ALLOWANCE FOR CREDIT LOSSES AND CREDIT QUALITY - Aging Of The Recorded Investment In Past Due Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	$ 4,287,841
Total Past Due and Nonaccrual	14,973	$ 13,369
Total	7,711	4,649,156
Loans Not Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	4,286,997	4,635,787
30-89 Days Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	727	1,267
Greater than 89 Days Past Due and Accruing
Financing Receivable, Allowance for Credit Loss [Line Items]
Greater than 90 Days Past Due and Still Accruing	117	116
Total Accruing
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	4,272,868	11,986
Working capital lines of credit loans | Commercial and Industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	652,927
Total Past Due and Nonaccrual	5,966	606
Total	5,200	626,099
Working capital lines of credit loans | Commercial and Industrial | Loans Not Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	652,903	625,493
Working capital lines of credit loans | Commercial and Industrial | 30-89 Days Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	24	0
Working capital lines of credit loans | Commercial and Industrial | Greater than 89 Days Past Due and Accruing
Financing Receivable, Allowance for Credit Loss [Line Items]
Greater than 90 Days Past Due and Still Accruing	0	0
Working capital lines of credit loans | Commercial and Industrial | Total Accruing
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	646,961	606
Non-working capital loans | Commercial and Industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	735,659
Total Past Due and Nonaccrual	4,596	5,287
Total	229	1,158,827
Non-working capital loans | Commercial and Industrial | Loans Not Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	735,658	1,153,540
Non-working capital loans | Commercial and Industrial | 30-89 Days Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	1	0
Non-working capital loans | Commercial and Industrial | Greater than 89 Days Past Due and Accruing
Financing Receivable, Allowance for Credit Loss [Line Items]
Greater than 90 Days Past Due and Still Accruing	0	0
Non-working capital loans | Commercial and Industrial | Total Accruing
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	731,063	5,287
Construction and land development loans | Commercial Real Estate and Multi-family Residential
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	378,030
Total Past Due and Nonaccrual	0	0
Total	0	361,664
Construction and land development loans | Commercial Real Estate and Multi-family Residential | Loans Not Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	378,030	361,664
Construction and land development loans | Commercial Real Estate and Multi-family Residential | 30-89 Days Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	0	0
Construction and land development loans | Commercial Real Estate and Multi-family Residential | Greater than 89 Days Past Due and Accruing
Financing Receivable, Allowance for Credit Loss [Line Items]
Greater than 90 Days Past Due and Still Accruing	0	0
Construction and land development loans | Commercial Real Estate and Multi-family Residential | Total Accruing
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	378,030	0
Owner occupied loans | Commercial Real Estate and Multi-family Residential
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	738,791
Total Past Due and Nonaccrual	3,634	5,047
Total	2,129	647,574
Owner occupied loans | Commercial Real Estate and Multi-family Residential | Loans Not Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	738,791	642,527
Owner occupied loans | Commercial Real Estate and Multi-family Residential | 30-89 Days Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	0	0
Owner occupied loans | Commercial Real Estate and Multi-family Residential | Greater than 89 Days Past Due and Accruing
Financing Receivable, Allowance for Credit Loss [Line Items]
Greater than 90 Days Past Due and Still Accruing	0	0
Owner occupied loans | Commercial Real Estate and Multi-family Residential | Total Accruing
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	735,157	5,047
Nonowner occupied loans | Commercial Real Estate and Multi-family Residential
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	588,039
Total Past Due and Nonaccrual	0	0
Total	0	579,050
Nonowner occupied loans | Commercial Real Estate and Multi-family Residential | Loans Not Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	588,039	579,050
Nonowner occupied loans | Commercial Real Estate and Multi-family Residential | 30-89 Days Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	0	0
Nonowner occupied loans | Commercial Real Estate and Multi-family Residential | Greater than 89 Days Past Due and Accruing
Financing Receivable, Allowance for Credit Loss [Line Items]
Greater than 90 Days Past Due and Still Accruing	0	0
Nonowner occupied loans | Commercial Real Estate and Multi-family Residential | Total Accruing
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	588,039	0
Multi-family loans | Commercial Real Estate and Multi-family Residential
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	246,787
Total Past Due and Nonaccrual	0	0
Total	0	304,284
Multi-family loans | Commercial Real Estate and Multi-family Residential | Loans Not Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	246,787	304,284
Multi-family loans | Commercial Real Estate and Multi-family Residential | 30-89 Days Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	0	0
Multi-family loans | Commercial Real Estate and Multi-family Residential | Greater than 89 Days Past Due and Accruing
Financing Receivable, Allowance for Credit Loss [Line Items]
Greater than 90 Days Past Due and Still Accruing	0	0
