VARIABLE INTEREST ENTITIES - FAIR VALUE OF FINANCIAL INSTRUMENTS (Liabilities Measured on Recurring Basis) (Details) RSO (RSO [Member], Level 3 [Member], Derivative Financial Instruments, Liabilities [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
RSO [Member] | Level 3 [Member] | Derivative Financial Instruments, Liabilities [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 10,191	$ 14,077
Unrealized losses – included in accumulated other comprehensive income	(1,715)	(3,886)
Ending balance	$ 8,476	$ 10,191