Capitalization	12 Months Ended
Dec. 31, 2013
Stockholders' Equity Note [Abstract]
Capitalization	CAPITALIZATION As of December 31, 2013, the Company’s authorized stock consists of 1,000,000,000 shares of common stock, par value of $0.0001 per share, and 50,000,000 shares of preferred stock, par value of $0.0001 per share. No shares of preferred stock were issued or outstanding at December 31, 2013 and 2012. Upon the completion of the Company’s IPO in March 2011, all of the then-outstanding shares of preferred stock were automatically converted into 28,809,031 shares of common stock on a one-for-one basis.

Capitalization

12 Months Ended

Dec. 31, 2013

Stockholders' Equity Note [Abstract]

CAPITALIZATION

As of December 31, 2013, the Company’s authorized stock consists of 1,000,000,000 shares of common stock, par value of $0.0001 per share, and 50,000,000 shares of preferred stock, par value of $0.0001 per share. No shares of preferred stock were issued or outstanding at December 31, 2013 and 2012.

Upon the completion of the Company’s IPO in March 2011, all of the then-outstanding shares of preferred stock were automatically converted into 28,809,031 shares of common stock on a one-for-one basis.