INVESTMENT SECURITIES (Investment Securities at an Unrealized Loss Position) (Details) $ in Thousands	Mar. 31, 2026 USD ($) security	Dec. 31, 2025 USD ($) security
Investments, Debt and Equity Securities [Abstract]
Number of AFS investment securities in an unrealized loss position | security	189	179
Number of HTM investment securities in an unrealized loss position | security	81	81
Debt Securities, Available-for-Sale [Line Items]
Less than 12 months, Fair Value	$ 103,039	$ 43,885
Less Than 12 Months, Unrecognized Losses	(894)	(159)
12 Month or Longer, Fair Value	444,804	445,453
12 Month or Longer, Unrecognized Losses	(76,297)	(75,950)
Total Fair Value	547,843	489,338
Total Unrecognized Losses	77,191	76,109
Schedule of Held-to-Maturity Securities [Line Items]
Less Than 12 Months, Fair Value	0	0
Less Than 12 Months, Unrecognized Losses	0	0
12 Month or Longer, Fair Value	476,743	485,696
12 Month or Longer, Unrecognized Losses	(68,642)	(66,677)
Total Fair Value	476,743	485,696
Total Unrecognized Losses	(68,642)	(66,677)
States and political subdivisions
Debt Securities, Available-for-Sale [Line Items]
Less than 12 months, Fair Value	7,295	2,196
Less Than 12 Months, Unrecognized Losses	(72)	(12)
12 Month or Longer, Fair Value	102,313	105,922
12 Month or Longer, Unrecognized Losses	(24,852)	(24,165)
Total Fair Value	109,608	108,118
Total Unrecognized Losses	24,924	24,177
Schedule of Held-to-Maturity Securities [Line Items]
Less Than 12 Months, Fair Value	0	0
Less Than 12 Months, Unrecognized Losses	0	0
12 Month or Longer, Fair Value	34,267	34,699
12 Month or Longer, Unrecognized Losses	(7,613)	(7,226)
Total Fair Value	34,267	34,699
Total Unrecognized Losses	(7,613)	(7,226)
U.S. Treasury and other government-sponsored entities and agencies
Debt Securities, Available-for-Sale [Line Items]
Less than 12 months, Fair Value	17,272	20,687
Less Than 12 Months, Unrecognized Losses	(14)	(48)
12 Month or Longer, Fair Value	11,402	11,976
12 Month or Longer, Unrecognized Losses	(1,294)	(1,245)
Total Fair Value	28,674	32,663
Total Unrecognized Losses	1,308	1,293
Collateralized loan obligations
Debt Securities, Available-for-Sale [Line Items]
Less than 12 months, Fair Value	53,063	21,002
Less Than 12 Months, Unrecognized Losses	(462)	(99)
12 Month or Longer, Fair Value	21,175	10,020
12 Month or Longer, Unrecognized Losses	(124)	(66)
Total Fair Value	74,238	31,022
Total Unrecognized Losses	586	165
Residential - U.S. government-sponsored entities and agencies
Debt Securities, Available-for-Sale [Line Items]
Less than 12 months, Fair Value	20,864	0
Less Than 12 Months, Unrecognized Losses	(343)	0
12 Month or Longer, Fair Value	254,436	261,335
12 Month or Longer, Unrecognized Losses	(37,913)	(38,200)
Total Fair Value	275,300	261,335
Total Unrecognized Losses	38,256	38,200
Schedule of Held-to-Maturity Securities [Line Items]
Less Than 12 Months, Fair Value	0	0
Less Than 12 Months, Unrecognized Losses	0	0
12 Month or Longer, Fair Value	442,476	450,997
12 Month or Longer, Unrecognized Losses	(61,029)	(59,451)
Total Fair Value	442,476	450,997
Total Unrecognized Losses	(61,029)	(59,451)
Residential - Non-government agencies
Debt Securities, Available-for-Sale [Line Items]
Less than 12 months, Fair Value	4,545	0
Less Than 12 Months, Unrecognized Losses	(3)	0
12 Month or Longer, Fair Value	6,783	6,954
12 Month or Longer, Unrecognized Losses	(697)	(722)
Total Fair Value	11,328	6,954
Total Unrecognized Losses	700	722
Commercial - U.S. government-sponsored entities and agencies
Debt Securities, Available-for-Sale [Line Items]
Less than 12 months, Fair Value	0	0
Less Than 12 Months, Unrecognized Losses	0	0
12 Month or Longer, Fair Value	48,695	49,246
12 Month or Longer, Unrecognized Losses	(11,417)	(11,552)
Total Fair Value	48,695	49,246
Total Unrecognized Losses	$ 11,417	$ 11,552