Preferred Stock and Stockholders' Equity - Preferred Stock and Common Stock Narrative (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Class of Stock [Line Items]
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, par value (in usd per share)	$ 0.001	$ 0.001
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, shares authorized	200,000,000	200,000,000
Common stock, par value (in usd per share)	$ 0.001	$ 0.001