LOANS RECEIVABLE (Details) (USD $)	1 Months Ended	9 Months Ended			9 Months Ended		1 Months Ended				1 Months Ended
	May 31, 2013	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012	Sep. 30, 2013 Secured Loans Receivable loan	Sep. 30, 2013 Unsecured Loans Receivable [Domain] loan	Jul. 25, 2013 Eight Percent Loan Receivable Maturing in 2017 [Member]	Dec. 31, 2012 Eight Percent Loan Receivable Maturing in 2017 [Member]	Jul. 31, 2013 Eight Percent Loan Receivable Maturing in 2017 [Member]	Jul. 31, 2013 Senior Secured Portion Sold Eight Percent Loan Receivable Maturing in 2017 [Member]	May 31, 2013 Twelve Percent Loan Receivable Maturing in 2017 [Member]	Dec. 31, 2012 Twelve Percent Loan Receivable Maturing in 2017 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Secured loans receivable, net		$ 439,100,000		$ 697,100,000
Proceeds from loans receivable		299,156,000	34,817,000		78,600,000
Number of loans repaid					6	1
Gain on sales of loans		3,600,000
Payments to Acquire Mortgage Backed Securities (MBS) categorized as Available-for-sale	21,000,000
Available-for-sale Securities, Amortized Cost Basis		21,400,000
Available-for-sale Securities		21,200,000
Loans receivable, aggregate principal amount							183,000,000	375,000,000				50,000,000
Loans receivable, interest rate								8.00%	9.40%	4.50%		12.00%
Proceeds from Sale of Loans Receivable							$ 66,400,000				$ 25,000,000