XML 24 R50.htm IDEA: XBRL DOCUMENT

Intangible Assets and Liabilities (Narratives) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Lease intangibles:
Amortization of Intangible Assets	$ 7.3	$ 5.5	$ 20.5	$ (12.4)
Maximum
Lease intangibles:
Finite lived intangibles assets useful life			37 years 0 months 0 days
Minimum
Lease intangibles:
Finite lived intangibles assets useful life			1 year 0 months 0 days

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ References+ Details