FAIR VALUE MEASUREMENT AND FAIR VALUE OF FINANCIAL INSTRUMENTS (Details 5) (Fair Value, Measurements, Nonrecurring, USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
OREO
Fair Value, Assets Measured on a Nonrecurring Basis
Increase (decrease) in value of assets	$ (277)	$ (526)
Loans Receivable | Non-PCI loans
Fair Value, Assets Measured on a Nonrecurring Basis
Increase (decrease) in value of assets	(1,868)	(7,359)
Loans Receivable | Non-PCI loans | CRE
Fair Value, Assets Measured on a Nonrecurring Basis
Increase (decrease) in value of assets	841	(464)
Loans Receivable | Non-PCI loans | C&I
Fair Value, Assets Measured on a Nonrecurring Basis
Increase (decrease) in value of assets	(2,470)	(6,530)
Loans Receivable | Non-PCI loans | Residential
Fair Value, Assets Measured on a Nonrecurring Basis
Increase (decrease) in value of assets	$ (239)	$ (365)