CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
REVENUES
Rental income	$ 2,422,233	$ 2,736,578	$ 2,605,311
Fee and asset management	3,567	8,387	9,437
Total revenues	2,425,800	2,744,965	2,614,748
EXPENSES
Property and maintenance	406,823	479,160	473,098
Real estate taxes and insurance	317,387	339,802	325,401
Property management	82,015	86,206	85,065
General and administrative	57,840	64,664	50,679
Depreciation	705,649	765,895	758,861
Total expenses	1,569,714	1,735,727	1,693,104
Operating income	856,086	1,009,238	921,644
Interest and other income	65,773	7,372	4,462
Other expenses	(10,368)	(2,942)	(9,073)
Interest:
Expense incurred, net	(482,246)	(444,487)	(457,460)
Amortization of deferred financing costs	(12,633)	(10,801)	(11,088)
Income before income and other taxes, income (loss) from investments in unconsolidated entities, net gain (loss) on sales of real estate properties and land parcels and discontinued operations	416,612	558,380	448,485
Income and other tax (expense) benefit	(1,613)	(917)	(1,394)
Income (loss) from investments in unconsolidated entities	4,801	15,025	(7,952)
Net gain on sales of real estate properties	4,044,055	335,134	212,685
Net gain (loss) on sales of land parcels	15,731	(1)	5,277
Income from continuing operations	4,479,586	907,621	657,101
Discontinued operations, net	518	397	1,582
Net income	4,480,104	908,018	658,683
Net (income) attributable to Noncontrolling Interests:
Operating Partnership	(171,511)	(34,241)	(24,831)
Partially Owned Properties	(16,430)	(3,657)	(2,544)
Net income attributable to controlling interests	4,292,163	870,120	631,308
Preferred distributions	(3,091)	(3,357)	(4,145)
Premium on redemption of Preferred Shares	0	(3,486)	0
Net income available to Common Shares	$ 4,289,072	$ 863,277	$ 627,163
Earnings per share – basic:
Income from continuing operations available to Common Shares	$ 11.75	$ 2.37	$ 1.73
Net income available to Common Shares	$ 11.75	$ 2.37	$ 1.74
Weighted average Common Shares outstanding	365,002	363,498	361,181
Earnings per share – diluted:
Income from continuing operations available to Common Shares	$ 11.68	$ 2.36	$ 1.72
Net income available to Common Shares	$ 11.68	$ 2.36	$ 1.73
Weighted average Common Shares outstanding	381,992	380,620	377,735
Distributions declared per Common Share outstanding	$ 13.015	$ 2.210	$ 2.000