Deferred Financing and Leasing Costs (Tables)

12 Months Ended

Dec. 31, 2012

Deferred Financing and Leasing Costs [Abstract]

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block]

	December 31,
	2012			2011
Deferred leasing costs	$	205,300		$	185,952
Deferred financing costs	39,942			40,885
In-place lease value and related intangible asset	32,709			26,334
	277,951			253,171
Accumulated amortization	(136,706		)	(123,557		)
Total	$	141,245		$	129,614