Condensed Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020		Jun. 30, 2019
Revenues
Revenues from rental properties, net		$ 235,961	$ 280,710	$ 521,965	[1]	$ 571,344	[1]
Management and other fee income		2,955	4,163	6,695		8,539
Total revenues		238,916	284,873	528,660		579,883
Operating expenses
Rent		(2,827)	(2,924)	(5,662)		(5,616)
Real estate taxes		(38,678)	(37,005)	(78,330)		(76,352)
Operating and maintenance		(38,940)	(43,217)	(81,348)		(84,113)
General and administrative		(22,504)	(22,633)	(43,521)		(48,464)
Impairment charges		138	17,451	3,112		21,626
Depreciation and amortization		(73,559)	(69,005)	(142,956)		(140,566)
Total operating expenses		(176,646)	(192,235)	(354,929)		(376,737)
Gain on sale of properties		1,850	14,762	5,697		38,357
Operating income		64,120	107,400	179,428		241,503
Other income/(expense)
Other income, net		49	1,867	1,293		2,986
Gain on marketable securities, net		526,243	71	521,577		1,574
Gain on sale of cost method investment		190,832	0	190,832		0
Interest expense		(48,015)	(44,097)	(94,075)		(88,492)
Income before income taxes, net, equity in income of joint ventures, net, and equity in income from other real estate investments, net		733,229	65,241	799,055		157,571
(Provision)/benefit for income taxes, net		(51)	344	(94)		(286)
Net income		748,118	101,387	838,507		218,065
Net income attributable to noncontrolling interests		(225)	(360)	(514)		(869)
Net income attributable to the Company		747,893	101,027	837,993		217,196
Preferred dividends		(6,354)	(14,534)	(12,708)		(29,068)
Net income available to the Company's common shareholders		$ 741,539	$ 86,493	$ 825,285		$ 188,128
Per common share:
-Basic (in dollars per share)		$ 1.71	$ 0.20	$ 1.91		$ 0.45
-Diluted (in dollars per share)		$ 1.71	$ 0.20	$ 1.90		$ 0.44
Weighted average shares:
-Basic (in shares)		429,967	419,697	429,851		419,581
-Diluted (in shares)	[2]	431,170	420,646	431,527		420,798
Joint Ventures [Member]
Other income/(expense)
Equity in income		$ 10,158	$ 22,533	$ 23,806		$ 41,287
Other Real Estate Investments [Member]
Other income/(expense)
Equity in income		$ 4,782	$ 13,269	$ 15,740		$ 19,493

[1] During the six months ended June 30, 2020, the Company recorded a $50.5 million adjustment associated with potentially uncollectible revenues and disputed amounts, which includes $11.5 million for straight-line rent receivables, primarily attributable to the COVID-19 pandemic.

[2] The effect of the assumed conversion of certain convertible units had an anti-dilutive effect upon the calculation of Net income available to the Company’s common shareholders per share. Accordingly, the impact of such conversions has not been included in the determination of diluted earnings per share calculations. Additionally, there were 1.2 million and 1.3 million stock options that were not dilutive as of June 30, 2020 and 2019, respectively, and 2.5 million shares of restricted stock that were not dilutive for the three months ended June 30, 2020.