Our Business And Our Recent History (Narrative) (Details)	3 Months Ended
	Mar. 31, 2013 item state
Real Estate Properties [Line Items]
Company's history	29 years
Number of top population and job growth markets	5
Number of states in which retail properties acquired historically	19
Real Estate Funds [Member]
Real Estate Properties [Line Items]
Number of real estate properties	18
Wholly Owned Properties [Member]
Real Estate Properties [Line Items]
Number of real estate properties	31
Square footage of GLA	1,200,000
Number of real estate funds	8