LOANS AND ALLOWANCE FOR LOAN LOSSES (Textual) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Financing Receivable, Allowance for Credit Losses [Line Items]
Impaired financing receivable individually evaluated for impairment	$ 30,702,000	$ 37,541,000
Allowance allocated to troubled debt restructurings	10,423,000	12,471,000
Minimum [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Impaired financing receivable individually evaluated for impairment	500,000
Troubled Debt Restructurings [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance allocated to troubled debt restructurings	5,800,000	6,100,000
Impaired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing receivable, allowance for credit losses, accumulated write-downs	43,300,000	55,000,000
Hamp Program [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Troubled debt restructurings under HAMP Program	$ 72,800,000	$ 72,700,000