LOANS AND ALLOWANCE FOR LOAN AND LEASE LOSSES (Summary of Aging of the Loan Portfolio by Class) (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Financing Receivable, Recorded Investment, Past Due [Line Items]
Greater Than 90 Days and Still Accruing	$ 10,111	$ 7,490
Greater than 90 Days and still Accruing, % of total loans	0.07%	0.05%
Nonaccrual	$ 29,105	$ 27,038
Nonaccrual, % of total loans	0.19%	0.19%
Total Loans	$ 15,066,930	$ 14,449,142
Total loans, % of total loans	100.00%	100.00%
Current
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, current and past due	$ 15,013,716	$ 14,392,081
Current, % of total loans	99.64%	99.60%
30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, current and past due	$ 8,694	$ 18,855
Past Due, % of total loans	0.06%	0.13%
60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, current and past due	$ 5,304	$ 3,678
Past Due, % of total loans	0.04%	0.03%
Construction and Land Development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Greater Than 90 Days and Still Accruing	$ 24	$ 100
Nonaccrual	284	307
Total Loans	1,231,720	1,101,260
Construction and Land Development | Current
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, current and past due	1,231,117	1,099,555
Construction and Land Development | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, current and past due	295	1,253
Construction and Land Development | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, current and past due	0	45
Commercial Real Estate - Owner Occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Greater Than 90 Days and Still Accruing	2,463	2,167
Nonaccrual	3,978	7,178
Total Loans	1,952,189	1,982,608
Commercial Real Estate - Owner Occupied | Current
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, current and past due	1,945,136	1,970,323
Commercial Real Estate - Owner Occupied | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, current and past due	602	2,305
Commercial Real Estate - Owner Occupied | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, current and past due	10	635
Commercial Real Estate - Non-Owner Occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Greater Than 90 Days and Still Accruing	2,763	607
Nonaccrual	6,473	1,263
Total Loans	4,113,318	3,996,130
Commercial Real Estate - Non-Owner Occupied | Current
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, current and past due	4,104,082	3,993,091
Commercial Real Estate - Non-Owner Occupied | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, current and past due	0	1,121
Commercial Real Estate - Non-Owner Occupied | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, current and past due	0	48
Multifamily Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Greater Than 90 Days and Still Accruing	0	0
Nonaccrual	0	0
Total Loans	788,895	802,923
Multifamily Real Estate | Current
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, current and past due	788,895	801,694
Multifamily Real Estate | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, current and past due	0	1,229
Multifamily Real Estate | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, current and past due	0	0
Commercial and Industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Greater Than 90 Days and Still Accruing	810	459
Nonaccrual	2,738	1,884
Total Loans	3,373,148	2,983,349
Commercial and Industrial | Current
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, current and past due	3,368,946	2,980,008
Commercial and Industrial | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, current and past due	254	824
Commercial and Industrial | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, current and past due	400	174
Residential 1-4 Family - Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Greater Than 90 Days and Still Accruing	693	275
Nonaccrual	1,844	1,904
Total Loans	518,317	538,063
Residential 1-4 Family - Commercial | Current
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, current and past due	514,515	534,653
Residential 1-4 Family - Commercial | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, current and past due	1,076	1,231
Residential 1-4 Family - Commercial | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, current and past due	189	0
Residential 1-4 Family - Mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Greater Than 90 Days and Still Accruing	1,716	1,955
Nonaccrual	10,033	10,846
Total Loans	1,017,698	940,275
Residential 1-4 Family - Mortgage | Current
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, current and past due	1,001,632	919,833
Total Loans	1,001,632	919,833
Residential 1-4 Family - Mortgage | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, current and past due	1,504	5,951
Total Loans	1,504	5,951
Residential 1-4 Family - Mortgage | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, current and past due	2,813	1,690
Total Loans	2,813	1,690
Residential 1-4 Family - Mortgage | Greater Than 90 Days and still Accruing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	1,716	1,955
Residential 1-4 Family - Mortgage | Nonaccrual
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	10,033	10,846
Residential 1-4 Family - Revolving
Financing Receivable, Recorded Investment, Past Due [Line Items]
Greater Than 90 Days and Still Accruing	1,259	1,384
Nonaccrual	3,461	3,453
Total Loans	600,339	585,184
Residential 1-4 Family - Revolving | Current
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, current and past due	592,776	577,993
Total Loans	592,776	577,993
Residential 1-4 Family - Revolving | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, current and past due	1,729	1,843
Total Loans	1,729	1,843
Residential 1-4 Family - Revolving | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, current and past due	1,114	511
Total Loans	1,114	511
Residential 1-4 Family - Revolving | Greater Than 90 Days and still Accruing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	1,259	1,384
Residential 1-4 Family - Revolving | Nonaccrual
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	3,461	3,453
Auto
Financing Receivable, Recorded Investment, Past Due [Line Items]
Greater Than 90 Days and Still Accruing	243	344
Nonaccrual	291	200
Total Loans	585,756	592,976
Auto | Current
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, current and past due	581,781	589,235
Total Loans	581,781	589,235
Auto | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, current and past due	2,877	2,747
Total Loans	2,877	2,747
Auto | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, current and past due	564	450
Total Loans	564	450
Auto | Greater Than 90 Days and still Accruing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	243	344
Auto | Nonaccrual
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	291	200
Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Greater Than 90 Days and Still Accruing	74	108
Nonaccrual	3	3
Total Loans	134,709	152,545
Consumer | Current
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, current and past due	134,084	151,958
Total Loans	134,083	151,958
Consumer | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, current and past due	334	351
Total Loans	335	351
Consumer | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, current and past due	214	125
Total Loans	214	125
Consumer | Greater Than 90 Days and still Accruing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	74	108
Consumer | Nonaccrual
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	3	3
Other Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Greater Than 90 Days and Still Accruing	66	91
Nonaccrual	0	0
Total Loans	750,841	773,829
Other Commercial | Current
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, current and past due	750,752	773,738
Other Commercial | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, current and past due	23	0
Other Commercial | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, current and past due	$ 0	$ 0