Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Net Revenue:
Total net revenue	$ 206,662	$ 136,576
Cost of Revenue:
Total cost of revenue	105,771	73,464
Gross Profit:
Total gross profit	100,891	63,112
Operating Expenses:
Research and development	55,738	34,126
Sales and marketing	33,807	20,318
General and administrative	22,086	15,570
Total operating expenses	111,631	70,014
Loss from Operations	(10,740)	(6,902)
Other Income, Net:
Interest expense	(98)	(51)
Other income, net	967	448
Total other income, net	869	397
Loss Before Income Taxes	(9,871)	(6,505)
Income tax (benefit) expense	(139)	129
Net Loss Attributable to Common Stockholders	$ (9,732)	$ (6,634)
Net loss per share attributable to common stockholders—basic and diluted	$ (0.09)	$ (0.07)
Weighted-average shares used in computing net loss per share attributable to common stockholders—basic and diluted	110,877	99,488
Player | Goods
Net Revenue:
Total net revenue	$ 72,509	$ 61,499
Cost of Revenue:
Total cost of revenue	65,407	51,798
Gross Profit:
Total gross profit	7,102	9,701
Platform | Services
Net Revenue:
Total net revenue	134,153	75,077
Cost of Revenue:
Total cost of revenue	40,364	21,666
Gross Profit:
Total gross profit	$ 93,789	$ 53,411