Debt (Tables)

12 Months Ended

Dec. 31, 2016

Debt Disclosure [Abstract]

Schedule of Debt

(Amounts in thousands)			Weighted Average
			Interest Rate at			Balance at December 31,
			December 31, 2016			2016		2015
Mortgages Payable:
	Fixed rate			3.84%	$	6,099,873	$	6,356,634
	Variable rate			2.49%		3,274,424		3,258,204
		Total		3.37%		9,374,297		9,614,838
	Deferred financing costs, net and other					(96,034)		(101,125)
		Total, net			$	9,278,263	$	9,513,713
Unsecured Debt:
	Senior unsecured notes			3.68%	$	850,000	$	850,000
	Deferred financing costs, net and other					(4,423)		(5,841)
		Senior unsecured notes, net				845,577		844,159
	Unsecured term loan			1.88%		375,000		187,500
	Deferred financing costs, net and other					(2,785)		(4,362)
		Unsecured term loan, net				372,215		183,138
	Unsecured revolving credit facilities			1.68%		115,630		550,000
		Total, net			$	1,333,422	$	1,577,297

Schedule of Maturities of Long-Term Debt

(Amounts in thousands)				Senior Unsecured
				Debt and Unsecured
				Revolving Credit
		Mortgages Payable		Facilities
Year Ending December 31,
2017	$	156,702	$	-
2018		1,389,341		490,630
2019		399,661		450,000
2020		1,882,443		-
2021		3,173,705		-
Thereafter		2,372,445		400,000