Revenue from contracts with customers - Revenue streams (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Service charges on deposit accounts
Revenue from contract with customer	$ 34,678	$ 40,713
BPPR
Revenue from contract with customer	104,526	101,747
BPPR | Service charges on deposit accounts
Revenue from contract with customer	32,152	37,985
BPPR | Debit card fees
Revenue from contract with customer	12,948	11,562
BPPR | Insurance fees, excluding reinsurance
Revenue from contract with customer	10,798	10,038
BPPR | Credit card fees excluding late fees and membership fees
Revenue from contract with customer	36,174	30,222
BPPR | Sale and administration of investment products
Revenue from contract with customer	6,558	5,791
BPPR | Trust fees
Revenue from contract with customer	5,896	6,149
Popular U.S.
Revenue from contract with customer	4,630	4,591
Popular U.S. | Service charges on deposit accounts
Revenue from contract with customer	2,526	2,728
Popular U.S. | Debit card fees
Revenue from contract with customer	218	217
Popular U.S. | Insurance fees, excluding reinsurance
Revenue from contract with customer	1,307	1,322
Popular U.S. | Credit card fees excluding late fees and membership fees
Revenue from contract with customer	579	324
Popular U.S. | Sale and administration of investment products
Revenue from contract with customer	0	0
Popular U.S. | Trust fees
Revenue from contract with customer	$ 0	$ 0