FAIR VALUE ACCOUNTING AND MEASUREMENT (Asset Inputs) (Details) (USD $) In Thousands, unless otherwise specified			3 Months Ended
	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2012 TRUP CDO Securities [Member] Income Approach Valuation Technique [Member] Level 3 [Member]	Sep. 30, 2012 TPS Securities [Member] Income Approach Valuation Technique [Member] Level 3 [Member] financial_institution	Jun. 30, 2012 TPS Securities [Member] Income Approach Valuation Technique [Member] Level 3 [Member]	Dec. 31, 2011 TPS Securities [Member] Minimum [Member] Income Approach Valuation Technique [Member] Level 3 [Member]	Dec. 31, 2011 TPS Securities [Member] Maximum [Member] Income Approach Valuation Technique [Member] Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Amortized Cost	$ 92,017	$ 112,663	$ 32,000	$ 19,000
Number of Individual Financial Institutions Issuing Securities With No Direct Market Data or Independent Valuation Source Available				3
Discount Rate, Description of Variable Rate Basis				three-month LIBOR	three-month LIBOR
Discount Rate, Basis Spread on Variable Rate Basis				5.25%	5.50%	6.00%	9.00%
Asset gains			$ 2,300	$ 403