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LOANS HELD FOR INVESTMENT - Corporation's Residential Mortgage Loans By Origination Year Based on Accrual Status (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022
Financing Receivable, Recorded Investment [Line Items] |  |  |  |  |
Loans held for investment | $ 11,950,932 |  | $ 11,950,932 |  | $ 11,552,825
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff | 20,259 | $ 14,062 | 62,260 | $ 39,369 |
Puerto Rico and Virgin Islands regions [Member] |  |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |  |
Loans held for investment | 9,906,289 |  | 9,906,289 |  | 9,464,474
Florida region [Member} |  |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |  |
Loans held for investment | 2,044,643 |  | 2,044,643 |  | 2,088,351
Residential Portfolio Segment [Member] |  |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 186,554 |  | 186,554 |  |
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 248,015 |  | 248,015 |  |
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 119,284 |  | 119,284 |  |
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 60,616 |  | 60,616 |  |
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 73,921 |  | 73,921 |  |
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 2,124,241 |  | 2,124,241 |  |
Financing Receivable, Excluding Accrued Interest, Revolving | 0 |  | 0 |  |
Loans held for investment | 2,812,631 |  | 2,812,631 |  | 2,847,290
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff |  |  | 0 |  |
Financing Receivable, Year Two, Originated, Fiscal Year Before Current Fiscal Year, Writeoff |  |  | 0 |  |
Financing Receivable, Year Three, Originated, Two Years Before Current Fiscal Year, Writeoff |  |  | 0 |  |
Financing Receivable, Year Four, Originated, Three Years Before Current Fiscal Year, Writeoff |  |  | 3 |  |
Financing Receivable, Year Five, Originated, Four Years Before Current Fiscal Year, Writeoff |  |  | 0 |  |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff |  |  | 2,625 |  |
Financing Receivable, Revolving, Writeoff |  |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff | 499 | $ 1,466 | 2,628 | $ 6,073 |
Residential Portfolio Segment [Member] | Performing Financial Instruments [Member] |  |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 186,554 |  | 186,554 |  |
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 247,999 |  | 247,999 |  |
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 119,249 |  | 119,249 |  |
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 60,616 |  | 60,616 |  |
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 73,490 |  | 73,490 |  |
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 2,092,777 |  | 2,092,777 |  |
Financing Receivable, Excluding Accrued Interest, Revolving | 0 |  | 0 |  |
Loans held for investment | 2,780,685 |  | 2,780,685 |  | 2,804,518
Residential Portfolio Segment [Member] | Nonperforming Financial Instruments [Member] |  |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 16 |  | 16 |  |
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 35 |  | 35 |  |
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 431 |  | 431 |  |
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 31,464 |  | 31,464 |  |
Financing Receivable, Excluding Accrued Interest, Revolving | 0 |  | 0 |  |
Loans held for investment | 31,946 |  | 31,946 |  | 42,772
Residential Portfolio Segment [Member] | Puerto Rico and Virgin Islands regions [Member] |  |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 115,011 |  | 115,011 |  |
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 169,193 |  | 169,193 |  |
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 71,393 |  | 71,393 |  |
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 30,748 |  | 30,748 |  |
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 46,277 |  | 46,277 |  |
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 1,921,057 |  | 1,921,057 |  |
Financing Receivable, Excluding Accrued Interest, Revolving | 0 |  | 0 |  |
Loans held for investment | 2,353,679 |  | 2,353,679 |  | 2,417,900
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff |  |  | 0 |  |
Financing Receivable, Year Two, Originated, Fiscal Year Before Current Fiscal Year, Writeoff |  |  | 0 |  |
Financing Receivable, Year Three, Originated, Two Years Before Current Fiscal Year, Writeoff |  |  | 0 |  |
Financing Receivable, Year Four, Originated, Three Years Before Current Fiscal Year, Writeoff |  |  | 3 |  |
Financing Receivable, Year Five, Originated, Four Years Before Current Fiscal Year, Writeoff |  |  | 0 |  |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff |  |  | 2,619 |  |
Financing Receivable, Revolving, Writeoff |  |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff |  |  | 2,622 |  |
