Redeemable Convertible Preferred Stock

9 Months Ended

Sep. 30, 2015

Equity [Abstract]

Redeemable Convertible Preferred Stock

Redeemable Convertible Preferred Stock

The following table presents a summary of activity for the preferred stock issued and outstanding for the nine months endedSeptember 30, 2014 (in thousands):

	Series A		Series B		Series C		Series C-1		Series D		Series E		Total Amount
Balance, January 1, 2014	$	2,559	$	22,918	$	24,749	$	5,401	$	62,716	$	—	$	118,343
Issuance of preferred stock	—		—		—		—		—		76,985		76,985
Exercise of preferred stock warrants	—		5,982		—		7,225		—		—		13,207
Accretion of dividends on preferred stock	98		960		1,226		306		3,610		3,628		9,828
Balance, September 30, 2014	$	2,657	$	29,860	$	25,975	$	12,932	$	66,326	$	80,613	$	218,363

All redeemable convertible preferred stock automatically converted into shares of common stock upon close of our initial public offering in December 2014. As of September 30, 2015 we had no redeemable convertible preferred stock outstanding.