LOANS - Average Recorded Investment and Interest Income Recognized (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	$ 70,102	$ 71,766	$ 71,681	$ 79,067
Interest Income Recognized	248	275	609	610
Originated
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	62,499	46,666	60,543	45,754
Interest Income Recognized	140	145	256	185
Originated | Commercial & industrial
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	40,139	41,829	47,309	39,892
Interest Income Recognized	0	47	116	59
Originated | Owner occupied commercial real estate
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	4,642	0	2,320	0
Interest Income Recognized	0	0	0	0
Originated | Commercial real estate
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	13,382	723	5,251	2,744
Interest Income Recognized	140	0	140	0
Originated | Construction, land & land development
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	486	3,016	2,107	1,005
Interest Income Recognized	0	0	0	0
Originated | Residential mortgage
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	3,807	1,023	3,508	1,977
Interest Income Recognized	0	97	0	123
Originated | Consumer and other
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	43	75	48	136
Interest Income Recognized	0	1	0	3
Acquired
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	7,603	25,100	11,138	33,313
Interest Income Recognized	108	130	353	425
Acquired | Commercial & industrial
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	4,847	16,693	8,242	21,989
Interest Income Recognized	53	77	295	348
Acquired | Owner occupied commercial real estate
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	1,688	6,918	1,737	7,977
Interest Income Recognized	46	0	46	0
Acquired | Commercial real estate
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	67	42	97	1,093
Interest Income Recognized	9	0	12	0
Acquired | Construction, land & land development
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	695	1,021	703	1,186
Interest Income Recognized	0	30	0	45
Acquired | Residential mortgage
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	101	212	151	900
Interest Income Recognized	0	23	0	32
Acquired | Consumer and other
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	205	214	208	168
Interest Income Recognized	$ 0	$ 0	$ 0	$ 0