SUBSEQUENT EVENTS (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	9 Months Ended	0 Months Ended	1 Months Ended
	Sep. 30, 2013	Nov. 04, 2013 Subsequent Event	Oct. 31, 2013 Subsequent Event 1151 Third Avenue The Bronx, New York Fund IV	Oct. 31, 2013 Subsequent Event Lake Montclair Dumfries, Virginia Fund IV
Subsequent Event [Line Items]
Business Acquisition, Cost of Acquired Entity, Purchase Price			$ 18.0	$ 19.3
Common Stock, Dividends, Per Share, Declared for Stockholders of Record, December 31, 2013	$ 0.63	$ 0.23