VARIABLE INTEREST ENTITIES - FAIR VALUE OF FINANCIAL INSTRUMENTS (Assets and Liabilities, Quantitative Information) (Details) RSO (RSO [Member], Fair Value, Measurements, Nonrecurring [Member], USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Loans held for sale, fair value	$ 36,956	$ 21,916
Impaired loans, fair value	139,489	225
Total assets at fair value	176,445	22,141
Level 1 [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Loans held for sale, fair value	0	0
Impaired loans, fair value	0	0
Total assets at fair value	0	0
Level 2 [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Loans held for sale, fair value	36,956	6,850
Impaired loans, fair value	1,678	225
Total assets at fair value	38,634	7,075
Level 3 [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Loans held for sale, fair value	0	15,066
Impaired loans, fair value	137,811	0
Total assets at fair value	$ 137,811	$ 15,066