LOANS - Average recorded investment and interest income recognized (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	$ 76,390	$ 64,206
Interest income recognized	1,216	1,065
Originated
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	46,812	45,753
Interest income recognized	237	950
Originated \| Commercial & industrial
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	41,032	37,697
Interest income recognized	108	336
Originated \| Owner occupied commercial real estate
Financing Receivable, Impaired [Line Items]
Average Recorded Investment		1,016
Interest income recognized		73
Originated \| Commercial real estate
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	2,105	6,088
Interest income recognized		344
Originated \| Construction, land & land development
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	1,563	153
Interest income recognized	3	180
Originated \| Residential mortgage
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	1,994	629
Interest income recognized	123	9
Originated \| Consumer and other
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	118	170
Interest income recognized	3	8
Acquired
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	29,578	18,453
Interest income recognized	979	115
Acquired \| Commercial & industrial
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	20,295	12,463
Interest income recognized	570	25
Acquired \| Owner occupied commercial real estate
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	6,458	2,459
Interest income recognized	289
Acquired \| Commercial real estate
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	851	1,704
Interest income recognized		42
Acquired \| Construction, land & land development
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	1,068	198
Interest income recognized	88
Acquired \| Residential mortgage
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	718	1,624
Interest income recognized	32	48
Acquired \| Consumer and other
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	$ 188	$ 5

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- Definition

Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5212-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5258-111524

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Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.

+ References

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