Income taxes - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Income Taxes
Valuation allowance	$ 568,966,000		$ 568,966,000		$ 539,527,000
Net deferred tax assets (net of valuation allowance)	817,867,000		817,867,000		657,597,000
Net deferred tax asset	816,350,000		816,350,000		656,772,000
Unrecognized tax benefits, accrued interest	2,900,000		2,900,000		2,800,000
Recognized Tax Benefits Current Interest On Income Taxes Accrued			165,000	$ 727,000
Accrual for the payment of penalties	0		0		0
Total amount of unrecognized tax benefits, that if recognized, would affect effective tax rate	5,700,000		5,700,000		5,500,000
Anticipated reduction in the total amount of unrecognized tax benefits within the next 12 months	1,500,000		1,500,000
Income tax expense	64,212,000	$ 73,093,000	114,691,000	149,924,000
Other assets
Income Taxes
Net deferred tax assets (net of valuation allowance)	800,000,000		800,000,000		700,000,000
Other liabilities
Income Taxes
Net deferred tax liabilities	1,500,000		1,500,000		825,000
Popular, Inc Holding Co
Income Taxes
Valuation allowance	134,000,000		134,000,000
PR
Income Taxes
Valuation allowance	134,495,000		134,495,000		128,557,000
Net deferred tax asset	587,711,000		587,711,000		407,537,000
Income tax expense	64,212,000	$ 73,093,000	114,691,000	$ 149,924,000
US
Income Taxes
Valuation allowance	434,471,000		434,471,000		410,970,000
Net deferred tax asset	228,639,000		228,639,000		$ 249,235,000
Deferred Tax Assets	$ 663,000,000		$ 663,000,000