INVESTMENTS IN LOAN POOL PARTICIPATIONS (Narrative) (Details) (USD $)	3 Months Ended									12 Months Ended
	Dec. 31, 2013		Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013		Dec. 31, 2012	Dec. 31, 2011
Accounts, Notes, Loans and Financing Receivable [Line Items]
Investments in loan pool participations	$ 34,700,000					$ 95,600,000				$ 34,700,000		$ 95,600,000
Unpaid principal balance	884,700,000	[1]								884,700,000	[1]
Investing distributions from loan pool participation										93,900,000		58,100,000	66,400,000
Interest income from loan pool participations and notes receivable	3,300,000		4,000,000	3,300,000	2,900,000	2,100,000	3,700,000	2,900,000	500,000	13,500,000		9,200,000	8,000,000
Accreted to date										29,000,000
Accretable yield	39,300,000									39,300,000
Realized foreign currency exchange loss										(2,800,000)		0	0
November 2011 [Member] | UK Loan Pool 1 [Member] | UNITED KINGDOM
Accounts, Notes, Loans and Financing Receivable [Line Items]
Investments in loan pool participations
Number of loans in portfolio													58
Equity method investment, ownership percentage	50.00%									50.00%
Joint venture, number of partners	1									1
Investment in loan pool, ownership percentage													25.00%
Purchase price													440,900,000
Purchase price funded by debt													323,400,000
Unpaid principal balance	44,700,000	[1]								44,700,000	[1]
Resolution of loans receivable										2,100,000,000
Loan resolutions, percentage of loan pool	98.00%									98.00%
Investing distributions from loan pool participation										66,200,000
Interest income from loan pool participations and notes receivable										23,200,000
Accreted to date										18,100,000
Accretable yield	19,300,000									19,300,000
Investments [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income from loan pool participations and notes receivable										13,500,000		9,200,000	8,000,000
Realized foreign currency exchange loss										$ (2,800,000)

[1] Estimated foreign exchange rate is £0.61 = $1 USD and €0.73 = $1 USD.