Commitments to Acquire/Dispose of Real Estate (Tables)

3 Months Ended

Mar. 31, 2012

Commitments to Acquire Dispose of Real Estate (Tables) [Abstract]

Real Estate to be Acquired Table Text Block

	Properties	Apartment Units	Purchase Price
Land Parcels (four)	—	—	$	73,500
Total	—	—	$	73,500

Disposed Properties Table Text Block

	Properties	Apartment Units	Sales Price
Rental Properties	3	699	$	54,100
Total	3	699	$	54,100