Cost of equity to discount the cash flow using the ibbotson build-up method.

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Goodwill and Intangible Assets Disclosure [Line Items]

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The percentage of goodwill from two subsidiaries to total goodwill as of the balance sheet date if other than 100 percent.

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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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The amount of identifiable intangible assets recognized as of the acquisition date.

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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of fair value of reporting unit in excess of carrying amount.

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Percentage of fair value of reporting unit in excess of carrying amount.

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Goodwill and other intangible assets - Additional Information (Details) - USD ($)	1 Months Ended	3 Months Ended	12 Months Ended
	Jul. 31, 2022	Sep. 30, 2022	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Oct. 15, 2021	Jul. 31, 2021
Goodwill and Intangible Assets Disclosure [Line Items]
Amortization Of Intangible Assets			$ 3,275,000	$ 9,134,000	$ 6,397,000
Goodwill on acquisition			116,135,000	49,171,000
Goodwill impairment charge			9,000,000	0	$ 0
Popular Equipment Finance
Goodwill and Intangible Assets Disclosure [Line Items]
Goodwill impairment charge	$ 9,000,000		$ 9,000,000
K2 Capital Group LLC
Goodwill and Intangible Assets Disclosure [Line Items]
Identifiable intangible assets						$ 2,887,000
Goodwill impairment charge		$ 9,000,000.0
Discounted cash flow approach \| Minimum
Goodwill and Intangible Assets Disclosure [Line Items]
Cost of equity discount rate			12.51%
Discounted cash flow approach \| Maximum
Goodwill and Intangible Assets Disclosure [Line Items]
Cost of equity discount rate			15.73%
Trademarks \| E-Loan
Goodwill and Intangible Assets Disclosure [Line Items]
Identifiable intangible assets			$ 700,000	700,000
Banco Popular de Puerto Rico
Goodwill and Intangible Assets Disclosure [Line Items]
Step 1 Fair Value Excess Over Carrying Amount	$ 3,100,000,000						$ 1,500,000,000
Percentage excess of fair value of reporting unit over equity value	245.00%						50.00%
Goodwill on acquisition			116,135,000	0
Goodwill impairment charge			0	0
Banco Popular de Puerto Rico \| EVERTEC Assets
Goodwill and Intangible Assets Disclosure [Line Items]
Goodwill on acquisition			116,100,000
Popular U.S.
Goodwill and Intangible Assets Disclosure [Line Items]
Step 1 Fair Value Excess Over Carrying Amount	$ 670,000,000						$ 412,000,000
Percentage excess of fair value of reporting unit over equity value	41.00%						24.00%
Goodwill on acquisition			0	49,171,000
Goodwill impairment charge			$ 9,000,000	0
Popular U.S. \| K2 Capital Group LLC
Goodwill and Intangible Assets Disclosure [Line Items]
Goodwill on acquisition				$ 49,000,000
Banco Popular de Puerto Rico and Popular Bank
Goodwill and Intangible Assets Disclosure [Line Items]
Percentage Of Goodwill	93.00%