Real Estate and In-Place Lease Value (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014 JointVenture
Business Acquisition [Line Items]
Number of Joint Venture Investments Consolidated	6
Consoldiated Entity Ownership Percentage	50.00%
Retail Acquired in California [Member]
Business Acquisition [Line Items]
Square Foot of Retail Center Acquired through Foreclosure	133,000
Acquisition related gain	$ 3.7
Vacant Lot Acquired in California [Member]
Business Acquisition [Line Items]
Number of acre lot acquired by foreclosure	2.4
Maximum [Member] | Building and Building Improvements [Member]
Business Acquisition [Line Items]
Property, Plant and Equipment, Useful Life	40 years