Consolidated Balance Sheets (Parenthetical) (USD $)	Sep. 30, 2012	Dec. 31, 2011
Consolidated Balance Sheets [Abstract]
Preferred Stock, Par value	$ 0.01	$ 0.01
Preferred Stock, Shares authorized	3,000,000	3,000,000
Preferred Stock, Shares outstanding	0	0
Common Stock, Par value	$ 0.01	$ 0.01
Common Stock, Shares authorized	150,000,000	150,000,000
Common Stock, Shares issued	109,734,216	103,545,637
Common Stock, Shares outstanding	109,734,216	103,545,637