | Past Due 60 To 89 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0 0
Puerto Rico | Consumer | Auto Loan | Past due 90 days or more    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0 13
With payment default 0 0
Without payment default 0 13
Puerto Rico | Consumer | Auto Loan | Current    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 119 71
Puerto Rico | Consumer | Other    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 27 3
Puerto Rico | Consumer | Other | Past due    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0 0
Puerto Rico | Consumer | Other | Past Due 30 To 59 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0 0
Puerto Rico | Consumer | Other | Past Due 60 To 89 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0 0
Puerto Rico | Consumer | Other | Past due 90 days or more    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0 0
With payment default 0 0
Without payment default 0 0
Puerto Rico | Consumer | Other | Current    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 27 3
Popular U.S.    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 14,171 61,561
Popular U.S. | Past due    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 713 484
Popular U.S. | Past Due 30 To 59 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 14 0
Popular U.S. | Past Due 60 To 89 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0 0
Popular U.S. | Past due 90 days or more    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 699 484
With payment default 645 0
Without payment default 54 484
Popular U.S. | Current    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 13,458 61,077
Popular U.S. | Mortgages    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 1,495 3,727
Popular U.S. | Mortgages | Past due    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 699 324
Popular U.S. | Mortgages | Past Due 30 To 59 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0 0
Popular U.S. | Mortgages | Past Due 60 To 89 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0 0
Popular U.S. | Mortgages | Past due 90 days or more    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 699 324
With payment default 645 0
Without payment default 54 324
Popular U.S. | Mortgages | Current    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 796 3,403
Popular U.S. | Commercial | Commercial multi-family    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 5,804  
Popular U.S. | Commercial | Commercial multi-family | Past due    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0  
Popular U.S. | Commercial | Commercial multi-family | Past Due 30 To 59 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0  
Popular U.S. | Commercial | Commercial multi-family | Past Due 60 To 89 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0  
Popular U.S. | Commercial | Commercial multi-family | Past due 90 days or more    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0  
With payment default 0  
Without payment default 0  
Popular U.S. | Commercial | Commercial multi-family | Current    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 5,804  
Popular U.S. | Commercial | CRE owner occupied    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 5,953 57,550
Popular U.S. | Commercial | CRE owner occupied | Past due    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0 0
Popular U.S. | Commercial | CRE owner occupied | Past Due 30 To 59 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0 0
Popular U.S. | Commercial | CRE owner occupied | Past Due 60 To 89 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0 0
Popular U.S. | Commercial | CRE owner occupied | Past due 90 days or more    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0 0
With payment default 0 0
Without payment default 0 0
Popular U.S. | Commercial | CRE owner occupied | Current    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 5,953 57,550
Popular U.S. | Commercial | Commercial and Industrial    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 684  
Popular U.S. | Commercial | Commercial and Industrial | Past due    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0  
Popular U.S. | Commercial | Commercial and Industrial | Past Due 30 To 59 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0  
Popular U.S. | Commercial | Commercial and Industrial | Past Due 60 To 89 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0  
Popular U.S. | Commercial | Commercial and Industrial | Past due 90 days or more    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0  
With payment default 0  
Without payment default 0  
Popular U.S. | Commercial | Commercial and Industrial | Current    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 684  
Popular U.S. | Consumer | Personal loans    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 235 284
Popular U.S. | Consumer | Personal loans | Past due    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 14 160
Popular U.S. | Consumer | Personal loans | Past Due 30 To 59 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 14 0
Popular U.S. | Consumer | Personal loans | Past Due 60 To 89 Days    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0 0
Popular U.S. | Consumer | Personal loans | Past due 90 days or more    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification 0 160
With payment default 0 0
Without payment default 0 160
Popular U.S. | Consumer | Personal loans | Current    
Financing Receivable, Modifications [Line Items]    
Loan performance in the last 12 months after modification $ 221 $ 124