Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data	Jun. 30, 2011	Dec. 31, 2010
Real estate owned:
Real estate held for sale, accumulated depreciation	$ 0	$ 71,708
Stockholders' equity
Preferred stock, par value	$ 0	$ 0
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	196,660,518	182,496,330
Common stock, shares outstanding	196,660,518	182,496,330
Series E Cumulative Convertible Preferred Stock
Stockholders' 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
Stockholders' equity
Cumulative Convertible, shares issued	3,264,362	3,405,562
Cumulative Convertible, shares outstanding	3,264,362	3,405,562