LOANS AND ALLOWANCE FOR CREDIT LOSSES - Aging Analysis of the Recorded Investment in Past Due Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Accounts Notes And Loans Receivable [Line Items]
Loans	$ 8,068,718	$ 7,754,751
Nonaccrual Loans	43,349	45,048
30-89 Days
Accounts Notes And Loans Receivable [Line Items]
Loans	19,277	9,758
90 or More Days
Accounts Notes And Loans Receivable [Line Items]
Loans	0	0
Total Past Due Loans
Accounts Notes And Loans Receivable [Line Items]
Loans	19,277	9,758
Current Loans
Accounts Notes And Loans Receivable [Line Items]
Loans	8,006,092	7,699,945
Commercial and industrial
Accounts Notes And Loans Receivable [Line Items]
Loans	1,512,476	1,455,795
Nonaccrual Loans	22,800	25,297
Commercial and industrial | 30-89 Days
Accounts Notes And Loans Receivable [Line Items]
Loans	2,210	1,591
Commercial and industrial | 90 or More Days
Accounts Notes And Loans Receivable [Line Items]
Loans	0	0
Commercial and industrial | Total Past Due Loans
Accounts Notes And Loans Receivable [Line Items]
Loans	2,210	1,591
Commercial and industrial | Current Loans
Accounts Notes And Loans Receivable [Line Items]
Loans	1,487,466	1,428,907
Paycheck Protection Program (PPP)
Accounts Notes And Loans Receivable [Line Items]
Loans	8,027	13,226
Nonaccrual Loans	168	105
Paycheck Protection Program (PPP) | 30-89 Days
Accounts Notes And Loans Receivable [Line Items]
Loans	56	517
Paycheck Protection Program (PPP) | 90 or More Days
Accounts Notes And Loans Receivable [Line Items]
Loans	0	0
Paycheck Protection Program (PPP) | Total Past Due Loans
Accounts Notes And Loans Receivable [Line Items]
Loans	56	517
Paycheck Protection Program (PPP) | Current Loans
Accounts Notes And Loans Receivable [Line Items]
Loans	7,803	12,604
Real estate: | Commercial real estate (including multi-family residential)
Accounts Notes And Loans Receivable [Line Items]
Loans	4,038,487	3,931,480
Nonaccrual Loans	8,221	9,970
Real estate: | Commercial real estate (including multi-family residential) | 30-89 Days
Accounts Notes And Loans Receivable [Line Items]
Loans	3,302	3,222
Real estate: | Commercial real estate (including multi-family residential) | 90 or More Days
Accounts Notes And Loans Receivable [Line Items]
Loans	0	0
Real estate: | Commercial real estate (including multi-family residential) | Total Past Due Loans
Accounts Notes And Loans Receivable [Line Items]
Loans	3,302	3,222
Real estate: | Commercial real estate (including multi-family residential) | Current Loans
Accounts Notes And Loans Receivable [Line Items]
Loans	4,026,964	3,918,288
Real estate: | Commercial real estate construction and land development
Accounts Notes And Loans Receivable [Line Items]
Loans	1,136,124	1,037,678
Nonaccrual Loans	388	0
Real estate: | Commercial real estate construction and land development | 30-89 Days
Accounts Notes And Loans Receivable [Line Items]
Loans	4,573	851
Real estate: | Commercial real estate construction and land development | 90 or More Days
Accounts Notes And Loans Receivable [Line Items]
Loans	0	0
Real estate: | Commercial real estate construction and land development | Total Past Due Loans
Accounts Notes And Loans Receivable [Line Items]
Loans	4,573	851
Real estate: | Commercial real estate construction and land development | Current Loans
Accounts Notes And Loans Receivable [Line Items]
Loans	1,131,163	1,036,827
Real estate: | 1-4 family residential (including home equity)
Accounts Notes And Loans Receivable [Line Items]
Loans	1,009,439	1,000,956
Nonaccrual Loans	10,880	9,404
Real estate: | 1-4 family residential (including home equity) | 30-89 Days
Accounts Notes And Loans Receivable [Line Items]
Loans	8,332	3,385
Real estate: | 1-4 family residential (including home equity) | 90 or More Days
Accounts Notes And Loans Receivable [Line Items]
Loans	0	0
Real estate: | 1-4 family residential (including home equity) | Total Past Due Loans
Accounts Notes And Loans Receivable [Line Items]
Loans	8,332	3,385
Real estate: | 1-4 family residential (including home equity) | Current Loans
Accounts Notes And Loans Receivable [Line Items]
Loans	990,227	988,167
Real estate: | Residential construction
Accounts Notes And Loans Receivable [Line Items]
Loans	311,208	268,150
Nonaccrual Loans	665	0
Real estate: | Residential construction | 30-89 Days
Accounts Notes And Loans Receivable [Line Items]
Loans	662	0
Real estate: | Residential construction | 90 or More Days
Accounts Notes And Loans Receivable [Line Items]
Loans	0	0
Real estate: | Residential construction | Total Past Due Loans
Accounts Notes And Loans Receivable [Line Items]
Loans	662	0
Real estate: | Residential construction | Current Loans
Accounts Notes And Loans Receivable [Line Items]
Loans	309,881	268,150
Consumer and other
Accounts Notes And Loans Receivable [Line Items]
Loans	52,957	47,466
Nonaccrual Loans	227	272
Consumer and other | 30-89 Days
Accounts Notes And Loans Receivable [Line Items]
Loans	142	192
Consumer and other | 90 or More Days
Accounts Notes And Loans Receivable [Line Items]
Loans	0	0
Consumer and other | Total Past Due Loans
Accounts Notes And Loans Receivable [Line Items]
Loans	142	192
Consumer and other | Current Loans
Accounts Notes And Loans Receivable [Line Items]
Loans	$ 52,588	$ 47,002