SECURITIES (Reconciliation of fair value of Available for Sale securities) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale, Amortized Cost	$ 1,583,736	$ 395,453
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	8,808	17,869
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	(21,396)	(462)
Debt Securities, Available-for-sale, Allowance for Credit Loss	0	0
Debt Securities, Available-for-sale	1,571,148	412,860
US Government Agencies Debt Securities [Member]
Debt Securities, Available-for-sale, Amortized Cost	217,393	22,476
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	990	1,640
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	(2,901)	0
Debt Securities, Available-for-sale, Allowance for Credit Loss	0	0
Debt Securities, Available-for-sale	215,482	24,116
US Treasury Securities [Member]
Debt Securities, Available-for-sale, Amortized Cost	873,467	0
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	172
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	(12,191)	0
Debt Securities, Available-for-sale, Allowance for Credit Loss	0	0
Debt Securities, Available-for-sale	861,448	0
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Debt Securities, Available-for-sale, Amortized Cost	364,955	224,293
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	4,512	9,337
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	(5,534)	(1)
Debt Securities, Available-for-sale, Allowance for Credit Loss	0	0
Debt Securities, Available-for-sale	363,933	233,629
Agency collateralized mortgage obligations [Member]
Debt Securities, Available-for-sale, Amortized Cost	78,966	88,687
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	1,282	3,083
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	(571)	(87)
Debt Securities, Available-for-sale, Allowance for Credit Loss	0	0
Debt Securities, Available-for-sale	79,677	91,683
US States and Political Subdivisions Debt Securities [Member]
Debt Securities, Available-for-sale, Amortized Cost	192	790
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	11	17
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	0	0
Debt Securities, Available-for-sale, Allowance for Credit Loss	0	0
Debt Securities, Available-for-sale	203	807
Single issuer trust preferred securities issued by banks [Member]
Debt Securities, Available-for-sale, Amortized Cost	489	489
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	2
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	0	(1)
Debt Securities, Available-for-sale, Allowance for Credit Loss	0	0
Debt Securities, Available-for-sale	491	488
Pooled Trust Preferred Securities Issued By Banks And Insurers [Member]
Debt Securities, Available-for-sale, Amortized Cost	1,199	1,429
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	0	0
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	(199)	(373)
Debt Securities, Available-for-sale, Allowance for Credit Loss	0	0
Debt Securities, Available-for-sale	1,000	1,056
Small Business Administration Pooled Securities [Member]
Debt Securities, Available-for-sale, Amortized Cost	47,075	57,289
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	1,839	3,792
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	0	0
Debt Securities, Available-for-sale, Allowance for Credit Loss	0	0
Debt Securities, Available-for-sale	$ 48,914	$ 61,081

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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