Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Revenue:
Online game	$ 153,481	$ 137,057
Advertising and other	40,803	49,664
Total revenue	194,284	186,721
Costs and expenses:
Cost of revenue	64,877	57,139
Research and development	69,202	87,737
Sales and marketing	46,620	46,344
General and administrative	22,565	22,384
Total costs and expenses	203,264	213,604
Income (loss) from operations	(8,980)	(26,883)
Interest income	937	705
Other income (expense), net	1,436	2,100
Income (loss) before income taxes	(6,607)	(24,078)
Provision for (benefit from) income taxes	2,867	2,480
Net income (loss)	$ (9,474)	$ (26,558)
Net income (loss) per share attributable to common stockholders:
Basic	$ (0.01)	$ (0.03)
Diluted	$ (0.01)	$ (0.03)
Weighted average common shares used to compute net income (loss) per share attributable to common stockholders:
Basic	875,712	871,093
Diluted	875,712	871,093