LOANS - Average Recorded Investment and Interest Income Recognized (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2018	Mar. 31, 2017
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	$ 73,311	$ 88,988
Interest Income Recognized	187	154
Originated
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	59,251	46,214
Interest Income Recognized	61	15
Originated \| Commercial & industrial
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	52,510	37,834
Interest Income Recognized	61	8
Originated \| Mortgage warehouse
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	0	0
Interest Income Recognized	0	0
Originated \| Owner occupied commercial real estate
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	0	0
Interest Income Recognized	0	0
Originated \| Commercial real estate
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	186	5,512
Interest Income Recognized	0	0
Originated \| Construction, land & land development
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	3,404	0
Interest Income Recognized	0	0
Originated \| Residential mortgage
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	3,097	2,658
Interest Income Recognized	0	6
Originated \| Consumer and other
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	54	210
Interest Income Recognized	0	1
Acquired
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	14,060	42,774
Interest Income Recognized	126	139
Acquired \| Commercial & industrial
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	10,924	29,324
Interest Income Recognized	123	139
Acquired \| Owner occupied commercial real estate
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	1,791	8,873
Interest Income Recognized	0	0
Acquired \| Commercial real estate
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	115	1,971
Interest Income Recognized	3	0
Acquired \| Construction, land & land development
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	711	1,096
Interest Income Recognized	0	0
Acquired \| Residential mortgage
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	307	1,436
Interest Income Recognized	0	0
Acquired \| Consumer and other
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	212	74
Interest Income Recognized	$ 0	$ 0

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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=84173941&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=84173941&loc=d3e5258-111524

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- Definition

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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