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LOANS HELD FOR INVESTMENT - Financial Effects of the Permanent Modifications Granted to Borrowers Experiencing Financial Difficulty (Detail) - Permanent Modification [Member] | 3 Months Ended
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Mar. 31, 2024 | Mar. 31, 2023
Residential Portfolio Segment [Member] | Conventional Loan [Member] |  |
Financing Receivable Modifications [Line Items] |  |
Weighted-Average Interest Rate Reduction (%) | 0.00% | 0.00%
Weighted-Average Term Extension (in months) |  | 98 months
Commercial Portfolio Segment [Member] | Commercial And Industrial Sector [Member] |  |
Financing Receivable Modifications [Line Items] |  |
Weighted-Average Interest Rate Reduction (%) | 13.00% | 0.00%
Commercial Portfolio Segment [Member] | Mortgage Receivable [Member] |  |
Financing Receivable Modifications [Line Items] |  |
Weighted-Average Interest Rate Reduction (%) | 0.00% | 0.00%
Construction Loans [Member] | Commercial Portfolio Segment [Member] |  |
Financing Receivable Modifications [Line Items] |  |
Weighted-Average Interest Rate Reduction (%) | 0.00% | 0.00%
Automobile Loan [Member] | Consumer Portfolio Segment [Member] |  |
Financing Receivable Modifications [Line Items] |  |
Weighted-Average Interest Rate Reduction (%) | 0.00% | 0.00%
Weighted-Average Term Extension (in months) | 30 months | 22 months
Personal Loans [Member] | Consumer Portfolio Segment [Member] |  |
Financing Receivable Modifications [Line Items] |  |
Weighted-Average Interest Rate Reduction (%) | 8.49% | 0.00%
Weighted-Average Term Extension (in months) | 25 months | 30 months
Credit Card Receivables [Member] | Consumer Portfolio Segment [Member] |  |
Financing Receivable Modifications [Line Items] |  |
Weighted-Average Interest Rate Reduction (%) | 16.55% | 16.04%
Other Loans [Member] | Consumer Portfolio Segment [Member] |  |
Financing Receivable Modifications [Line Items] |  |
Weighted-Average Interest Rate Reduction (%) | 0.00% | 0.00%
Weighted-Average Term Extension (in months) | 23 months | 27 months
Combination Of Interest Rate Below Market Reduction And Extended Maturity [Member] | Residential Portfolio Segment [Member] | Conventional Loan [Member] |  |
Financing Receivable Modifications [Line Items] |  |
Weighted-Average Interest Rate Reduction (%) | 0.00% | 2.11%
Weighted-Average Term Extension (in months) |  | 141 months
Combination Of Interest Rate Below Market Reduction And Extended Maturity [Member] | Commercial Portfolio Segment [Member] | Commercial And Industrial Sector [Member] |  |
Financing Receivable Modifications [Line Items] |  |
Weighted-Average Interest Rate Reduction (%) | 0.00% | 0.00%
Combination Of Interest Rate Below Market Reduction And Extended Maturity [Member] | Commercial Portfolio Segment [Member] | Mortgage Receivable [Member] |  |
Financing Receivable Modifications [Line Items] |  |
Weighted-Average Interest Rate Reduction (%) | 0.00% | 0.00%
Combination Of Interest Rate Below Market Reduction And Extended Maturity [Member] | Construction Loans [Member] | Commercial Portfolio Segment [Member] |  |
Financing Receivable Modifications [Line Items] |  |
Weighted-Average Interest Rate Reduction (%) | 0.00% | 0.00%
Combination Of Interest Rate Below Market Reduction And Extended Maturity [Member] | Automobile Loan [Member] | Consumer Portfolio Segment [Member] |  |
Financing Receivable Modifications [Line Items] |  |
Weighted-Average Interest Rate Reduction (%) | 2.68% | 2.88%
Weighted-Average Term Extension (in months) | 25 months | 28 months
Combination Of Interest Rate Below Market Reduction And Extended Maturity [Member] | Personal Loans [Member] | Consumer Portfolio Segment [Member] |  |
Financing Receivable Modifications [Line Items] |  |
Weighted-Average Interest Rate Reduction (%) | 1.79% | 3.36%
Weighted-Average Term Extension (in months) | 14 months | 12 months
Combination Of Interest Rate Below Market Reduction And Extended Maturity [Member] | Credit Card Receivables [Member] | Consumer Portfolio Segment [Member] |  |
Financing Receivable Modifications [Line Items] |  |
Weighted-Average Interest Rate Reduction (%) | 0.00% | 0.00%
Combination Of Interest Rate Below Market Reduction And Extended Maturity [Member] | Other Loans [Member] | Consumer Portfolio Segment [Member] |  |
Financing Receivable Modifications [Line Items] |  |
Weighted-Average Interest Rate Reduction (%) | 2.81% | 1.96%
Weighted-Average Term Extension (in months) | 19 months | 26 months

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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. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 42 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-42 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 42 -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-42 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 12A -Publisher FASB -URI https://asc.fasb.org//1943274/2147481933/310-10-55-12A Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 33 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-33 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 34 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-34 + Details
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