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NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Nature of business (Detail)	Dec. 31, 2022 offices numberofbranches
FirstBank [Member] | PUERTO RICO
Nature Of Business [Line Items]
Banking branches	59
FirstBank [Member] | U S [Member]
Nature Of Business [Line Items]
Banking branches	9
FirstBank [Member] | USVI and BVI [Member]
Nature Of Business [Line Items]
Banking branches	8
First Federal Finance Corp [Member] | PUERTO RICO
Nature Of Business [Line Items]
Offices | offices	27

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Represents the number of banking branches.

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- Definition

Represents the number of offices.

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- Details

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