Real Estate Assets Real Estate Assets (Tables)

12 Months Ended

Dec. 31, 2011

Real Estate [Abstract]

Schedule of Purchase Price Allocation [Table Text Block]

The following table sets forth a summary of the acquisition purchase price consideration for each major class of assets acquired and liabilities assumed in the acquisitions discussed above:

	Total Purchase Price Consideration
Real estate assets	$	241,602
Acquisition-related intangible assets (in deferred financing and leasing costs)	39,721
Furniture, fixtures and equipment (in prepaid expenses and other assets)	1,101
Acquisition-related intangible liabilities (in accounts payable, accrued expenses and other liabilities)	(15,627		)
Total consideration	$	266,797

Business Acquisition, Pro Forma Information [Table Text Block]

The following tables set forth our rental and other revenues and net income, adjusted for interest expense and depreciation and amortization related to purchase price allocation, assuming the acquisitions discussed above both occurred as of the beginning of each annual reporting period:

	Year Ended December 31,
	2011		2010		2009
Proforma rental and other revenues	$	524,480	$	511,861	$	505,840
Proforma net income	$	45,674	$	65,409	$	57,471
Proforma earnings per share - basic	$	0.50	$	0.77	$	0.70
Proforma earnings per share - diluted	$	0.50	$	0.77	$	0.70