Equity and Noncontrolling Interest Transactions (Tables)

12 Months Ended

Dec. 31, 2010

Equity [Abstract]

Cumulative preferred securities outstanding

As of December 31, 2011, the Company, has the following cumulative preferred securities outstanding:

			Liquidation
Description	Issue Date		Preference
7.125% Series H	April 2011	2,950,000 shares	$	73,750
4.875% Series G	July 2006	178,249 shares	$	4,456