FAIR VALUE DISCLOSURES (Details 1) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010
Total gains or losses (realized/unrealized):
Included in earnings	$ 5,475		$ 7,652		$ 5,558
Fair Value, Inputs, Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance, beginning of year	15,380		19,582
Total gains or losses (realized/unrealized):
Included in earnings	(5,475)	[1]	(7,652)	[1]
Included in other comprehensive income (loss)	0		0
Issuances	4,887		3,450
Transfers in and/or out of level 3	0		0
Balance, end of year	$ 14,792		$ 15,380

[1] Gains or losses (realized/unrealized) are included in noninterest income in the consolidated statements of operations.