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LOANS AND ALLOWANCE FOR LOAN LOSSES (COVID-19 Loan Modifications) (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021 loan	Sep. 30, 2020 loan	Sep. 30, 2021 USD ($) loan	Sep. 30, 2020 loan
Financing Receivable, Impaired [Line Items]
Financing Receivable, Modifications, Number of Contracts | loan	0	0	0	0
COVID 19 - Impact
Financing Receivable, Impaired [Line Items]
Financing Receivable, Modifications, Number of Contracts | loan			10
Loan Restructuring, Trial Modifications, Amount			$ 49.1
Percentage of Loans and Leases Receivable, Modified			1.40%
COVID 19 - Impact | Principal Payment Deferrals
Financing Receivable, Impaired [Line Items]
Loan Restructuring, Trial Modifications, Amount			$ 39.2
Percentage of Loans and Leases Receivable, Modified			1.10%
COVID 19 - Impact | Full Payment Deferrals
Financing Receivable, Impaired [Line Items]
Loan Restructuring, Trial Modifications, Amount			$ 10.0
Percentage of Loans and Leases Receivable, Modified			0.30%

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Percentage of loans and leases receivable modified.

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Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953676-111524

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953676-111524

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