v3.26.1
Loans - Schedule of Amortized Cost Basis of Collateral-dependent Loans (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP $ 39,749,862 $ 39,327,518
BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 27,976,836 27,658,628
Popular U.S.    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 11,773,026 11,668,890
Total    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 337,806 337,423
Total | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 243,309 248,015
Total | Popular U.S.    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 94,497 89,408
Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 270,813 312,021
Real Estate | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 178,316 224,411
Real Estate | Popular U.S.    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 92,497 87,610
Auto    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 18,782 18,468
Auto | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 18,782 18,468
Auto | Popular U.S.    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Equipment    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 571 4,476
Equipment | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 571 4,476
Equipment | Popular U.S.    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 47,640 2,458
Other | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 45,640 660
Other | Popular U.S.    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 2,000 1,798
Mortgage    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 8,780,334 8,649,440
Mortgage | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 7,529,550 7,347,967
Mortgage | Popular U.S.    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 1,250,784 1,301,473
Mortgage | Total    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 62,947 68,778
Mortgage | Total | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 61,541 67,380
Mortgage | Total | Popular U.S.    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 1,406 1,398
Mortgage | Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 62,947 68,778
Mortgage | Real Estate | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 61,541 67,380
Mortgage | Real Estate | Popular U.S.    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 1,406 1,398
Mortgage | Auto    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Mortgage | Auto | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Mortgage | Auto | Popular U.S.    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Mortgage | Equipment    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Mortgage | Equipment | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Mortgage | Equipment | Popular U.S.    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Mortgage | Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Mortgage | Other | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Mortgage | Other | Popular U.S.    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Commercial | Commercial multi-family    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 2,399,424 2,455,790
Commercial | Commercial multi-family | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 345,959 303,348
Commercial | Commercial multi-family | Popular U.S.    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 2,053,465 2,152,442
Commercial | Commercial multi-family | Total    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 13,732 17,601
Commercial | Commercial multi-family | Total | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 1,173 1,206
Commercial | Commercial multi-family | Total | Popular U.S.    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 12,559 16,395
Commercial | Commercial multi-family | Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 13,732 17,601
Commercial | Commercial multi-family | Real Estate | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 1,173 1,206
Commercial | Commercial multi-family | Real Estate | Popular U.S.    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 12,559 16,395
Commercial | Commercial multi-family | Auto    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Commercial | Commercial multi-family | Auto | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0
Commercial | Commercial multi-family | Auto | Popular U.S.    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Commercial | Commercial multi-family | Equipment    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Commercial | Commercial multi-family | Equipment | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0
Commercial | Commercial multi-family | Equipment | Popular U.S.    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Commercial | Commercial multi-family | Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Commercial | Commercial multi-family | Other | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Commercial | Commercial multi-family | Other | Popular U.S.    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Commercial | Non-owner occupied    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 5,620,875 5,543,284
Commercial | Non-owner occupied | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 3,321,095 3,395,130
Commercial | Non-owner occupied | Popular U.S.    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 2,299,780 2,148,154
Commercial | Non-owner occupied | Total    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 160,956 192,661
Commercial | Non-owner occupied | Total | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 95,379 127,031
Commercial | Non-owner occupied | Total | Popular U.S.    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 65,577 65,630
Commercial | Non-owner occupied | Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 160,956 192,661
Commercial | Non-owner occupied | Real Estate | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 95,379 127,031
Commercial | Non-owner occupied | Real Estate | Popular U.S.    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 65,577 65,630
Commercial | Non-owner occupied | Auto    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Commercial | Non-owner occupied | Auto | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Commercial | Non-owner occupied | Auto | Popular U.S.    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Commercial | Non-owner occupied | Equipment    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Commercial | Non-owner occupied | Equipment | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Commercial | Non-owner occupied | Equipment | Popular U.S.    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Commercial | Non-owner occupied | Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Commercial | Non-owner occupied | Other | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Commercial | Non-owner occupied | Other | Popular U.S.    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Commercial | Owner occupied    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 3,256,702 3,153,080
Commercial | Owner occupied | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 1,156,681 1,196,593
Commercial | Owner occupied | Popular U.S.    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 2,100,021 1,956,487
Commercial | Owner occupied | Total    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 21,907 23,014
Commercial | Owner occupied | Total | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 13,042 23,014
Commercial | Owner occupied | Total | Popular U.S.    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 8,865  
