Cost of equity to discoun 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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- Definition

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

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- Definition

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 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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Note Goodwill and other intangible assets - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Aug. 01, 2018	Jul. 31, 2018
Goodwill and Intangible Assets Disclosure [Line Items]
Amortization Of Intangible Assets	$ 9,326	$ 9,378	$ 12,144
Trademark recognized	6,100	$ 6,100
Goodwill on acquisition	60,242
Maximum \| Discounted cash flow approach
Goodwill and Intangible Assets Disclosure [Line Items]
Cost of equity discount rate					13.93%
Minimum \| Discounted cash flow approach
Goodwill and Intangible Assets Disclosure [Line Items]
Cost of equity discount rate					11.42%
Reliable Financial Services
Goodwill and Intangible Assets Disclosure [Line Items]
Trademark recognized				$ 488
Banco Popular de Puerto Rico and Popular Bank
Goodwill and Intangible Assets Disclosure [Line Items]
Percentage Of Goodwill					98.00%
PB
Goodwill and Intangible Assets Disclosure [Line Items]
Step 1 Fair Value Excess Over Carrying Amount					$ 407,000
Percentage excess of fair value of reporting unit over equity value					28.00%
BPPR
Goodwill and Intangible Assets Disclosure [Line Items]
Step 1 Fair Value Excess Over Carrying Amount					$ 2,400,000
Percentage excess of fair value of reporting unit over equity value					77.00%
Goodwill on acquisition	60,242
BPPR \| Reliable Financial Services
Goodwill and Intangible Assets Disclosure [Line Items]
Goodwill on acquisition	$ 43,800