Residential Portfolio Segment [Member] | Puerto Rico and Virgin Islands regions [Member] | Performing Financial Instruments [Member] |  |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 115,011 |  | 115,011 |  |
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 169,193 |  | 169,193 |  |
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 71,358 |  | 71,358 |  |
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 30,748 |  | 30,748 |  |
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 46,103 |  | 46,103 |  |
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 1,896,017 |  | 1,896,017 |  |
Financing Receivable, Excluding Accrued Interest, Revolving | 0 |  | 0 |  |
Loans held for investment | 2,328,430 |  | 2,328,430 |  | 2,382,429
Residential Portfolio Segment [Member] | Puerto Rico and Virgin Islands regions [Member] | Nonperforming Financial Instruments [Member] |  |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 35 |  | 35 |  |
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 174 |  | 174 |  |
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 25,040 |  | 25,040 |  |
Financing Receivable, Excluding Accrued Interest, Revolving | 0 |  | 0 |  |
Loans held for investment | 25,249 |  | 25,249 |  | 35,471
Residential Portfolio Segment [Member] | Florida region [Member} |  |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 71,543 |  | 71,543 |  |
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 78,822 |  | 78,822 |  |
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 47,891 |  | 47,891 |  |
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 29,868 |  | 29,868 |  |
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 27,644 |  | 27,644 |  |
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 203,184 |  | 203,184 |  |
Financing Receivable, Excluding Accrued Interest, Revolving | 0 |  | 0 |  |
Loans held for investment | 458,952 |  | 458,952 |  | 429,390
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff |  |  | 0 |  |
Financing Receivable, Year Two, Originated, Fiscal Year Before Current Fiscal Year, Writeoff |  |  | 0 |  |
Financing Receivable, Year Three, Originated, Two Years Before Current Fiscal Year, Writeoff |  |  | 0 |  |
Financing Receivable, Year Four, Originated, Three Years Before Current Fiscal Year, Writeoff |  |  | 0 |  |
Financing Receivable, Year Five, Originated, Four Years Before Current Fiscal Year, Writeoff |  |  | 0 |  |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff |  |  | 6 |  |
Financing Receivable, Revolving, Writeoff |  |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff |  |  | 6 |  |
Residential Portfolio Segment [Member] | Florida region [Member} | Performing Financial Instruments [Member] |  |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 71,543 |  | 71,543 |  |
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 78,806 |  | 78,806 |  |
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 47,891 |  | 47,891 |  |
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 29,868 |  | 29,868 |  |
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 27,387 |  | 27,387 |  |
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 196,760 |  | 196,760 |  |
Financing Receivable, Excluding Accrued Interest, Revolving | 0 |  | 0 |  |
Loans held for investment | 452,255 |  | 452,255 |  | 422,089
Residential Portfolio Segment [Member] | Florida region [Member} | Nonperforming Financial Instruments [Member] |  |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 16 |  | 16 |  |
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 257 |  | 257 |  |
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 6,424 |  | 6,424 |  |
Financing Receivable, Excluding Accrued Interest, Revolving | 0 |  | 0 |  |
Loans held for investment | 6,697 |  | 6,697 |  | 7,301
Residential Portfolio Segment [Member] | FHA/VA government-guaranteed loans [Member] |  |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 220 |  | 220 |  |
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 686 |  | 686 |  |
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 1,455 |  | 1,455 |  |
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 660 |  | 660 |  |
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 1,104 |  | 1,104 |  |
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 99,971 |  | 99,971 |  |
Financing Receivable, Excluding Accrued Interest, Revolving | 0 |  | 0 |  |
Loans held for investment | 104,096 |  | 104,096 |  | 118,158
Residential Portfolio Segment [Member] | FHA/VA government-guaranteed loans [Member] | Performing Financial Instruments [Member] |  |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 220 |  | 220 |  |
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 686 |  | 686 |  |
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 1,455 |  | 1,455 |  |
