ACQUISITION AND DISPOSITION OF REAL ESTATE AND DISCONTINUED OPERATIONS Discontinued Operations Results of Operations (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
ASSETS
Disposal Group, Including Discontinued Operation, Net Real Estate					$ 33,817
Disposal Group, Including Discontinued Operation, Rents Receivable, Net					830
Disposal Group, Including Discontinued Operation, Deferred Charges, Net of Amortization					1,483
Disposal Group, Including Discontinued Operation, Prepaid Expenses and Other Assets, Net					96
Assets of discontinued operations	0		0		36,226
LIABILITIES
Disposal Group Including Discontinued Operation Mortgage Notes Payable					20,760
Disposal Group, Including Discontinued Operation, Accounts Payable and Accrued Expenses					710
Disposal Group, Including Discontinued Operation, Other Liabilities					702
Liabilities of discontinued operations	0		0		22,172
STATEMENTS OF OPERATIONS
Total revenues	226	1,766	1,917	6,457
Total expenses	125	890	1,134	3,712
Operating income	101	876	783	2,745
Impairment of Real Estate	0	0	0	(6,925)
Gain on sale of property	5,917	0	8,585	32,498
Income from discontinued operations	6,018	876	9,368	28,318
(Income) from discontinued operations, attributable to noncontrolling interests	(4,702)	(634)	(7,604)	(707)
Income from discontinued operations, attributable to Common Shareholders	$ 1,316	$ 242	$ 1,764	$ 27,611