Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data	Sep. 30, 2011	Dec. 31, 2010
Real estate owned:
Real estate under development, accumulated depreciation	$ 115	$ 0
Real estate held for sale, accumulated depreciation	$ 9,835	$ 87,479
Equity
Preferred stock, par value
Preferred stock, shares authorized	50,000,000	50,000,000
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	250,000,000	250,000,000
Common stock, shares issued	219,038,779	182,496,330
Common stock, shares outstanding	219,038,779	182,496,330
Series E Cumulative Convertible Preferred Stock
Equity
Cumulative Convertible, shares issued	2,803,812	2,803,812
Cumulative Convertible, shares outstanding	2,803,812	2,803,812
Series G Cumulative Redeemable Preferred Stock
Equity
Cumulative Convertible, shares issued	3,264,362	3,405,562
Cumulative Convertible, shares outstanding	3,264,362	3,405,562