Commitments to Acquire/Dispose of Real Estate (Tables)

12 Months Ended

Dec. 31, 2010

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

Real estate to be acquired

	Properties		Apartment Units		Purchase Price
Rental Properties		2		683	$	125,250
Total		2		683	$	125,250

Real estate to be disposed of

	Properties		Apartment Units		Sales Price
Rental Properties		15		4,152	$	378,650
Total		15		4,152	$	378,650