SECURITIES, Amortized Cost and Fair Value of Securities with Gross Unrealized Gains and Losses (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Available for sale [Abstract]
Amortized cost	$ 826,672	$ 712,895
Gross unrealized gains	1,803	16,440
Gross unrealized losses	(35,071)	(4,831)
Fair value	793,404	724,504
U.S. Government and Agencies [Member]
Available for sale [Abstract]
Amortized cost	0	0
Gross unrealized gains	0	0
Gross unrealized losses	0	0
Fair value	0	0
State and Municipal [Member]
Available for sale [Abstract]
Amortized cost	263,318	265,143
Gross unrealized gains	223	10,615
Gross unrealized losses	(10,533)	(86)
Fair value	253,008	275,672
Mortgage-backed Securities [Member]
Available for sale [Abstract]
Amortized cost	422,603	302,973
Gross unrealized gains	106	4,230
Gross unrealized losses	(24,276)	(4,114)
Fair value	398,433	303,089
Collateralized Mortgage Obligations [Member]
Available for sale [Abstract]
Amortized cost	103,976	106,733
Gross unrealized gains	1,043	0
Gross unrealized losses	0	(413)
Fair value	105,019	106,320
Asset-backed and Other Amortizing Securities [Member]
Available for sale [Abstract]
Amortized cost	24,775	26,046
Gross unrealized gains	3	1,108
Gross unrealized losses	(243)	(218)
Fair value	24,535	26,936
Other Securities [Member]
Available for sale [Abstract]
Amortized cost	12,000	12,000
Gross unrealized gains	428	487
Gross unrealized losses	(19)	0
Fair value	$ 12,409	$ 12,487

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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