FAIR VALUE DISCLOSURES (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Total gains or losses (realized/unrealized):
Included in earnings (1)	$ 1,981	$ 1,880	$ 2,191	$ 2,369
Fair Value, Inputs, Level 3 [Member]
Balance, beginning of period	15,969	20,211	15,380	19,582
Total gains or losses (realized/unrealized):
Included in earnings (1)	(1,981)	(1,880)	(2,191)	(2,369)
Included in other comprehensive income	0	0	0	0
Issuances	1,194	495	1,993	1,613
Transfers in and/or out of level 3	0	0	0	0
Balance, end of period	$ 15,182	$ 18,826	$ 15,182	$ 18,826