FAIR VALUE MEASUREMENT AND FAIR VALUE OF FINANCIAL INSTRUMENTS (Details 4) (Fair Value, Measurements, Nonrecurring, USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Fair Value Measurements
Fair Value, Assets Measured on Nonrecurring Basis
Non-covered loans	$ 56,514	$ 57,751
Fair Value Measurements | Non-covered OREO
Fair Value, Assets Measured on Nonrecurring Basis
Non-covered OREO	15,556	13,031
Fair Value Measurements | Covered OREO
Fair Value, Assets Measured on Nonrecurring Basis
Covered OREO	2,400	17,284
Fair Value Measurements | Residential
Fair Value, Assets Measured on Nonrecurring Basis
Non-covered loans	19,930	12,791
Fair Value Measurements | Commercial real estate
Fair Value, Assets Measured on Nonrecurring Basis
Non-covered loans	25,122	29,559
Fair Value Measurements | Commercial and Industrial ("C&I")
Fair Value, Assets Measured on Nonrecurring Basis
Non-covered loans	11,355	15,120
Fair Value Measurements | Consumer
Fair Value, Assets Measured on Nonrecurring Basis
Non-covered loans	107	281
Significant Unobservable Inputs (Level 3)
Fair Value, Assets Measured on Nonrecurring Basis
Non-covered loans	56,514	57,751
Significant Unobservable Inputs (Level 3) | Non-covered OREO
Fair Value, Assets Measured on Nonrecurring Basis
Non-covered OREO	15,556	13,031
Significant Unobservable Inputs (Level 3) | Covered OREO
Fair Value, Assets Measured on Nonrecurring Basis
Covered OREO	2,400	17,284
Significant Unobservable Inputs (Level 3) | Non-covered impaired loans
Fair Value, Assets Measured on Nonrecurring Basis
Non-covered loans	56,514	57,751
Significant Unobservable Inputs (Level 3) | Residential
Fair Value, Assets Measured on Nonrecurring Basis
Non-covered loans	19,930	12,791
Significant Unobservable Inputs (Level 3) | Commercial real estate
Fair Value, Assets Measured on Nonrecurring Basis
Non-covered loans	25,122	29,559
Significant Unobservable Inputs (Level 3) | Commercial and Industrial ("C&I")
Fair Value, Assets Measured on Nonrecurring Basis
Non-covered loans	11,355	15,120
Significant Unobservable Inputs (Level 3) | Consumer
Fair Value, Assets Measured on Nonrecurring Basis
Non-covered loans	$ 107	$ 281