Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Revenues:
Rentals, net	$ 128,254	$ 127,974	$ 375,222	$ 380,398
Other	2,533	2,547	7,968	7,906
Total	130,787	130,521	383,190	388,304
Expenses:
Depreciation and amortization	36,327	36,694	108,929	113,948
Operating	24,291	23,454	69,076	71,989
Real estate taxes, net	15,770	15,412	45,895	46,419
Impairment loss	0	0	153	0
General and administrative	6,188	6,146	20,021	17,879
Total	82,576	81,706	244,074	250,235
Operating Income	48,211	48,815	139,116	138,069
Interest Expense, net	(20,607)	(24,373)	(67,357)	(73,263)
Interest and Other (Expense) Income, net	(888)	96	2,252	2,893
Gain on Sale and Acquisition of Real Estate Joint Venture and Partnership Interests	0	0	879	1,718
Equity in Earnings of Real Estate Joint Ventures and Partnerships, net	5,096	7,881	13,680	16,331
Benefit (Provision) for Income Taxes	144	284	(291)	1,885
Income from Continuing Operations	31,956	32,703	88,279	87,633
Operating Income from Discontinued Operations	0	0	0	342
Gain on Sale of Property from Discontinued Operations	0	0	0	44,582
Income from Discontinued Operations	0	0	0	44,924
Gain on Sale of Property	13,232	69,496	43,917	71,407
Net Income	45,188	102,199	132,196	203,964
Less: Net Income Attributable to Noncontrolling Interests	(1,787)	(1,870)	(5,119)	(4,936)
Net Income Adjusted for Noncontrolling Interests	43,401	100,329	127,077	199,028
Dividends on Preferred Shares	0	(2,710)	(3,830)	(8,130)
Redemption Costs of Preferred Shares	0	0	(9,687)	0
Net Income Attributable to Common Shareholders	$ 43,401	$ 97,619	$ 113,560	$ 190,898
Earnings Per Common Share - Basic:
Income from continuing operations attributable to common shareholders (dollars per share)	$ 0.35	$ 0.80	$ 0.92	$ 1.20
Income from discontinued operations (dollars per share)	0.00	0.00	0.00	0.37
Net income attributable to common shareholders (dollars per share)	0.35	0.80	0.92	1.57
Earnings Per Common Share - Diluted:
Income from continuing operations attributable to common shareholders (dollars per share)	0.35	0.79	0.91	1.19
Income from discontinued operations (dollars per share)	0.00	0.00	0.00	0.36
Net income attributable to common shareholders (dollars per share)	$ 0.35	$ 0.79	$ 0.91	$ 1.55