Basis of Presentation Percentage of Ownership (Details) (Consolidated Properties [Member])	Sep. 30, 2013 properties
Number of Real Estate Properties	9
Limited Partner [Member]
Number of Real Estate Properties	3

The number of real estate properties owned as of the balance sheet date.

No definition available.

Name:	us-gaap_NumberOfRealEstateProperties
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant