Notes Payable and Unsecured Credit Facilities (Tables)

6 Months Ended

Jun. 30, 2012

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments [Table Text Block]

The Company’s outstanding debt at June 30, 2012 and December 31, 2011 consists of the following (in thousands):

		2012	2011
Notes payable:
Fixed rate mortgage loans	$	448,037	439,880
Variable rate mortgage loans		12,534	12,665
Fixed rate unsecured loans		1,297,728	1,489,895
Total notes payable		1,758,299	1,942,440
Unsecured credit facilities		305,000	40,000
Total	$	2,063,299	1,982,440

Schedule of Maturities of Long-term Debt [Table Text Block]

As of June 30, 2012, scheduled principal payments and maturities on notes payable were as follows (in thousands):

Scheduled Principal Payments and Maturities by Year:		Scheduled Principal Payments	Mortgage Loan Maturities	Unsecured Maturities (1)		Total
2012	$	3,883	—	—		3,883
2013		7,595	16,333	—		23,928
2014		7,091	28,400	150,000		185,491
2015		5,618	46,485	505,000		557,103
2016		5,487	14,161	150,000		169,648
Beyond 5 Years		24,606	299,081	800,000		1,123,687
Unamortized debt (discounts) premiums, net		—	1,831	(2,272	)	(441	)
Total	$	54,280	406,291	1,602,728		2,063,299

⁽¹⁾ Includes unsecured public debt and unsecured credit facilities balances outstanding as of June 30, 2012.