LOANS AND ALLOWANCE FOR LOAN LOSSES - Average Impaired Loans and Interest Recognized (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	$ 32,018	$ 20,521	$ 32,804	$ 23,211
Interest Income Recognized	251	387	671	782
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	13,848	7,461	14,343	8,963
Interest Income Recognized	98	211	332	374
Mortgage warehouse
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	0	0	0	0
Interest Income Recognized	0	0	0	0
Real estate \| Commercial real estate (including multi-family residential)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	16,568	12,486	16,737	13,373
Interest Income Recognized	147	159	327	381
Real estate \| Commercial real estate construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	209	0	314	0
Interest Income Recognized	3	0	7	0
Real estate \| 1-4 family residential (including home equity)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	1,342	524	1,352	814
Interest Income Recognized	3	16	4	24
Real estate \| Residential construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	0	0	0	0
Interest Income Recognized	0	0	0	0
Consumer and other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment	51	50	58	61
Interest Income Recognized	$ 0	$ 1	$ 1	$ 3

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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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