Segment reporting - Geographic information (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020
Segment Reporting Information
Net Revenue	$ 632,765	$ 599,738
PR
Segment Reporting Information
Net Revenue	518,709	489,636
US
Segment Reporting Information
Net Revenue	96,012	91,679
Other
Segment Reporting Information
Net Revenue	$ 18,044	$ 18,423

Aggregate revenue, net of interest expense, recognized during the period. It includes Net interest income plus other income (service charge on deposit accounts, other service fees, net gain on sale and valuation adjustments of investment securities, trading account profit, net gain on sale of loans and valuation adjustments on loans held-for-sale, adjustments to indemnity reserves on loans sold, FDIC loss share income, fair value change in equity appreciation instrument and other operating income.

No definition available.

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Namespace Prefix:	bpop_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration