Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $)	Sep. 30, 2011	Dec. 31, 2010
Stockholders' equity (deficit):
Preferred stock, par value	$ 0.0001	$ 0.0001
Preferred Stock, shares authorized	2,000,000	0
Preferred Stock, shares issued
Preferred Stock, shares outstanding
Class A Common Stock
Stockholders' equity (deficit):
Common stock, par value	$ 0.0001	$ 0.0001
Common Stock, shares authorized	250,000,000	112,100,000
Common Stock, shares issued	40,194,065	60,000
Common Stock, shares outstanding	40,194,065	60,000
Class B Common Stock
Stockholders' equity (deficit):
Common stock, par value	$ 0.0001	$ 0.0001
Common Stock, shares authorized	70,800,000	72,000,000
Common Stock, shares issued	61,848,696	15,820,000
Common Stock, shares outstanding	61,848,696	15,820,000
Series A Convertible Preferred Stock
Convertible Preferred Stock
Convertible preferred stock, par value	$ 0.0001	$ 0.0001
Convertible preferred stock, shares authorized	0	24,000,000
Convertible preferred stock, shares issued	0	24,000,000
Convertible preferred stock, shares outstanding	0	24,000,000
Series A-1 Convertible Preferred Stock
Convertible Preferred Stock
Convertible preferred stock, par value	$ 0.0001	$ 0.0001
Convertible preferred stock, shares authorized	0	25,600,000
Convertible preferred stock, shares issued	0	20,571,576
Convertible preferred stock, shares outstanding	0	20,571,576
Series B Convertible Preferred Stock
Convertible Preferred Stock
Convertible preferred stock, par value	$ 0.0001	$ 0.0001
Convertible preferred stock, shares authorized	0	25,000,000
Convertible preferred stock, shares issued	0	24,479,802
Convertible preferred stock, shares outstanding	0	24,479,802