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FAIR VALUE OF FINANCIAL ASSETS AND FINANCIAL LIABILITIES (Level 3 Assets and Liabilities) (Details) - Mortgage revenue bonds - USD ($) $ in Thousands | 9 Months Ended
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Sep. 30, 2025 | Sep. 30, 2024
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis |  |
Aggregate fair value / Balance at the beginning of the period | $ 6,847 | $ 13,590
Principal payments received | (196) | (181)
Unrealized net gain (loss) included in other comprehensive income | 162 | (1,151)
Aggregate fair value / Balance at the end of the period | 6,813 | 12,258
States and political subdivisions |  |
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis |  |
Aggregate fair value / Balance at the beginning of the period | 6,165 | 6,436
Principal payments received | (178) | (163)
Unrealized net gain (loss) included in other comprehensive income | 149 | 65
Aggregate fair value / Balance at the end of the period | 6,136 | 6,338
Residential - Non-government agencies |  |
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis |  |
Aggregate fair value / Balance at the beginning of the period | 682 | 714
Principal payments received | (18) | (18)
Unrealized net gain (loss) included in other comprehensive income | 13 | 22
Aggregate fair value / Balance at the end of the period | 677 | 718
Interest rate swap agreements |  |
Changes in Level 3 assets and liabilities measured at fair value on a recurring basis |  |
Aggregate fair value / Balance at the beginning of the period | 0 | 6,440
Principal payments received | 0 | 0
Unrealized net gain (loss) included in other comprehensive income | 0 | (1,238)
Aggregate fair value / Balance at the end of the period | $ 0 | $ 5,202

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- Definition Amount of gain (loss) recognized in other comprehensive income (OCI) from asset measured at fair value on recurring basis using unobservable input (level 3). + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 101 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-101 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-3 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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