Notes Payable and Unsecured Credit Facilities (Tables)

3 Months Ended

Mar. 31, 2012

Debt Disclosure [Abstract]

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

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

		2012	2011
Notes payable:
Fixed rate mortgage loans	$	438,120	439,880
Variable rate mortgage loans		12,614	12,665
Fixed rate unsecured loans		1,297,624	1,489,895
Total notes payable		1,748,358	1,942,440
Unsecured credit facilities		275,000	40,000
Total	$	2,023,358	1,982,440

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

As of March 31, 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	$	5,306	—	—		5,306
2013		6,995	16,332	—		23,327
2014		6,481	28,483	150,000		184,964
2015		5,170	46,313	475,000		526,483
2016		4,857	14,161	150,000		169,018
Beyond 5 Years		24,490	288,047	800,000		1,112,537
Unamortized debt (discounts) premiums, net		—	4,099	(2,376	)	1,723
Total	$	53,299	397,435	1,572,624		2,023,358

⁽¹⁾ Includes unsecured public debt and unsecured credit facilities balances outstanding as of March 31, 2012.