LOANS AND ALLOWANCE FOR LOAN LOSSES (COVID-19 Loan Modifications) (Details $ in Thousands	9 Months Ended
Sep. 30, 2020 USD ($) loan	Dec. 31, 2019 USD ($)
Financing Receivable, Impaired [Line Items]
Total loans	$ 2,955,936	$ 2,646,677
COVID 19 - Impact
Financing Receivable, Impaired [Line Items]
Number of total loans modified \| loan	107
Total loans	$ 329,900
Percentage of total loans	11.00%

Amount after allowance and 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 and loans held for sale.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=118952595&loc=d3e4428-111522

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.7)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant