Redeemable Convertible Preferred Stock and Stockholders' Equity (Deficit) (Tables)

12 Months Ended

Dec. 31, 2016

Statement Of Stockholders Equity [Abstract]

Schedule of Preferred Stock Warrants Outstanding Exercise Price

The following table presents the preferred stock warrants outstanding, all with exercise prices of $9.318 per share, as of December 31, 2015, all such balances as of December 31, 2016 were $0:

	ISSUANCE			FAIR VALUE AT DECEMBER 31
	DATE	SHARES		2015
				(in thousands)
Series 2 preferred stock (1)	June 2, 2010		2,004	$	24
Series 2 preferred stock (1)	February 1, 2011		1,458		18
Series 2 preferred stock (1)	July 13, 2012		41,666		548
Series 2 preferred stock (2)	June 30, 2010		218,523		2,275
Total Series 2 redeemable convertible preferred stock			263,651	$	2,865

⁽¹⁾ These warrants exercised on a net exercise basis in July 2016.

⁽²⁾ These warrants either were exercised prior to our initial public offering or automatically exercised on a net exercise basis as the per share price of common stock sold to the public in our initial public offering exceeded the exercise price of the warrants.