Consolidated Balance Sheets (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Preferred stock, aggregate shares authorized	5,000,000	5,000,000
Preferred stock, par value (in Dollars per share)	$ 0.25
Common stock, par value (in Dollars per share)	$ 0.25	$ 0.25
Common stock, shares authorized	500,000,000	400,000,000
Common stock, shares issued	285,289,294	258,485,666
Common stock, shares outstanding	285,289,294	258,485,666
Treasury stock, common shares	392,645	335,957
Series B Preferred Stock [Member]
Preferred stock, par value (in Dollars per share)	$ 0.25	$ 0.25
Preferred stock, shares issued	157,816	157,816
Preferred stock, shares outstanding	157,816	157,816
Preferred stock, liquidation preference (in Dollars)	$ 7,891	$ 8,581
Mandatory Convertible Preferred Stock [Member]
Preferred stock, par value (in Dollars per share)	$ 0.25	$ 0.25
Preferred stock, shares issued	0	2,012,500
Preferred stock, shares outstanding	0	2,012,500
Preferred stock, liquidation preference (in Dollars)	$ 0	$ 201,250