XML 257 R208.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Employee benefits - Additional information (Detail) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Fair Value, Transfers Between Level 1 and Level 2, Description and Policy [Abstract] |  |  |
Transfers in or out of Level 1 | $ 0 | $ 0 |
Transfers in or out of Level 2 | 0 | 0 |
Transfers in or out of Level 3 | 0 | 0 |
Savings Plans |  |  |
Fair Value, Transfers Between Level 1 and Level 2, Description and Policy [Abstract] |  |  |
Savings Plans | 105,000,000 | 77,000,000 |
Savings Plans Contributions | $ 13,300,000 | $ 14,000,000.0 | $ 15,100,000
Savings Plans Stocks Held | 1,279,982 | 1,362,593 |

X
- Definition Value of stock in an investment or savings plan established by the entity for the benefit of its employees that permits the employees to make investment decisions. + References No definition available. + Details
Name: | bpop_SavingsPlans
Namespace Prefix: | bpop_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of cash or cash equivalents contributed by the entity to fund its savings plans. + References No definition available. + Details
Name: | bpop_SavingsPlansContributions
Namespace Prefix: | bpop_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Number of shares of stock held by the plan. + References No definition available. + Details
Name: | bpop_SavingsPlansStocksHeld
Namespace Prefix: | bpop_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount, measured using unobservable inputs, of increase (decrease) in plan assets of defined benefit plan, for assets transferred into (out of) Level 3 of fair value hierarchy. Includes, but is not limited to, transfer due to change in observability of significant inputs. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(02)(C) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 + Details
Name: | us-gaap_DefinedBenefitPlanTransfersBetweenMeasurementLevels
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of transfers of assets measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bb) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
Name: | us-gaap_FairValueAssetsLevel1ToLevel2TransfersAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of transfers of assets measured on a recurring basis out of Level 2 of the fair value hierarchy into Level 1. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bb) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
Name: | us-gaap_FairValueAssetsLevel2ToLevel1TransfersAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_FairValueTransfersBetweenLevel1AndLevel2DescriptionAndPolicyAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_RetirementPlanTypeAxis=bpop_SavingsPlansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |