Convertible Preferred Stock and Redeemable Convertible Preferred Stock (Tables)

6 Months Ended

Jun. 30, 2019

Temporary Equity Disclosure [Abstract]

Summary of Convertible Preferred Stock and Redeemable Convertible Preferred Stock

Convertible preferred stock and redeemable convertible preferred stock consisted of the following (in thousands, except share amounts):

	June 30, 2019
	Shares Authorized		Shares Issued and Outstanding		Net Carrying Value		Aggregate Liquidation Preference
Series A		18,960,000		18,941,619	$	9,161	$	9,217
Series B		13,784,443		13,652,791		13,774		14,000
Series C		9,335,659		9,328,791		20,289		20,374
Series D		14,367,652		14,324,642		39,886		40,000
Series E		13,612,543		13,586,946		39,880		40,000
Series F		12,956,724		12,956,724		56,154		59,623
Series G		21,986,733		21,986,733		118,325		126,444
Series H		10,182,113		10,182,111		69,861		71,539
Total		115,185,867		114,960,357	$	367,330	$	381,197

	December 31, 2018
	Shares Authorized		Shares Issued and Outstanding		Net Carrying Value		Aggregate Liquidation Preference
Series A		18,960,000		18,941,619	$	9,161	$	9,217
Series B		13,784,443		13,652,791		13,774		14,000
Series C		9,335,659		9,328,791		20,289		20,374
Series D		14,367,652		14,324,642		39,886		40,000
Series E		13,612,543		13,586,946		39,880		40,000
Series F		12,956,724		12,956,724		54,968		57,211
Series G		21,986,733		21,986,733		116,242		120,544
Total		105,003,754		104,778,246	$	294,200	$	301,346