FAIR VALUE OF FINANCIAL INSTRUMENTS (Non-recurring Basis) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans individually evaluated for valuation adjustments	$ 60,647,000	$ 63,123,000
Impaired loans individually evaluated for valuation adjustments, write-downs	9,998,000	25,887,000
Impaired loans individually evaluated for valuation adjustments, specific reserves	5,188,000	5,725,000
Impaired loans collectively evaluated for valuation adjustments	3,357,798,000	3,172,591,000
Impaired loans collectively evaluated for valuation adjustments, allowances	69,802,000	71,766,000
Servicing Contracts for Third Parties [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans serviced for others	1,216,000,000	1,031,000,000
Nonrecurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Classifed loans	91,000,000
Impaired classified loans	72,000,000
Impaired loans individually evaluated for valuation adjustments	61,000,000
Impaired loans individually evaluated for valuation adjustments, carrying value	65,000,000
Impaired loans individually evaluated for valuation adjustments, write-downs	4,000,000
Impaired loans individually evaluated for valuation adjustments, specific reserves	5,000,000
Impaired loans collectively evaluated for valuation adjustments	12,000,000
Impaired loans collectively evaluated for valuation adjustments, allowances	289,000
Impairment of real estate owned	$ 785,000	$ 5,200,000