Segment Reporting - Additional Information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) units	Jun. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)
Segment Reporting Information
Number Of Operating Segments | units			2
Factors Used To Identify Entitys Reportable Segments			Banco Popular de Puerto Rico and Popular U.S. Management determined the reportable segments based on the internal reporting used to evaluate performance and to assess where to allocate resources.
Net Revenue	$ 692,139	$ 691,273	$ 1,385,756	$ 1,340,277
Assets	70,838,266	71,501,931	70,838,266	71,501,931	$ 67,637,917
US
Segment Reporting Information
Net Revenue	132,720	111,369	257,765	214,543
Assets	13,907,471		13,907,471		12,718,775
Other
Segment Reporting Information
Net Revenue	23,344	19,269	44,013	37,426
Assets	1,211,505		1,211,505		1,377,715
Banco Popular de Puerto Rico
Segment Reporting Information
Bank loan origination	3,000	$ 93,000	23,000	93,000
Banco Popular de Puerto Rico | US
Segment Reporting Information
Net Revenue			55,500	26,100
Assets	$ 1,400,000		1,400,000		$ 1,200,000
Banco Popular de Puerto Rico | Other
Segment Reporting Information
Net Revenue			$ 22,700	$ 22,300