Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Net Revenue:
Total net revenue	$ 250,101	$ 156,810	$ 456,763	$ 293,386
Cost of Revenue:
Total cost of revenue	135,892	79,058	241,663	152,522
Gross Profit:
Total gross profit	114,209	77,752	215,100	140,864
Operating Expenses:
Research and development	61,994	40,196	117,732	74,322
Sales and marketing	36,568	22,259	70,375	42,577
General and administrative	26,033	15,429	48,119	30,999
Total operating expenses	124,595	77,884	236,226	147,898
Loss from Operations	(10,386)	(132)	(21,126)	(7,034)
Other Income, Net:
Interest expense	(571)	(57)	(669)	(108)
Other income, net	1,240	361	2,207	809
Total other income, net	669	304	1,538	701
Income (Loss) Before Income Taxes	(9,717)	172	(19,588)	(6,333)
Income tax (benefit) expense	(384)	(354)	(523)	(225)
Net Income (Loss)	$ (9,333)	$ 526	$ (19,065)	$ (6,108)
Net income (loss) per share —basic	$ (0.08)	$ 0.01	$ (0.17)	$ (0.06)
Net income (loss) per share —diluted	$ (0.08)	$ 0.00	$ (0.17)	$ (0.06)
Weighted-average shares used in computing net income (loss) per share —basic	114,572	102,652	112,734	101,079
Weighted-average shares used in computing net income (loss) per share —diluted	114,572	121,698	112,734	101,079
Player | Goods
Net Revenue:
Total net revenue	$ 82,419	$ 66,469	$ 154,928	$ 127,968
Cost of Revenue:
Total cost of revenue	77,912	51,730	143,319	103,528
Gross Profit:
Total gross profit	4,507	14,739	11,609	24,440
Platform | Services
Net Revenue:
Total net revenue	167,682	90,341	301,835	165,418
Cost of Revenue:
Total cost of revenue	57,980	27,328	98,344	48,994
Gross Profit:
Total gross profit	$ 109,702	$ 63,013	$ 203,491	$ 116,424