Multi-family loans | Commercial Real Estate and Multi-family Residential | Total Accruing
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	246,787	0
Loans secured by farmland | Agri-business and Agricultural
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	206,302
Total Past Due and Nonaccrual	335	428
Total	0	195,363
Loans secured by farmland | Agri-business and Agricultural | Loans Not Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	206,302	194,935
Loans secured by farmland | Agri-business and Agricultural | 30-89 Days Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	0	0
Loans secured by farmland | Agri-business and Agricultural | Greater than 89 Days Past Due and Accruing
Financing Receivable, Allowance for Credit Loss [Line Items]
Greater than 90 Days Past Due and Still Accruing	0	0
Loans secured by farmland | Agri-business and Agricultural | Total Accruing
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	205,967	428
Loans for agricultural production | Agri-business and Agricultural
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	239,573
Total Past Due and Nonaccrual	0	108
Total	0	234,299
Loans for agricultural production | Agri-business and Agricultural | Loans Not Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	239,573	234,191
Loans for agricultural production | Agri-business and Agricultural | 30-89 Days Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	0	108
Loans for agricultural production | Agri-business and Agricultural | Greater than 89 Days Past Due and Accruing
Financing Receivable, Allowance for Credit Loss [Line Items]
Greater than 90 Days Past Due and Still Accruing	0	0
Loans for agricultural production | Agri-business and Agricultural | Total Accruing
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	239,573	0
Other commercial loans | Agri-business and Agricultural
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	73,178
Total Past Due and Nonaccrual	0	0
Total	0	93,912
Other commercial loans | Agri-business and Agricultural | Loans Not Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	73,178	93,912
Other commercial loans | Agri-business and Agricultural | 30-89 Days Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	0	0
Other commercial loans | Agri-business and Agricultural | Greater than 89 Days Past Due and Accruing
Financing Receivable, Allowance for Credit Loss [Line Items]
Greater than 90 Days Past Due and Still Accruing	0	0
Other commercial loans | Agri-business and Agricultural | Total Accruing
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	73,178	0
Closed end first mortgage loans | Consumer 1-4 Family Mortgage
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	176,295
Total Past Due and Nonaccrual	55	1,606
Total	55	167,501
Closed end first mortgage loans | Consumer 1-4 Family Mortgage | Loans Not Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	175,678	165,895
Closed end first mortgage loans | Consumer 1-4 Family Mortgage | 30-89 Days Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	500	877
Closed end first mortgage loans | Consumer 1-4 Family Mortgage | Greater than 89 Days Past Due and Accruing
Financing Receivable, Allowance for Credit Loss [Line Items]
Greater than 90 Days Past Due and Still Accruing	117	116
Closed end first mortgage loans | Consumer 1-4 Family Mortgage | Total Accruing
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	176,240	613
Open end and junior lien loans | Consumer 1-4 Family Mortgage
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	157,859
Total Past Due and Nonaccrual	98	142
Total	98	165,236
Open end and junior lien loans | Consumer 1-4 Family Mortgage | Loans Not Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	157,729	165,094
Open end and junior lien loans | Consumer 1-4 Family Mortgage | 30-89 Days Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	130	137
Open end and junior lien loans | Consumer 1-4 Family Mortgage | Greater than 89 Days Past Due and Accruing
Financing Receivable, Allowance for Credit Loss [Line Items]
Greater than 90 Days Past Due and Still Accruing	0	0
Open end and junior lien loans | Consumer 1-4 Family Mortgage | Total Accruing
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	157,761	5
Residential construction loans | Consumer 1-4 Family Mortgage
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	11,857
Total Past Due and Nonaccrual	0	0
Total	0	11,962
Residential construction loans | Consumer 1-4 Family Mortgage | Loans Not Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	11,857	11,962
Residential construction loans | Consumer 1-4 Family Mortgage | 30-89 Days Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	0	0
Residential construction loans | Consumer 1-4 Family Mortgage | Greater than 89 Days Past Due and Accruing
Financing Receivable, Allowance for Credit Loss [Line Items]
Greater than 90 Days Past Due and Still Accruing	0	0
Residential construction loans | Consumer 1-4 Family Mortgage | Total Accruing
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	$ 11,857	0
Total consumer loans | Consumer 1-4 Family Mortgage
Financing Receivable, Allowance for Credit Loss [Line Items]
Total Past Due and Nonaccrual		145
Total		103,385
Total consumer loans | Consumer 1-4 Family Mortgage | Loans Not Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans		103,240
Total consumer loans | Consumer 1-4 Family Mortgage | 30-89 Days Past Due
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans		145
Total consumer loans | Consumer 1-4 Family Mortgage | Greater than 89 Days Past Due and Accruing
Financing Receivable, Allowance for Credit Loss [Line Items]
Greater than 90 Days Past Due and Still Accruing		0
Total consumer loans | Consumer 1-4 Family Mortgage | Total Accruing
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans		$ 0