Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Per Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
REVENUES:
Rental and other property revenues	$ 273,384	$ 266,728	$ 545,176	$ 533,332
Asset management and tax credit revenues	7,651	9,796	16,887	14,497
Total revenues	281,035	276,524	562,063	547,829
OPERATING EXPENSES:
Property operating expenses	117,379	123,126	240,908	250,266
Investment management expenses	2,187	5,141	5,219	8,370
Depreciation and amortization	94,084	102,809	193,117	206,092
General and administrative expenses	12,372	15,184	23,498	26,919
Other expenses (income), net	5,222	(4,485)	9,156	(2,148)
Total operating expenses	231,244	241,775	471,898	489,499
Operating income	49,791	34,749	90,165	58,330
Interest income	2,478	2,123	4,938	5,506
(Provision for) recovery of losses on notes receivable, net	(36)	148	(53)	(278)
Interest expense	(96,716)	(76,203)	(171,805)	(152,579)
Equity in (losses) earnings of unconsolidated real estate partnerships	(1,798)	(5,295)	(3,446)	3,853
Gain on dispositions of unconsolidated real estate and other	808	3,041	2,021	4,485
Loss before income taxes and discontinued operations	(45,473)	(41,437)	(78,180)	(80,683)
Income tax benefit	2,257	3,385	4,765	7,151
Loss from continuing operations	(43,216)	(38,052)	(73,415)	(73,532)
Income from discontinued operations, net	16,469	28,096	19,603	47,028
Net loss	(26,747)	(9,956)	(53,812)	(26,504)
Net loss (income) attributable to noncontrolling interests in consolidated real estate partnerships	2,771	2,716	10,076	(9,418)
Net loss attributable to the Partnership	(23,976)	(7,240)	(43,736)	(35,922)
Net income attributable to the Partnership's preferred unitholders	(11,343)	(11,811)	(25,470)	(26,426)
Net income attributable to participating securities	(54)	(42)	(111)
Net loss attributable to the Partnership's common unitholders	$ (35,373)	$ (19,093)	$ (69,317)	$ (62,348)
Earnings (loss) per common unit - basic and diluted (Note 6):
Loss from continuing operations attributable to the Partnership's common unitholders	$ (0.35)	$ (0.33)	$ (0.66)	$ (0.75)
Income from discontinued operations attributable to the Partnership's common unitholders	$ 0.07	$ 0.18	$ 0.11	$ 0.25
Net loss attributable to the Partnership's common unitholders	$ (0.28)	$ (0.15)	$ (0.55)	$ (0.50)
Weighted average common units outstanding, basic and diluted	127,577	124,663	126,675	124,521
Distributions declared per common unit	$ 0.12	$ 0.10	$ 0.24	$ 0.10