Preferred Stock (Tables)

12 Months Ended

Dec. 31, 2016

Scenario Immediately Prior to IPO [Member]

Summary of Preferred Stock (in thousands, except share data)

The following table summarizes information regarding our convertible preferred stock by class immediately prior to the IPO (in thousands, except share and per share data):  

			Per share		Aggregate
	Shares		liquidation		liquidation		Carrying
	Authorized	Outstanding	preference		preference		value
Series A	18,604,666	13,289,037	$	0.70	$	9,302	$	9,222
Series B	16,225,758	11,589,825		0.95		10,977		10,929
Series C	13,281,250	9,486,602		1.79		17,000		16,860
Series D	6,550,505	4,678,927		4.27		20,000		19,945
Series E	6,429,159	4,592,244		9.96		45,716		45,596
Series F	8,414,493	6,010,340		9.96		59,833		59,701
Total	69,505,831	49,646,975			$	162,828	$	162,253