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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 after accumulated impairment loss of an asset representing 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 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 increase (decrease) of an asset representing 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 ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Jul. 31, 2022	Dec. 31, 2021	Jul. 31, 2021
Goodwill and other intangible assets
Amortization Of Intangible Assets	$ 795,000	$ 783,000	$ 2,481,000	$ 3,089,000
Identifiable intangible assets	700,000		700,000			$ 700,000
Goodwill on acquisition			116,135,000	0
Changes in the carrying amount of goodwill	0	0		0
Goodwill impairment charge	9,000,000	$ 0	9,000,000	$ 0
Goodwill	$ 827,428,000		827,428,000			720,293,000
Popular Equipment Finance
Goodwill and other intangible assets
Goodwill impairment charge			$ 9,000,000
Discounted cash flow approach \| Minimum
Goodwill and other intangible assets
Cost of equity discount rate	12.51%		12.51%
Discounted cash flow approach \| Maximum
Goodwill and other intangible assets
Cost of equity discount rate	15.73%		15.73%
Banco Popular de Puerto Rico
Goodwill and other intangible assets
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
Goodwill impairment charge			0
Goodwill	$ 436,383,000		436,383,000			320,248,000
Banco Popular de Puerto Rico \| EVERTEC Assets
Goodwill and other intangible assets
Goodwill on acquisition			116,100,000
Popular U.S.
Goodwill and other intangible assets
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
Goodwill impairment charge			9,000,000
Goodwill	$ 391,045,000		$ 391,045,000			$ 400,045,000
Banco Popular de Puerto Rico and Popular Bank
Goodwill and other intangible assets
Percentage Of Goodwill					93.00%