LOANS AND ALLOWANCE FOR LOAN LOSSES (Details 4) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 2,914,502	$ 2,899,037
30-89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial, Real estate	8,684	7,971
Commercial, Commercial and industrial	5,884	5,612
Commercial, Construction and development	2,618	1,162
Consumer, Residential real estate	7,870	4,872
Consumer, Construction and development	308	569
Consumer, Home equity	2,874	3,985
Consumer, Other consumer	442	797
Total	28,680	24,968
90 Days or Greater Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial, Real estate	6,290	2,383
Commercial, Commercial and industrial	1,832	1,707
Commercial, Construction and development	453	369
Consumer, Residential real estate	2,696	2,210
Consumer, Construction and development	250	12
Consumer, Home equity	544	395
Consumer, Other consumer	85	70
Total	12,150	7,146
Total Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial, Real estate	14,974	10,354
Commercial, Commercial and industrial	7,716	7,319
Commercial, Construction and development	3,071	1,531
Consumer, Residential real estate	10,566	7,082
Consumer, Construction and development	558	581
Consumer, Home equity	3,418	4,380
Consumer, Other consumer	527	867
Total	40,830	32,114
Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial, Real estate	1,249,402	1,222,641
Commercial, Commercial and industrial	440,540	447,511
Commercial, Construction and development	348,735	336,919
Consumer, Residential real estate	315,028	322,539
Consumer, Construction and development	28,148	27,855
Consumer, Home equity	267,515	267,954
Consumer, Other consumer	34,687	35,377
Total	2,684,055	2,660,796
Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial, Real estate	1,264,376	1,232,995
Commercial, Commercial and industrial	448,256	454,830
Commercial, Construction and development	351,806	338,450
Consumer, Residential real estate	325,594	329,621
Consumer, Construction and development	28,706	28,436
Consumer, Home equity	270,933	272,334
Consumer, Other consumer	35,214	36,244
Total	2,724,885	2,692,910
Non-PCI Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial, Real estate	1,264,376	1,232,995
Commercial, Commercial and industrial	448,256	454,830
Commercial, Construction and development	351,806	338,450
Consumer, Residential real estate	325,594	329,621
Consumer, Construction and development	28,706	28,436
Consumer, Home equity	270,933	272,334
Consumer, Other consumer	35,214	36,244
Total	2,724,885	2,692,910
Non-PCI Loans \| Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial, Real estate	1,215,732	1,187,938
Commercial, Commercial and industrial	429,272	433,093
Commercial, Construction and development	346,346	334,213
Consumer, Residential real estate	311,855	316,743
Consumer, Construction and development	27,430	27,447
Consumer, Home equity	262,952	264,953
Consumer, Other consumer	34,666	35,736
Total	2,628,253	2,600,123
Non-PCI Loans \| Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial, Real estate	31,010	32,142
Commercial, Commercial and industrial	12,636	15,148
Commercial, Construction and development	3,482	2,128
Consumer, Residential real estate	5,425	4,527
Consumer, Construction and development	750	735
Consumer, Home equity	4,714	4,238
Consumer, Other consumer	215	237
Total	58,232	59,155
Non-PCI Loans \| Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial, Real estate	17,634	12,915
Commercial, Commercial and industrial	6,280	6,510
Commercial, Construction and development	1,978	2,109
Consumer, Residential real estate	8,314	8,351
Consumer, Construction and development	526	254
Consumer, Home equity	3,267	3,143
Consumer, Other consumer	278	269
Total	38,277	33,551
Non-PCI Loans \| Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial, Real estate	0	0
Commercial, Commercial and industrial	68	79
Commercial, Construction and development	0	0
Consumer, Residential real estate	0	0
Consumer, Construction and development	0	0
Consumer, Home equity	0	0
Consumer, Other consumer	55	2
Total	123	81
PCI Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial, Real estate	111,395	122,541
Commercial, Commercial and industrial	10,865	14,018
Commercial, Construction and development	32,404	32,357
Consumer, Residential real estate	28,768	30,628
Consumer, Construction and development	1,471	1,625
Consumer, Home equity	4,157	4,328
Consumer, Other consumer	557	630
Total	189,617	206,127
PCI Loans \| Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial, Real estate	56,538	57,095
Commercial, Commercial and industrial	7,379	7,408
Commercial, Construction and development	11,916	6,857
Consumer, Residential real estate	13,149	12,703
Consumer, Construction and development	260	189
Consumer, Home equity	172	143
Consumer, Other consumer	7	2
Total	89,421	84,397
PCI Loans \| Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial, Real estate	37,397	45,711
Commercial, Commercial and industrial	1,703	2,936
Commercial, Construction and development	11,241	16,374
Consumer, Residential real estate	8,161	8,206
Consumer, Construction and development	539	723
Consumer, Home equity	2,694	2,827
Consumer, Other consumer	457	488
Total	62,192	77,265
PCI Loans \| Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial, Real estate	17,460	19,735
Commercial, Commercial and industrial	1,783	3,674
Commercial, Construction and development	9,247	9,126
Consumer, Residential real estate	7,458	9,719
Consumer, Construction and development	672	713
Consumer, Home equity	1,289	1,358
Consumer, Other consumer	93	140
Total	38,002	44,465
PCI Loans \| Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial, Real estate	0	0
Commercial, Commercial and industrial	0	0
Commercial, Construction and development	0	0
Consumer, Residential real estate	0	0
Consumer, Construction and development	0	0
Consumer, Home equity	2	0
Consumer, Other consumer	0	0
Total	$ 2	$ 0

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Amount before allowance of loans issued to build, improve or remodel a residential home. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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