FAIR VALUE ACCOUNTING AND MEASUREMENT (Commitments) (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Commitments to originate loans held for sale [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance-sheet financial instruments, notional amount	$ 30,181,000	$ 89,049,000
Commitments to sell loans [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance-sheet financial instruments, notional amount	17,877,000	70,263,000
Commitments to originate loans [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance-sheet financial instruments, notional amount	18,657,000	10,733,000
Commitment to fund loans [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance-sheet financial instruments, notional amount	1,119,000,000	925,000,000
Commitment to fund loans [Member] | Level 2 [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance-sheet financial instruments, carrying value	0	0
Commitments to purchase securities [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance-sheet financial instruments, notional amount	0	11,500,000
Number of commitments to purchase securities	0	1
Commitments to sell mortgage backed securities [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance-sheet financial instruments, notional amount	$ 13,470,000	$ 41,500,000