LOANS AND LEASES (Aging of Recorded Investment) (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	$ 5,174,837	$ 5,101,649
Nonaccrual Loans	5,336	5,881
Total Past Due and Nonaccrual	23,684	18,161
Loans	5,174,837	5,101,649
Nonaccrual Loans with No ACL	4,624	5,409
Accruing Loans 30 - 59 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	11,470	9,601
Accruing Loans 60 - 89 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	5,554	1,316
Accruing Loans Greater Than 90 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	1,324	1,363
Financial Asset, Not Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	5,151,153	5,083,488
Commercial, financial and agricultural: \| Small Business Administration Paycheck Protection Program
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	44,231	91,327
Nonaccrual Loans	0	0
Total Past Due and Nonaccrual	0	0
Loans	44,231	91,327
Nonaccrual Loans with No ACL	0	0
Commercial, financial and agricultural: \| Small Business Administration Paycheck Protection Program \| Accruing Loans 30 - 59 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	0	0
Commercial, financial and agricultural: \| Small Business Administration Paycheck Protection Program \| Accruing Loans 60 - 89 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	0	0
Commercial, financial and agricultural: \| Small Business Administration Paycheck Protection Program \| Accruing Loans Greater Than 90 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	0	0
Commercial, financial and agricultural: \| Small Business Administration Paycheck Protection Program \| Financial Asset, Not Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	44,231	91,327
Commercial, financial and agricultural: \| Other
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	544,416	530,121
Nonaccrual Loans	293	183
Total Past Due and Nonaccrual	1,918	2,702
Loans	544,416	530,121
Nonaccrual Loans with No ACL	0	0
Commercial, financial and agricultural: \| Other \| Accruing Loans 30 - 59 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	710	970
Commercial, financial and agricultural: \| Other \| Accruing Loans 60 - 89 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	323	604
Commercial, financial and agricultural: \| Other \| Accruing Loans Greater Than 90 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	592	945
Commercial, financial and agricultural: \| Other \| Financial Asset, Not Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	542,498	527,419
Real Estate \| Construction
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	123,317	122,867
Nonaccrual Loans	0	0
Total Past Due and Nonaccrual	0	638
Loans	123,317	122,867
Nonaccrual Loans with No ACL	0	0
Real Estate \| Construction \| Accruing Loans 30 - 59 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	0	638
Real Estate \| Construction \| Accruing Loans 60 - 89 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	0	0
Real Estate \| Construction \| Accruing Loans Greater Than 90 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	0	0
Real Estate \| Construction \| Financial Asset, Not Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	123,317	122,229
Real Estate \| Real estate, Mortgage - residential
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	1,874,048	1,875,980
Nonaccrual Loans	3,804	4,623
Total Past Due and Nonaccrual	15,965	9,938
Nonaccrual Loans with No ACL	3,804	4,623
Real Estate \| Real estate, Mortgage - residential \| Accruing Loans 30 - 59 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	7,512	5,315
Real Estate \| Real estate, Mortgage - residential \| Accruing Loans 60 - 89 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	4,538	0
Real Estate \| Real estate, Mortgage - residential \| Accruing Loans Greater Than 90 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	111	0
Real Estate \| Real estate, Mortgage - residential \| Financial Asset, Not Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	1,858,083	1,866,042
Real Estate \| Home Equity
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	676,326	637,249
Nonaccrual Loans	820	786
Total Past Due and Nonaccrual	1,093	1,064
Loans	676,326	637,249
Nonaccrual Loans with No ACL	820	786
Real Estate \| Home Equity \| Accruing Loans 30 - 59 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	135	234
Real Estate \| Home Equity \| Accruing Loans 60 - 89 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	138	0
Real Estate \| Home Equity \| Accruing Loans Greater Than 90 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	0	44
Real Estate \| Home Equity \| Financial Asset, Not Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	675,233	636,185
Real Estate \| Commercial mortgage
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	1,243,499	1,220,204
Nonaccrual Loans	0	0
Total Past Due and Nonaccrual	0	0
Nonaccrual Loans with No ACL	0	0
Real Estate \| Commercial mortgage \| Accruing Loans 30 - 59 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	0	0
Real Estate \| Commercial mortgage \| Accruing Loans 60 - 89 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	0	0
Real Estate \| Commercial mortgage \| Accruing Loans Greater Than 90 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	0	0
Real Estate \| Commercial mortgage \| Financial Asset, Not Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	1,243,499	1,220,204
Consumer \| Consumer Loan
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	669,000	623,901
Nonaccrual Loans	419	289
Total Past Due and Nonaccrual	4,708	3,819
Nonaccrual Loans with No ACL	0	0
Consumer \| Consumer Loan \| Accruing Loans 30 - 59 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	3,113	2,444
Consumer \| Consumer Loan \| Accruing Loans 60 - 89 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	555	712
Consumer \| Consumer Loan \| Accruing Loans Greater Than 90 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	621	374
Consumer \| Consumer Loan \| Financial Asset, Not Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	$ 664,292	$ 620,082

Recorded Investment in financing receivables that are past due and on nonaccrual status on the balance sheet date.

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- Definition

Amount of financing receivable on nonaccrual status with no allowance for credit loss.

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Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

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Amount, before allowance for credit loss, of financing receivable.

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