Commitments to Acquire/Dispose of Real Estate (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013
Commitments to Acquire Real Estate
Properties Acquired-Total	0
Rental Units Acquired - Total	0
Purchase Price - Total	$ 12,500
Commitments to Dispose of Real Estate
Properties Disposed - Total	0
Rental Units Disposed-Total	0
Sales Price For Commitments To Dispose	27,000
Land Parcel [Member]
Commitments to Acquire Real Estate
Purchase Price - Total	12,500
Land Parcels Contracted to be Acquired	1
Land Parcel [Member]
Commitments to Dispose of Real Estate
Sales Price For Commitments To Dispose	$ 27,000
Land Parcels Contracted to be Disposed	1