Commitments to Acquire/Dispose of Real Estate (Tables)

3 Months Ended

Mar. 31, 2013

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

Real Estate to be Acquired Table Text Block

	Properties	Apartment Units	Purchase Price
Land Parcel (one)	—	—	$	12,500
Total	—	—	$	12,500

Disposed Properties Table Text Block

	Properties	Apartment Units	Sales Price
Rental Properties	7	1,566	$	191,715
Land Parcels (two)	—	—	22,900
Other (1)	—	—	32,500
Total	7	1,566	$	247,115