Income taxes - Additional Information (Details) - USD ($)	3 Months Ended						9 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Income Taxes
Valuation allowance	$ 582,663,000						$ 582,663,000		$ 539,527,000
Net deferred tax assets (net of valuation allowance)	907,419,000						907,419,000		657,597,000
Net deferred tax asset	905,207,000						905,207,000		656,772,000
Unrecognized tax benefits, accrued interest	2,500,000						2,500,000		2,800,000
Recognized Tax Benefits Current Interest On Income Taxes Accrued							202,000	$ 810,000
Accrual for the payment of penalties	0						0		0
Total amount of unrecognized tax benefits, that if recognized, would affect effective tax rate	4,300,000						4,300,000		5,500,000
Anticipated reduction in the total amount of unrecognized tax benefits within the next 12 months	1,500,000						1,500,000
Interest Expense Reversal Due To Expiration Of The Statute Of Limitation							448,000	2,900,000
Income tax expense	67,986,000			$ 83,542,000			182,677,000	233,466,000
Reduction as a result of lapse of statute of limitations	1,100,000	$ 0	$ 0	0	$ 0	$ 0
Other assets
Income Taxes
Net deferred tax assets (net of valuation allowance)	900,000,000						900,000,000		700,000,000
Other liabilities
Income Taxes
Net deferred tax liabilities	2,200,000						2,200,000		869,000
Popular, Inc Holding Co
Income Taxes
Valuation allowance	138,000,000						138,000,000
PR
Income Taxes
Valuation allowance	138,219,000						138,219,000		128,557,000
Net deferred tax asset	685,931,000						685,931,000		407,537,000
Income tax expense	67,986,000			$ 83,542,000			182,677,000	$ 233,466,000
US
Income Taxes
Valuation allowance	444,444,000						444,444,000		410,970,000
Net deferred tax asset	219,276,000						219,276,000		$ 249,235,000
Deferred Tax Assets	$ 663,000,000						$ 663,000,000