ACQUISITION AND DISPOSITION OF REAL ESTATE AND DISCONTINUED OPERATIONS Discontinued Operations Results of Operations (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
ASSETS
Net real estate	$ 19,468		$ 19,400
Rents receivable, net	875		917
Deferred charges, net	360		612
Prepaid expenses and other assets	311		1,132
Total assets of discontinued operations	21,014		22,061
LIABILITIES
Mortgage notes payable	9,178		9,208
Accounts payable and accrued expenses	2,124		3,125
Other liabilities	609		765
Total liabilities of discontinued operations	11,911		13,098
STATEMENTS OF OPERATIONS
Total revenues	1,170	9,713
Total expenses	773	7,386
Income from discontinued operations	397	2,327
(Income) from discontinued operations, attributable to noncontrolling interests	(348)	(1,805)
Income from discontinued operations, attributable to Common Shareholders	$ 49	$ 522