Condensed Consolidated Balance Sheets (Parenthetical) (Unaudited) (USD $)	Jun. 30, 2011	Dec. 31, 2010
Condensed Consolidated Balance Sheets
Preferred Stock, shares authorized (in shares)	20,000,000	20,000,000
Preferred Stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.00	$ 0.00
Common stock, shares authorized (in shares)	500,000,000	500,000,000
Common stock, shares issued (in shares)	198,422,574	195,359,109
Common stock, shares outstanding (in shares)	198,422,574	195,359,109