FAIR VALUE MEASUREMENTS (Details 2) (Private label CMOs, USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013
Activity for assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3)
Balance at the beginning of the period	$ 44,684
Total realized in earnings	1,587
Decrease in unrealized gain in comprehensive income	(731)
Net settlements	(6,162)
Balance at the end of the period	$ 39,378
Recurring basis | Level 3 | Minimum
Information about quantitative unobservable inputs, assumptions and valuation methodology used to evaluate the fair values
Voluntary annual prepayment speeds (as a percent)	0.00%
Annual default rates (as a percent)	0.00%
Loss severity rates (as a percent)	0.00%
Discount rates (as a percent)	0.00%
Recurring basis | Level 3 | Maximum
Information about quantitative unobservable inputs, assumptions and valuation methodology used to evaluate the fair values
Voluntary annual prepayment speeds (as a percent)	32.60%
Annual default rates (as a percent)	46.20%
Loss severity rates (as a percent)	64.90%
Discount rates (as a percent)	13.50%
Recurring basis | Level 3 | Weighted average
Information about quantitative unobservable inputs, assumptions and valuation methodology used to evaluate the fair values
Voluntary annual prepayment speeds (as a percent)	8.10%
Annual default rates (as a percent)	3.20%
Loss severity rates (as a percent)	35.30%
Discount rates (as a percent)	5.80%