Convertible Preferred Stock (Tables)

12 Months Ended

Dec. 31, 2018

Temporary Equity Disclosure [Abstract]

Schedule of Outstanding Convertible Preferred Stock

As of December 31, 2017, the outstanding convertible preferred stock was as follows (in thousands, except share amounts):

	Shares Authorized		Shares Issued and Outstanding		Liquidation Value		Carrying Value
Series A		49,725,000		12,556,791	$	49,725	$	49,637
Series B		34,653,462		8,750,852		70,000		69,817
Series C		36,580,405		9,151,931		107,000		106,742
Total		120,958,867		30,459,574	$	226,725	$	226,196