DERIVATIVES - Schedule of Derivatives - Linked Transactions (Footnote) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013
Non-Performing Loans [Member]
Derivative [Line Items]
Unpaid Principal Balance (UPB) of Underlying Mortgages	$ 2,900		$ 164,600
Face amount of real estate securities	2,931	[1]	164,598	[1]
Real Estate Securities [Member]
Derivative [Line Items]
Face amount of real estate securities	$ 186,694	[2]	$ 10,000	[2]

[1] Represents the UPB of the underlying loans of the non-performing loan pools within linked transactions.

[2] Represents the face amount of the real estate securities within linked transactions.