Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 852,467	$ 742,217
Marketable securities		245,033
Accounts receivable, net of allowance of $0 at December 31, 2016 and December 31, 2015	77,260	79,610
Income tax receivable	296	5,233
Restricted cash	6,199	209
Other current assets	29,254	39,988
Total current assets	965,476	1,112,290
Goodwill	613,335	657,671
Other intangible assets, net	25,430	64,016
Property and equipment, net	269,439	273,221
Restricted cash	3,050	986
Other long-term assets	29,119	16,446
Total assets	1,905,849	2,124,630
Current liabilities:
Accounts payable	23,999	29,676
Income tax payable	1,889
Other current liabilities	75,754	77,691
Deferred revenue	141,998	128,839
Total current liabilities	243,640	236,206
Deferred revenue	158	204
Deferred tax liabilities	5,791	6,026
Other non-current liabilities	75,596	95,293
Total liabilities	325,185	337,729
Stockholders’ equity:
Common stock, $0.00000625 par value, and additional paid in capital - authorized shares: 2,020,517; shares outstanding: 886,850 shares (Class A, 770,269, Class B, 96,064 Class C, 20,517) as of December 31, 2016 and 903,617 (Class A, 769,533, Class B, 113,567, Class C, 20,517) as of December 31, 2015	3,349,714	3,234,551
Treasury stock		(98,942)
Accumulated other comprehensive income (loss)	(128,694)	(52,388)
Accumulated deficit	(1,640,356)	(1,296,320)
Total stockholders’ equity	1,580,664	1,786,901
Total liabilities and stockholders’ equity	$ 1,905,849	$ 2,124,630