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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
	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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Amount of gain (loss) recognized in other comprehensive income (OCI) from asset measured at fair value on recurring basis using unobservable input (level 3).

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Amount of settlement of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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