SECURITIES AND OTHER INVESTMENTS (Amortized Cost of HTM Securities by Security Type and Credit Rating) (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Schedule of Held-to-Maturity Securities [Line Items]
HTM Securities, Amortized Cost	$ 884,216	$ 803,851
Moody's AAA/AA/A
Schedule of Held-to-Maturity Securities [Line Items]
HTM Securities, Amortized Cost	784,155	692,671
Moody's BBB/BB/B
Schedule of Held-to-Maturity Securities [Line Items]
HTM Securities, Amortized Cost	1,122	1,144
Moody's Not Rated - Agency
Schedule of Held-to-Maturity Securities [Line Items]
HTM Securities, Amortized Cost	64,867	64,595
Moody's Not Rated - Non-Agency
Schedule of Held-to-Maturity Securities [Line Items]
HTM Securities, Amortized Cost	34,072	45,441
US States and Political Subdivisions Debt Securities [Member]
Schedule of Held-to-Maturity Securities [Line Items]
HTM Securities, Amortized Cost	793,162	697,683
US States and Political Subdivisions Debt Securities [Member] | Moody's AAA/AA/A
Schedule of Held-to-Maturity Securities [Line Items]
HTM Securities, Amortized Cost	782,453	686,923
US States and Political Subdivisions Debt Securities [Member] | Moody's BBB/BB/B
Schedule of Held-to-Maturity Securities [Line Items]
HTM Securities, Amortized Cost	1,122	1,144
US States and Political Subdivisions Debt Securities [Member] | Moody's Not Rated - Agency
Schedule of Held-to-Maturity Securities [Line Items]
HTM Securities, Amortized Cost	0	0
US States and Political Subdivisions Debt Securities [Member] | Moody's Not Rated - Non-Agency
Schedule of Held-to-Maturity Securities [Line Items]
HTM Securities, Amortized Cost	9,587	9,616
Corporate Bond Securities [Member]
Schedule of Held-to-Maturity Securities [Line Items]
HTM Securities, Amortized Cost	2,255	3,322
Corporate Bond Securities [Member] | Moody's AAA/AA/A
Schedule of Held-to-Maturity Securities [Line Items]
HTM Securities, Amortized Cost	0	0
Corporate Bond Securities [Member] | Moody's BBB/BB/B
Schedule of Held-to-Maturity Securities [Line Items]
HTM Securities, Amortized Cost	0	0
Corporate Bond Securities [Member] | Moody's Not Rated - Agency
Schedule of Held-to-Maturity Securities [Line Items]
HTM Securities, Amortized Cost	0	0
Corporate Bond Securities [Member] | Moody's Not Rated - Non-Agency
Schedule of Held-to-Maturity Securities [Line Items]
HTM Securities, Amortized Cost	2,255	3,322
Collateralized Mortgage-Backed Securities [Member]
Schedule of Held-to-Maturity Securities [Line Items]
HTM Securities, Amortized Cost	88,799	102,846
Collateralized Mortgage-Backed Securities [Member] | Moody's AAA/AA/A
Schedule of Held-to-Maturity Securities [Line Items]
HTM Securities, Amortized Cost	1,702	5,748
Collateralized Mortgage-Backed Securities [Member] | Moody's BBB/BB/B
Schedule of Held-to-Maturity Securities [Line Items]
HTM Securities, Amortized Cost	0	0
Collateralized Mortgage-Backed Securities [Member] | Moody's Not Rated - Agency
Schedule of Held-to-Maturity Securities [Line Items]
HTM Securities, Amortized Cost	64,867	64,595
Collateralized Mortgage-Backed Securities [Member] | Moody's Not Rated - Non-Agency
Schedule of Held-to-Maturity Securities [Line Items]
HTM Securities, Amortized Cost	$ 22,230	$ 32,503