Commitments to Acquire/Dispose of Real Estate (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014
Commitments to Acquire Real Estate
Properties Acquired-Total	0
Rental Units Acquired - Total	0
Purchase Price - Total	$ 3,300
Commitments to Dispose of Real Estate
Properties Disposed - Total	6
Rental Units Disposed-Total	2,005
Sales Price For Commitments To Dispose	360,752
Rental Properties Disposed of [Member]
Commitments to Dispose of Real Estate
Properties Disposed - Total	6
Rental Units Disposed-Total	2,005
Sales Price For Commitments To Dispose	306,350
Land [Member]
Commitments to Dispose of Real Estate
Sales Price For Commitments To Dispose	54,402
Land [Member]
Commitments to Acquire Real Estate
Purchase Price - Total	$ 3,300