FAIR VALUE MEASURES (Details 3) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Disclosure, Nonrecurring	$ 41,761	$ 57,337	$ 56,869
Assets, Fair Value Disclosure, Recurring	969,470	926,217	897,054
Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Disclosure, Nonrecurring	41,761	57,337	56,869
Assets, Fair Value Disclosure, Recurring	1,500	2,500	2,998
Fair Value, Measurements, Recurring [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, Fair Value Disclosure, Recurring	$ 1,500	$ 2,500	$ 2,998
Valuation Technique	Discounted par values	Discounted par values	Discounted par values
Fair Value Measurements Unobservable Inputs	Credit quality of underlying issuer	Credit quality of underlying issuer	Credit quality of underlying issuer
Fair value inputs discount rate range	0.00%	0.00%	0.00%
Fair Value, Measurements, Recurring [Member] | Weighted Average Daily Balance [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value inputs discount rate range	0.00%	0.00%	0.00%
Impaired Loans Carried At Fair Value [Member] | Fair Value, Measurements, Nonrecurring [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Disclosure, Nonrecurring	$ 26,210	$ 27,859	$ 27,069
Valuation Technique	Third-party appraisals and discounted cash flows	Third-party appraisals and discounted cash flows	Third-party appraisals and discounted cash flows
Fair Value Measurements Unobservable Inputs	Collateral discounts and discount rates	Collateral discounts and discount rates	Collateral discounts and discount rates
Impaired Loans Carried At Fair Value [Member] | Fair Value, Measurements, Nonrecurring [Member] | Maximum [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value inputs discount rate range	100.00%	50.00%	100.00%
Impaired Loans Carried At Fair Value [Member] | Fair Value, Measurements, Nonrecurring [Member] | Minimum [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value inputs discount rate range	15.00%	0.00%	0.00%
Impaired Loans Carried At Fair Value [Member] | Fair Value, Measurements, Nonrecurring [Member] | Weighted Average Daily Balance [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value inputs discount rate range	27.00%	25.00%	29.00%
Other real estate owned [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Disclosure, Nonrecurring	$ 425	$ 5,737	$ 10,456
Other real estate owned [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Disclosure, Nonrecurring	425	5,737	10,456
Other real estate owned [Member] | Fair Value, Measurements, Nonrecurring [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Disclosure, Nonrecurring	$ 425	$ 5,737	$ 10,456
Valuation Technique	Third-party appraisals, sales contracts, broker price opinions	Third-party appraisals, sales contracts, broker price opinions	Third-party appraisals, sales contracts, broker price opinions
Fair Value Measurements Unobservable Inputs	Collateral discounts and estimated costs to sell	Collateral discounts and estimated costs to sell	Collateral discounts and estimated costs to sell
Other real estate owned [Member] | Fair Value, Measurements, Nonrecurring [Member] | Maximum [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value inputs discount rate range	90.00%	43.00%	90.00%
Other real estate owned [Member] | Fair Value, Measurements, Nonrecurring [Member] | Minimum [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value inputs discount rate range	10.00%	0.00%	10.00%
Other real estate owned [Member] | Fair Value, Measurements, Nonrecurring [Member] | Weighted Average Daily Balance [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value inputs discount rate range	12.00%	14.00%	13.00%
Purchased, non-covered other real estate owned [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Disclosure, Nonrecurring	$ 14,126	$ 11,538	$ 14,333
Purchased, non-covered other real estate owned [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Disclosure, Nonrecurring	14,126	11,538	14,333
Purchased, non-covered other real estate owned [Member] | Fair Value, Measurements, Nonrecurring [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Disclosure, Nonrecurring	$ 14,126	$ 11,538	$ 14,333
Valuation Technique	Third-party appraisals	Third-party appraisals	Third-party appraisals
Fair Value Measurements Unobservable Inputs	Collateral discounts and estimated costs to sell	Collateral discounts and estimated costs to sell	Collateral discounts and estimated costs to sell
Purchased, non-covered other real estate owned [Member] | Fair Value, Measurements, Nonrecurring [Member] | Maximum [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value inputs discount rate range	75.00%	75.00%	69.00%
Purchased, non-covered other real estate owned [Member] | Fair Value, Measurements, Nonrecurring [Member] | Minimum [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value inputs discount rate range	10.00%	0.00%	10.00%
Purchased, non-covered other real estate owned [Member] | Fair Value, Measurements, Nonrecurring [Member] | Weighted Average Daily Balance [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value inputs discount rate range	15.00%	20.00%	19.00%
Covered other real estate owned [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Disclosure, Nonrecurring	$ 1,000	$ 12,203	$ 5,011
Covered other real estate owned [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Disclosure, Nonrecurring	1,000	12,203	5,011
Covered other real estate owned [Member] | Fair Value, Measurements, Nonrecurring [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Disclosure, Nonrecurring	$ 1,000	$ 12,203	$ 5,011
Valuation Technique	Third-party appraisals	Third-party appraisals	Third-party appraisals
Fair Value Measurements Unobservable Inputs	Collateral discounts and estimated costs to sell	Collateral discounts and estimated costs to sell	Collateral discounts and estimated costs to sell
Covered other real estate owned [Member] | Fair Value, Measurements, Nonrecurring [Member] | Maximum [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value inputs discount rate range	56.00%	73.00%	74.00%
Covered other real estate owned [Member] | Fair Value, Measurements, Nonrecurring [Member] | Minimum [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value inputs discount rate range	15.00%	0.00%	0.00%
Covered other real estate owned [Member] | Fair Value, Measurements, Nonrecurring [Member] | Weighted Average Daily Balance [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value inputs discount rate range	16.00%	12.00%	12.00%