Commercial | Owner occupied | Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 21,907 23,014
Commercial | Owner occupied | Real Estate | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 13,042 23,014
Commercial | Owner occupied | Real Estate | Popular U.S.    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 8,865  
Commercial | Owner occupied | Auto    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Commercial | Owner occupied | Auto | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Commercial | Owner occupied | Auto | Popular U.S.    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP  
Commercial | Owner occupied | Equipment    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Commercial | Owner occupied | Equipment | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Commercial | Owner occupied | Equipment | Popular U.S.    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP  
Commercial | Owner occupied | Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Commercial | Owner occupied | Other | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Commercial | Owner occupied | Other | Popular U.S.    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP  
Commercial | Commercial and industrial    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 8,774,084 8,607,412
Commercial | Commercial and industrial | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 6,163,068 5,970,073
Commercial | Commercial and industrial | Popular U.S.    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 2,611,016 2,637,339
Commercial | Commercial and industrial | Total    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 54,532 13,136
Commercial | Commercial and industrial | Total | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 48,442 7,151
Commercial | Commercial and industrial | Total | Popular U.S.    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 6,090 5,985
Commercial | Commercial and industrial | Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 7,403 6,565
Commercial | Commercial and industrial | Real Estate | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 3,313 2,378
Commercial | Commercial and industrial | Real Estate | Popular U.S.    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 4,090 4,187
Commercial | Commercial and industrial | Auto    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Commercial | Commercial and industrial | Auto | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Commercial | Commercial and industrial | Auto | Popular U.S.    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Commercial | Commercial and industrial | Equipment    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 571 4,476
Commercial | Commercial and industrial | Equipment | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 571 4,476
Commercial | Commercial and industrial | Equipment | Popular U.S.    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Commercial | Commercial and industrial | Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 46,558 2,095
Commercial | Commercial and industrial | Other | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 44,558 297
Commercial | Commercial and industrial | Other | Popular U.S.    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 2,000 1,798
Leasing    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 1,968,035 2,001,365
Leasing | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 1,968,035 2,001,365
Leasing | Total    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 1,705 1,925
Leasing | Total | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 1,705 1,925
Leasing | Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Leasing | Real Estate | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0
Leasing | Auto    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 1,705 1,925
Leasing | Auto | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 1,705 1,925
Leasing | Equipment    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Leasing | Equipment | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Leasing | Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Leasing | Other | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Consumer | Personal    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 1,952,725 1,906,228
Consumer | Personal | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 1,896,019 1,836,402
Consumer | Personal | Popular U.S.    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 56,706 69,826
Consumer | Personal | Total    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 3,868 3,402
Consumer | Personal | Total | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 3,868 3,402
Consumer | Personal | Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 3,868 3,402
Consumer | Personal | Real Estate | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 3,868 3,402
Consumer | Personal | Auto    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Consumer | Personal | Auto | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Consumer | Personal | Equipment    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Consumer | Personal | Equipment | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Consumer | Personal | Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Consumer | Personal | Other | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Consumer | Auto    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 3,766,648 3,819,812
Consumer | Auto | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 3,766,648 3,819,812
Consumer | Auto | Total    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 17,067 16,512
Consumer | Auto | Total | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 17,067 16,512
Consumer | Auto | Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Consumer | Auto | Real Estate | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0
Consumer | Auto | Auto    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 17,067 16,512
Consumer | Auto | Auto | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 17,067 16,512
Consumer | Auto | Equipment    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Consumer | Auto | Equipment | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Consumer | Auto | Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Consumer | Auto | Other | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Consumer | Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 175,606 180,799
Consumer | Other | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 164,069 171,758
Consumer | Other | Popular U.S.    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 11,537 9,041
Consumer | Other | Total    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 1,092 394
Consumer | Other | Total | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 1,092 394
Consumer | Other | Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Consumer | Other | Real Estate | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0
Consumer | Other | Auto    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 10 31
Consumer | Other | Auto | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 10 31
Consumer | Other | Equipment    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Consumer | Other | Equipment | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 0 0
Consumer | Other | Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP 1,082 363
Consumer | Other | Other | BPPR    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans HIP $ 1,082 $ 363