Borrowings - Schedule of Borrowings by Contractual Maturities (Details) $ in Thousands	Jun. 30, 2026 USD ($)
Schedule Of Repurchase Agreements [Line Items]
2026	$ 777,021
2027	6,113
2029	441,627
2030	39,657
Later years	198,413
Total borrowings	1,462,831
Assets sold under agreements to repurchase
Schedule Of Repurchase Agreements [Line Items]
2026	77,521
2027	0
2029	0
2030	0
Later years	0
Total borrowings	77,521
Short-term borrowings
Schedule Of Repurchase Agreements [Line Items]
2026	675,000
2027	0
2029	0
2030	0
Later years	0
Total borrowings	675,000
Notes payable
Schedule Of Repurchase Agreements [Line Items]
2026	24,500
2027	6,113
2029	441,627
2030	39,657
Later years	198,413
Total borrowings	$ 710,310

Amount of borrowings maturing in year five following the date of the latest balance sheet presented in the financial statements.

No definition available.

Name:	bpop_DebtMaturitiesRepaymentsOfPrincipalInYearFive
Namespace Prefix:	bpop_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of borrowings maturing in year four following the date of the latest balance sheet presented in the financial statements.

No definition available.

Name:	bpop_DebtMaturitiesRepaymentsOfPrincipalInYearFour
Namespace Prefix:	bpop_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of borrowings maturing in year one following the date of the latest balance sheet presented in the financial statements.

No definition available.

Name:	bpop_DebtMaturitiesRepaymentsOfPrincipalInYearOne
Namespace Prefix:	bpop_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of borrowins maturing in year two following the date of the latest balance sheet presented in the financial statements.

No definition available.

Name:	bpop_DebtMaturitiesRepaymentsOfPrincipalInYearTwo
Namespace Prefix:	bpop_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of borrowings maturing after year five following the date of the latest balance sheet presented in the financial statements.

No definition available.

Name:	bpop_DebtMaturitiesRepaymentsOfPrincipalThereafter
Namespace Prefix:	bpop_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Schedule Of Repurchase Agreements [Line Items]

No definition available.

Name:	bpop_ScheduleOfRepurchaseAgreementsLineItems
Namespace Prefix:	bpop_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Amount of short-term and long-term debt and lease obligation.

No definition available.

Name:	us-gaap_DebtAndCapitalLeaseObligations
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Name:	us-gaap_DebtInstrumentAxis=us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_DebtInstrumentAxis=us-gaap_ShortTermDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_DebtInstrumentAxis=us-gaap_LongTermDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: