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LOANS HELD FOR INVESTMENT - Corporation's Residential Mortgage Loans by Origination Year Based on Original Loan-To-Value-Ratio (Detail) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | $ 11,140,582 | $ 11,777,289
Puerto Rico and Virgin Islands regions [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 9,150,483 | 9,788,106
Florida region [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 1,990,099 | 1,989,183
Residential Portfolio Segment [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, Originated in Current Fiscal Year | 91,132 |
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year | 73,910 |
Financing Receivable, Originated Two Years before Latest Fiscal Year | 108,810 |
Financing Receivable, Originated Three Years before Latest Fiscal Year | 145,944 |
Financing Receivable, Originated Four Years before Latest Fiscal Year | 135,486 |
Financing Receivable, Originated Five or More Years before Latest Fiscal Year | 2,539,733 |
Financing Receivable, Revolving | 0 |
Financing Receivable, before Allowance for Credit Loss | 3,095,015 | 3,521,954
Residential Portfolio Segment [Member] | Puerto Rico and Virgin Islands regions [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, Originated in Current Fiscal Year | 51,211 |
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year | 35,549 |
Financing Receivable, Originated Two Years before Latest Fiscal Year | 62,409 |
Financing Receivable, Originated Three Years before Latest Fiscal Year | 92,201 |
Financing Receivable, Originated Four Years before Latest Fiscal Year | 69,713 |
Financing Receivable, Originated Five or More Years before Latest Fiscal Year | 2,330,080 |
Financing Receivable, Revolving | 0 |
Financing Receivable, before Allowance for Credit Loss | 2,641,163 | 3,002,203
Residential Portfolio Segment [Member] | Florida region [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, Originated in Current Fiscal Year | 39,921 |
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year | 38,361 |
Financing Receivable, Originated Two Years before Latest Fiscal Year | 46,401 |
Financing Receivable, Originated Three Years before Latest Fiscal Year | 53,743 |
Financing Receivable, Originated Four Years before Latest Fiscal Year | 65,773 |
Financing Receivable, Originated Five or More Years before Latest Fiscal Year | 209,653 |
Financing Receivable, Revolving | 0 |
Financing Receivable, before Allowance for Credit Loss | 453,852 | 519,751
Residential Portfolio Segment [Member] | FHA/VA government-guaranteed loans [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, Originated in Current Fiscal Year | 0 |
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year | 359 |
Financing Receivable, Originated Two Years before Latest Fiscal Year | 1,090 |
Financing Receivable, Originated Three Years before Latest Fiscal Year | 2,168 |
Financing Receivable, Originated Four Years before Latest Fiscal Year | 4,134 |
Financing Receivable, Originated Five or More Years before Latest Fiscal Year | 126,534 |
Financing Receivable, Revolving | 0 |
Financing Receivable, before Allowance for Credit Loss | 134,285 | 150,734
Residential Portfolio Segment [Member] | FHA/VA government-guaranteed loans [Member] | Puerto Rico and Virgin Islands regions [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, Originated in Current Fiscal Year | 0 |
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year | 359 |
Financing Receivable, Originated Two Years before Latest Fiscal Year | 1,090 |
Financing Receivable, Originated Three Years before Latest Fiscal Year | 2,168 |
Financing Receivable, Originated Four Years before Latest Fiscal Year | 4,134 |
Financing Receivable, Originated Five or More Years before Latest Fiscal Year | 125,661 |
Financing Receivable, Revolving | 0 |
Financing Receivable, before Allowance for Credit Loss | 133,412 | 149,564
Residential Portfolio Segment [Member] | FHA/VA government-guaranteed loans [Member] | Florida region [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, Originated in Current Fiscal Year | 0 |
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year | 0 |
Financing Receivable, Originated Two Years before Latest Fiscal Year | 0 |
Financing Receivable, Originated Three Years before Latest Fiscal Year | 0 |
Financing Receivable, Originated Four Years before Latest Fiscal Year | 0 |
Financing Receivable, Originated Five or More Years before Latest Fiscal Year | 873 |
Financing Receivable, Revolving | 0 |
Financing Receivable, before Allowance for Credit Loss | 873 | 1,170
Residential Portfolio Segment [Member] | Conventional residential mortgage loans [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 2,960,730 | 3,371,220
Residential Portfolio Segment [Member] | Conventional residential mortgage loans [Member] | Puerto Rico and Virgin Islands regions [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 2,507,751 | 2,852,639
Residential Portfolio Segment [Member] | Conventional residential mortgage loans [Member] | Florida region [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | 452,979 | 518,581
Residential Portfolio Segment [Member] | Conventional residential mortgage loans [Member] | Less than or equal to 90 percent [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, Originated in Current Fiscal Year | 85,963 |
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year | 68,056 |
Financing Receivable, Originated Two Years before Latest Fiscal Year | 98,652 |
Financing Receivable, Originated Three Years before Latest Fiscal Year | 131,525 |
Financing Receivable, Originated Four Years before Latest Fiscal Year | 120,449 |
Financing Receivable, Originated Five or More Years before Latest Fiscal Year | 1,724,477 |
Financing Receivable, Revolving | 0 |
Financing Receivable, before Allowance for Credit Loss | 2,229,122 | 2,526,587
Residential Portfolio Segment [Member] | Conventional residential mortgage loans [Member] | Less than or equal to 90 percent [Member] | Puerto Rico and Virgin Islands regions [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, Originated in Current Fiscal Year | 48,455 |
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year | 33,546 |
Financing Receivable, Originated Two Years before Latest Fiscal Year | 53,445 |
Financing Receivable, Originated Three Years before Latest Fiscal Year | 79,273 |
Financing Receivable, Originated Four Years before Latest Fiscal Year | 58,300 |
Financing Receivable, Originated Five or More Years before Latest Fiscal Year | 1,518,623 |
Financing Receivable, Revolving | 0 |
Financing Receivable, before Allowance for Credit Loss | 1,791,642 | 2,029,177
Residential Portfolio Segment [Member] | Conventional residential mortgage loans [Member] | Less than or equal to 90 percent [Member] | Florida region [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, Originated in Current Fiscal Year | 37,508 |
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year | 34,510 |
Financing Receivable, Originated Two Years before Latest Fiscal Year | 45,207 |
Financing Receivable, Originated Three Years before Latest Fiscal Year | 52,252 |
Financing Receivable, Originated Four Years before Latest Fiscal Year | 62,149 |
Financing Receivable, Originated Five or More Years before Latest Fiscal Year | 205,854 |
Financing Receivable, Revolving | 0 |
Financing Receivable, before Allowance for Credit Loss | 437,480 | 497,410
Residential Portfolio Segment [Member] | Conventional residential mortgage loans [Member] | Greater than 90 percent but less than or equal to 100 percent [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, Originated in Current Fiscal Year | 3,054 |
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year | 5,495 |
Financing Receivable, Originated Two Years before Latest Fiscal Year | 8,139 |
Financing Receivable, Originated Three Years before Latest Fiscal Year | 8,876 |
Financing Receivable, Originated Four Years before Latest Fiscal Year | 8,363 |
Financing Receivable, Originated Five or More Years before Latest Fiscal Year | 607,414 |
Financing Receivable, Revolving | 0 |
Financing Receivable, before Allowance for Credit Loss | 641,341 | 746,220
Residential Portfolio Segment [Member] | Conventional residential mortgage loans [Member] | Greater than 90 percent but less than or equal to 100 percent [Member] | Puerto Rico and Virgin Islands regions [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, Originated in Current Fiscal Year | 641 |
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year | 1,644 |
Financing Receivable, Originated Two Years before Latest Fiscal Year | 6,945 |
Financing Receivable, Originated Three Years before Latest Fiscal Year | 7,385 |
Financing Receivable, Originated Four Years before Latest Fiscal Year | 4,739 |
Financing Receivable, Originated Five or More Years before Latest Fiscal Year | 604,488 |
Financing Receivable, Revolving | 0 |
Financing Receivable, before Allowance for Credit Loss | 625,842 | 725,049
Residential Portfolio Segment [Member] | Conventional residential mortgage loans [Member] | Greater than 90 percent but less than or equal to 100 percent [Member] | Florida region [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, Originated in Current Fiscal Year | 2,413 |
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year | 3,851 |
Financing Receivable, Originated Two Years before Latest Fiscal Year | 1,194 |
Financing Receivable, Originated Three Years before Latest Fiscal Year | 1,491 |
Financing Receivable, Originated Four Years before Latest Fiscal Year | 3,624 |
Financing Receivable, Originated Five or More Years before Latest Fiscal Year | 2,926 |
Financing Receivable, Revolving | 0 |
Financing Receivable, before Allowance for Credit Loss | 15,499 | 21,171
Residential Portfolio Segment [Member] | Conventional residential mortgage loans [Member] | Greater than 100 percent [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, Originated in Current Fiscal Year | 2,115 |
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year | 0 |
Financing Receivable, Originated Two Years before Latest Fiscal Year | 929 |
Financing Receivable, Originated Three Years before Latest Fiscal Year | 3,375 |
Financing Receivable, Originated Four Years before Latest Fiscal Year | 2,540 |
Financing Receivable, Originated Five or More Years before Latest Fiscal Year | 81,308 |
Financing Receivable, Revolving | 0 |
Financing Receivable, before Allowance for Credit Loss | 90,267 | 98,413
Residential Portfolio Segment [Member] | Conventional residential mortgage loans [Member] | Greater than 100 percent [Member] | Puerto Rico and Virgin Islands regions [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, Originated in Current Fiscal Year | 2,115 |
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year | 0 |
Financing Receivable, Originated Two Years before Latest Fiscal Year | 929 |
Financing Receivable, Originated Three Years before Latest Fiscal Year | 3,375 |
Financing Receivable, Originated Four Years before Latest Fiscal Year | 2,540 |
Financing Receivable, Originated Five or More Years before Latest Fiscal Year | 81,308 |
Financing Receivable, Revolving | 0 |
Financing Receivable, before Allowance for Credit Loss | 90,267 | 98,413
Residential Portfolio Segment [Member] | Conventional residential mortgage loans [Member] | Greater than 100 percent [Member] | Florida region [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, Originated in Current Fiscal Year | 0 |
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year | 0 |
Financing Receivable, Originated Two Years before Latest Fiscal Year | 0 |
Financing Receivable, Originated Three Years before Latest Fiscal Year | 0 |
Financing Receivable, Originated Four Years before Latest Fiscal Year | 0 |
Financing Receivable, Originated Five or More Years before Latest Fiscal Year | 0 |
Financing Receivable, Revolving | 0 |
Financing Receivable, before Allowance for Credit Loss | $ 0 | $ 0

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