Debt (Tables)

3 Months Ended

Mar. 31, 2015

Debt Disclosure [Abstract]

Schedule of Debt

		Interest Rate at		Balance at
(Amounts in thousands)		March 31, 2015		March 31, 2015		December 31, 2014
Mortgages Payable:
	Fixed rate		4.46%	$	6,553,924	$	6,499,396
	Variable rate		2.21%		1,762,869		1,763,769
			3.99%	$	8,316,793	$	8,263,165
Unsecured Debt:
	Senior unsecured notes		3.68%	$	847,332	$	1,347,159
	Revolving credit facility debt		1.23%		400,000		-
			3.39%	$	1,247,332	$	1,347,159