CORPORATE LOANS AND ALLOWANCE FOR LOAN LOSSES (Details 8) (USD $)	12 Months Ended
	Dec. 31, 2013 loan issuer	Dec. 31, 2012 issuer loan	Dec. 31, 2011
Summary of corporate loans
Charge-offs recorded	$ 31,300,000	$ 14,400,000	$ 31,800,000
Corporate loans, held for sale (in dollars)	279,748,000	128,289,000
Corporate loans transferred from held for investment to held for sale	323,416,000	114,995,000	862,244,000
Corporate loans transferred from held for sale to held for investment		114,871,000	448,329,000
Net charge for lower of cost or estimated fair value adjustment	5,899,000	2,656,000	65,163,000
Number of issuers in default	2	1
Number of loans in default	6	2
Amortized cost of corporate loans in default	215,700,000	50,400,000
Corporate Loan Held for Investment
Summary of corporate loans
Charge-offs recorded	31,285,000	14,433,000	31,817,000
Corporate loans transferred from held for investment to held for sale	323,400,000	115,000,000
Allocated component of allowance for loan losses	203,700,000
Corporate Loans Held for Sale
Summary of corporate loans
Corporate loans, held for sale (in dollars)	279,700,000	128,300,000
Corporate loans transferred from held for sale to held for investment	0	114,900,000
Net charge for lower of cost or estimated fair value adjustment	5,900,000	2,700,000	65,200,000
Corporate Loans Held for Sale | Carrying reported amount
Summary of corporate loans
Corporate loans, held for sale (in dollars)	279,748,000	128,289,000	317,300,000
Corporate Loans, at Estimated Fair Value
Summary of corporate loans
Amortized cost of corporate loans in default	$ 12,000,000