Income taxes - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Income Taxes [Line Items]
Valuation allowance	$ 534,488,000		$ 540,196,000
Net deferred tax assets (net of valuation allowance)	907,689,000		953,676,000
Net deferred tax asset	904,516,000		951,037,000
Unrecognized tax benefits, accrued interest	2,600,000		2,600,000
Recognized Tax Benefits Current Interest On Income Taxes Accrued	56,000	$ 83,000
Accrual for the payment of penalties	0		0
Total amount of unrecognized tax benefits, that if recognized, would affect effective tax rate	4,300,000		4,300,000
Income tax expense	46,314,000	50,479,000
Other assets
Income Taxes [Line Items]
Net deferred tax assets (net of valuation allowance)	900,000,000		1,000,000,000.0
Other liabilities
Income Taxes [Line Items]
Net deferred tax liabilities	3,200,000		2,600,000
Popular, Inc Holding Co
Income Taxes [Line Items]
Valuation allowance	138,000,000
PR
Income Taxes [Line Items]
Valuation allowance	138,016,000		137,863,000
Net deferred tax asset	630,178,000		673,045,000
Income tax expense	46,314,000	$ 50,479,000
US
Income Taxes [Line Items]
Valuation allowance	396,472,000		402,333,000
Net deferred tax asset	274,338,000		$ 277,992,000
Deferred Tax Assets	$ 671,000,000