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 660 |  | 660 |  |
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 1,104 |  | 1,104 |  |
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 99,971 |  | 99,971 |  |
Financing Receivable, Excluding Accrued Interest, Revolving | 0 |  | 0 |  |
Loans held for investment | 104,096 |  | 104,096 |  | 118,158
Residential Portfolio Segment [Member] | FHA/VA government-guaranteed loans [Member] | Nonperforming Financial Instruments [Member] |  |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Revolving | 0 |  | 0 |  |
Loans held for investment | 0 |  | 0 |  | 0
Residential Portfolio Segment [Member] | FHA/VA government-guaranteed loans [Member] | Puerto Rico and Virgin Islands regions [Member] |  |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 220 |  | 220 |  |
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 686 |  | 686 |  |
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 1,455 |  | 1,455 |  |
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 660 |  | 660 |  |
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 1,104 |  | 1,104 |  |
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 99,007 |  | 99,007 |  |
Financing Receivable, Excluding Accrued Interest, Revolving | 0 |  | 0 |  |
Loans held for investment | 103,132 |  | 103,132 |  | 117,416
Residential Portfolio Segment [Member] | FHA/VA government-guaranteed loans [Member] | Puerto Rico and Virgin Islands regions [Member] | Performing Financial Instruments [Member] |  |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 220 |  | 220 |  |
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 686 |  | 686 |  |
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 1,455 |  | 1,455 |  |
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 660 |  | 660 |  |
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 1,104 |  | 1,104 |  |
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 99,007 |  | 99,007 |  |
Financing Receivable, Excluding Accrued Interest, Revolving | 0 |  | 0 |  |
Loans held for investment | 103,132 |  | 103,132 |  | 117,416
Residential Portfolio Segment [Member] | FHA/VA government-guaranteed loans [Member] | Puerto Rico and Virgin Islands regions [Member] | Nonperforming Financial Instruments [Member] |  |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Revolving | 0 |  | 0 |  |
Loans held for investment | 0 |  | 0 |  | 0
Residential Portfolio Segment [Member] | FHA/VA government-guaranteed loans [Member] | Florida region [Member} |  |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 964 |  | 964 |  |
Financing Receivable, Excluding Accrued Interest, Revolving | 0 |  | 0 |  |
Loans held for investment | 964 |  | 964 |  | 742
Residential Portfolio Segment [Member] | FHA/VA government-guaranteed loans [Member] | Florida region [Member} | Performing Financial Instruments [Member] |  |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 964 |  | 964 |  |
Financing Receivable, Excluding Accrued Interest, Revolving | 0 |  | 0 |  |
Loans held for investment | 964 |  | 964 |  | 742
Residential Portfolio Segment [Member] | FHA/VA government-guaranteed loans [Member] | Florida region [Member} | Nonperforming Financial Instruments [Member] |  |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Revolving | 0 |  | 0 |  |
Loans held for investment | 0 |  | 0 |  | 0
Residential Portfolio Segment [Member] | Conventional residential mortgage loans [Member] |  |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 186,334 |  | 186,334 |  |
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 247,329 |  | 247,329 |  |
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 117,829 |  | 117,829 |  |
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 59,956 |  | 59,956 |  |
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 72,817 |  | 72,817 |  |
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 2,024,270 |  | 2,024,270 |  |
Financing Receivable, Excluding Accrued Interest, Revolving | 0 |  | 0 |  |
Loans held for investment | 2,708,535 |  | 2,708,535 |  | 2,729,132
Residential Portfolio Segment [Member] | Conventional residential mortgage loans [Member] | Performing Financial Instruments [Member] |  |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 186,334 |  | 186,334 |  |
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 247,313 |  | 247,313 |  |
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 117,794 |  | 117,794 |  |
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 59,956 |  | 59,956 |  |
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 72,386 |  | 72,386 |  |
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 1,992,806 |  | 1,992,806 |  |
Financing Receivable, Excluding Accrued Interest, Revolving | 0 |  | 0 |  |
Loans held for investment | 2,676,589 |  | 2,676,589 |  | 2,686,360
