INVESTMENTS IN REAL ESTATE SECURITIES - Summary of Real Estate Securities in an Unrealized Loss Position - Associated Intent to Sell (Footnote) (Details) (USD $)	3 Months Ended
Mar. 31, 2015
Investments, Debt and Equity Securities [Abstract]
Unrealized losses reflected in other comprehensive income	$ 0us-gaap_UnrealizedLossOnSecurities

The increase (decrease), resulting in a loss, in the difference between the fair value and the carrying value, or in the comparative fair values, of securities held at each balance sheet date, that was included in earnings for the period.

No definition available.

Name:	us-gaap_UnrealizedLossOnSecurities
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration