Convertible Preferred Stock (Tables)

12 Months Ended

Dec. 31, 2015

Equity [Abstract]

Schedule of Shares of Convertible Preferred Stock and Common Stock

The changes in the shares of convertible preferred stock and common stock during the years ended December 31, 2015, 2014 and 2013 were as follows:

	Series A Convertible Preferred Stock			Extinguished Series B-1 Convertible Preferred Stock			Extinguished Series C Convertible Preferred Stock			Extinguished Series D-1 Convertible Preferred Stock			Extinguished Series D-2 Convertible Preferred Stock			New Series B Convertible Preferred Stock			New Series C Convertible Preferred Stock			Total Convertible Preferred Stock			Common Stock
Balance at December 31, 2012		163,462			6,321,238			9,108,533			1,155,172			—			—			—			16,748,405			730,203
Issuance of Series D-1 convertible     preferred stock		—			—			—			983,558			—			—			—			983,558			—
Issuance of Series D-2 convertible     preferred stock		—			—			—			—			3,013,797			—			—			3,013,797			—
Conversion of Series C convertible     preferred stock and related dividends     dividends into common stock and     deemed capital contribution		—			—			(1,470,485	)		—			—			—			—			(1,470,485	)		147,051
Conversion of accrued dividends     into Series D-2 convertible     preferred stock		—			—			—			—			3,196,417			—			—			3,196,417			—
Extinguishment of Series B-1, Series C,     Series D-1 and Series D-2 convertible     preferred stock		—			(6,321,238	)		(7,638,048	)		(2,138,730	)		(6,210,214	)		—			—			(22,308,230	)		—
Exchange of new Series B convertible    preferred stock and deemed dividend		—			—			—			—			—			22,308,230			—			22,308,230			—
Issuance of new Series C convertible     preferred stock		—			—			—			—			—			—			2,564,638			2,564,638			—
Issuance of common stock from     option exercise		—			—			—			—			—			—			—			—			1,463
Balance at December 31, 2013		163,462			—			—			—			—			22,308,230			2,564,638			25,036,330			878,717
Repurchase of Series A convertible     preferred stock and deemed     capital contribution		(1,353	)		—			—			—			—			—			—			(1,353	)		—
Issuance of  Series C convertible     preferred stock		—			—			—			—			—			—			880,546			880,546			—
Conversion of convertible     promissory notes into     Series C convertible     preferred stock		—			—			—			—			—			—			1,739,405			1,739,405			—
Issuance of common stock from     option exercise		—			—			—			—			—			—			—			—			28,320
Balance at December 31, 2014		162,109			—			—			—			—			22,308,230			5,184,589			27,654,928			907,037
Issuance of  Series C convertible     preferred stock		—			—			—			—			—			—			2,727,059			2,727,059			—
Conversion of convertible preferred     stock into common stock in     connection with the merger		(162,109	)		—			—			—			—			(22,308,230	)		(7,911,648	)		(30,381,987	)		30,381,987
Issuance of common stock upon     private placement		—			—			—			—			—			—			—			—			5,884,504
Issuance of common stock to     Mirax		—			—			—			—			—			—			—			—			1,000,005
Issuance of common stock from     option exercise		—			—			—			—			—			—			—			—			31,427
Balance at December 31, 2015		—			—			—			—			—			—			—			—			38,204,960

Components of Convertible Preferred Stock

Convertible preferred stock as of December 31, 2015 and 2014 consisted of the following (in thousands, except share data):

	December 31, 2015
	Shares Authorized		Shares Issued and Outstanding		Aggregate Liquidation Preference		Net Carrying Value
Series A		398,500		—	$	—	$	—
Series B		60,500,000		—		—		—
Series C		19,812,497		—		—		—
Total		80,710,997	$	—	$	—	$	—

	December 31, 2014
	Shares Authorized		Shares Issued and Outstanding		Aggregate Liquidation Preference		Net Carrying Value
Series A		398,500		162,109	$	3,004	$	3,003
Series B		60,500,000		22,308,230		113,405		112,080
Series C		13,562,497		5,184,589		30,323		30,027
Total		74,460,997		27,654,928	$	146,732	$	145,110