Residential Portfolio Segment [Member] | Conventional residential mortgage loans [Member] | Nonperforming Financial Instruments [Member] |  |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 16 |  | 16 |  |
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 35 |  | 35 |  |
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 431 |  | 431 |  |
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 31,464 |  | 31,464 |  |
Financing Receivable, Excluding Accrued Interest, Revolving | 0 |  | 0 |  |
Loans held for investment | 31,946 |  | 31,946 |  | 42,772
Residential Portfolio Segment [Member] | Conventional residential mortgage loans [Member] | Puerto Rico and Virgin Islands regions [Member] |  |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 114,791 |  | 114,791 |  |
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 168,507 |  | 168,507 |  |
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 69,938 |  | 69,938 |  |
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 30,088 |  | 30,088 |  |
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 45,173 |  | 45,173 |  |
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 1,822,050 |  | 1,822,050 |  |
Financing Receivable, Excluding Accrued Interest, Revolving | 0 |  | 0 |  |
Loans held for investment | 2,250,547 |  | 2,250,547 |  | 2,300,484
Residential Portfolio Segment [Member] | Conventional residential mortgage loans [Member] | Puerto Rico and Virgin Islands regions [Member] | Performing Financial Instruments [Member] |  |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 114,791 |  | 114,791 |  |
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 168,507 |  | 168,507 |  |
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 69,903 |  | 69,903 |  |
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 30,088 |  | 30,088 |  |
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 44,999 |  | 44,999 |  |
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 1,797,010 |  | 1,797,010 |  |
Financing Receivable, Excluding Accrued Interest, Revolving | 0 |  | 0 |  |
Loans held for investment | 2,225,298 |  | 2,225,298 |  | 2,265,013
Residential Portfolio Segment [Member] | Conventional residential mortgage loans [Member] | Puerto Rico and Virgin Islands regions [Member] | Nonperforming Financial Instruments [Member] |  |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 35 |  | 35 |  |
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 174 |  | 174 |  |
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 25,040 |  | 25,040 |  |
Financing Receivable, Excluding Accrued Interest, Revolving | 0 |  | 0 |  |
Loans held for investment | 25,249 |  | 25,249 |  | 35,471
Residential Portfolio Segment [Member] | Conventional residential mortgage loans [Member] | Florida region [Member} |  |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 71,543 |  | 71,543 |  |
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 78,822 |  | 78,822 |  |
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 47,891 |  | 47,891 |  |
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 29,868 |  | 29,868 |  |
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 27,644 |  | 27,644 |  |
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 202,220 |  | 202,220 |  |
Financing Receivable, Excluding Accrued Interest, Revolving | 0 |  | 0 |  |
Loans held for investment | 457,988 |  | 457,988 |  | 428,648
Residential Portfolio Segment [Member] | Conventional residential mortgage loans [Member] | Florida region [Member} | Performing Financial Instruments [Member] |  |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 71,543 |  | 71,543 |  |
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 78,806 |  | 78,806 |  |
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 47,891 |  | 47,891 |  |
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 29,868 |  | 29,868 |  |
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 27,387 |  | 27,387 |  |
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 195,796 |  | 195,796 |  |
Financing Receivable, Excluding Accrued Interest, Revolving | 0 |  | 0 |  |
Loans held for investment | 451,291 |  | 451,291 |  | 421,347
Residential Portfolio Segment [Member] | Conventional residential mortgage loans [Member] | Florida region [Member} | Nonperforming Financial Instruments [Member] |  |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year | 16 |  | 16 |  |
Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year | 0 |  | 0 |  |
Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year | 257 |  | 257 |  |
Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year | 6,424 |  | 6,424 |  |
Financing Receivable, Excluding Accrued Interest, Revolving | 0 |  | 0 |  |
Loans held for investment | $ 6,697 |  | $ 6,697 |  | $ 7,301

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