FINANCING RECEIVABLES (Allowance for Credit Losses) (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	$ 47,293,000	$ 67,152,000
Activity in the allowance for credit losses of financing receivables [Roll Forward]
Allowance for losses at beginning of period	36,243,000	32,628,000
Provision for credit losses	3,058,000	4,265,000	20,148,000
Charge-offs	(22,405,000)	(712,000)
Recoveries	94,000	62,000
Allowance for losses at end of period	16,990,000	36,243,000	32,628,000
Ending balance, individually evaluated for impairment	16,990,000	36,229,000
Ending balance, collectively evaluated for impairment	0	14,000
Allowance for losses at end of period	16,990,000	36,243,000	32,628,000
Collectively evaluated for impairment	88,000	91,000
Financing Receivable Recorded Investment Total	47,381,000	67,243,000
Receivables from Managed Entities [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	47,293,000	67,152,000
Activity in the allowance for credit losses of financing receivables [Roll Forward]
Allowance for losses at beginning of period	36,229,000	32,560,000
Provision for credit losses	3,123,000	4,324,000
Charge-offs	(22,394,000)	(675,000)
Recoveries	32,000	20,000
Allowance for losses at end of period	16,990,000	36,229,000
Ending balance, individually evaluated for impairment	16,990,000	36,229,000
Ending balance, collectively evaluated for impairment	0	0
Allowance for losses at end of period	16,990,000	36,229,000
Collectively evaluated for impairment	0	0
Financing Receivable Recorded Investment Total	47,293,000	67,152,000
Leases and Loans [Member]
Activity in the allowance for credit losses of financing receivables [Roll Forward]
Allowance for losses at beginning of period	0
Provision for credit losses	(62,000)	(42,000)
Charge-offs	0	0
Recoveries	62,000	42,000
Allowance for losses at end of period	0	0
Ending balance, individually evaluated for impairment	0	0
Ending balance, collectively evaluated for impairment	0	0
Allowance for losses at end of period	0	0
Rent Receivables [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	0	0
Activity in the allowance for credit losses of financing receivables [Roll Forward]
Allowance for losses at beginning of period	14,000	68,000
Provision for credit losses	(3,000)	(17,000)
Charge-offs	(11,000)	(37,000)
Recoveries	0	0
Allowance for losses at end of period	0	14,000
Ending balance, individually evaluated for impairment	0	0
Ending balance, collectively evaluated for impairment	0	14,000
Allowance for losses at end of period	0	14,000
Collectively evaluated for impairment	88,000	91,000
Financing Receivable Recorded Investment Total	$ 88,000	$ 91,000