Consolidated Statements of Convertible Preferred Stock and Stockholders' Equity (Deficit) (Temporary Equity) - 12 months ended Dec. 31, 2015 - USD ($) shares in Thousands, $ in Thousands	Convertible preferred stock	Total
Convertible preferred stock balance at Dec. 31, 2014	$ 240,612
Convertible preferred stock balance (in shares) at Dec. 31, 2014	31,397
Issuance of convertible preferred stock (in shares)
Issuance costs of Series F Preferred Stock	$ (27)
Conversion of all Preferred Stock into Common Stock upon the completion of the initial public offering	$ (240,585)	$ 240,585
Conversion of all Preferred Stock into Common Stock upon the completion of the initial public offering (in shares)	(31,397)
Convertible preferred stock balance at Dec. 31, 2015
Convertible preferred stock balance (in shares) at Dec. 31, 2015