FAIR VALUE (Details 3) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013		Mar. 31, 2012
Derivative Payable
Reconciliation of the beginning and ending balances for major liability categories measured at fair value on a recurring basis using significant unobservable inputs (Level 3)
Beginning balance	$ (3,052)		$ (2,634)
Total gains or (losses)
Included in earnings	(181)	[1]	(488)	[1]
Ending balance	(3,233)		(3,122)
Changes in unrealized losses included in earnings relating to assets and liabilities held at end of period	181		488
Corporate debt securities | Non-investment grade
Reconciliation of the beginning and ending balances for major asset categories measured at fair value on a recurring basis using significant unobservable inputs (Level 3)
Beginning balance	4,800		2,235
Total gains or (losses)
Included in earnings			(99)	[1]
Included in other comprehensive income (unrealized)	549	[1],[2]	225	[1],[2]
Settlements	(65)	[3]	(114)	[3]
Ending balance	5,284		2,247
Total gains or (losses)
Changes in unrealized losses included in earnings relating to assets and liabilities held at end of period			$ 99

[1] Total gains or losses represent the total realized and unrealized gains and losses recorded for Level 3 assets and liabilities. Realized gains or losses are reported in the condensed consolidated statements of income.

[2] Unrealized gains or losses on investment securities are reported in accumulated other comprehensive income (loss), net of tax, in the condensed consolidated statements of comprehensive income.

[3] Purchases, issuances, sales, and settlements represent Level 3 assets and liabilities that were either purchased, issued, sold, or settled during the period. The amounts are recorded at their end of period fair values.