GOODWILL AND OTHER INTANGIBLE ASSETS (Details 2) (USD $)	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Premiums on Acquired Deposits
Amortization of premiums on deposits acquired	$ 2,391,000us-gaap_AmortizationOfIntangibleAssets	$ 2,500,000us-gaap_AmortizationOfIntangibleAssets
Estimated Future Amortization Expense of Premiums on Acquired Deposits
Nine months ending December 31, 2015	6,842,000
Year ending December 31, 2016	8,086,000
Year ending December 31, 2017	6,935,000
Year ending December 31, 2018	5,883,000
Year ending December 31, 2019	4,864,000
Thereafter	10,307,000
Total	42,917,000us-gaap_FiniteLivedIntangibleAssetsNet
Premiums on acquired deposits
Premiums on Acquired Deposits
Gross carrying amount of premiums on acquired deposits	108,800,000		108,800,000
Accumulated amortization for premiums on acquired deposits	$ 65,900,000		$ 63,500,000

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

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Bank deposits belonging to an acquired bank that can be counted on as a stable source of lending funds. These deposits have the following attributes: predictable costs and low sensitivity to interest rates. This intangible asset is usually amortized over its estimated useful life.

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized in the remainder of the fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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