Condensed Consolidated Balance Sheets - USD ($) shares in Thousands, $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 256,869	$ 401,194
Marketable securities	941,552	765,713
Other Assets, Current	65,989	51,033
Total current assets	1,264,410	1,217,940
Property and equipment, net	249,093	245,571
Goodwill	52,527	52,527
Deferred Income Tax Assets, Net	65,163	67,914
Deposits to acquire Intangible Assets	145,000	145,000
Other long-term assets	38,514	37,958
Total long-term assets	550,297	548,970
Total assets	1,814,707	1,766,910
Current liabilities:
Accounts payable and accrued liabilities	204,511	208,642
Deferred revenues	843,664	780,051
Total current liabilities	1,048,175	988,693
Long-term deferred revenues	314,089	282,838
Senior Notes	1,785,152	1,790,083
Other long-term liabilities	84,869	95,494
Total long-term liabilities	2,184,110	2,168,415
Total liabilities	3,232,285	3,157,108
Commitments and contingencies
Stockholders' deficit:
Preferred stock-par value $.001 per share	0	0
Common Stocks, Including Additional Paid in Capital	13,793,049	14,275,160
Accumulated deficit	(15,207,854)	(15,662,602)
Accumulated other comprehensive loss	(2,773)	(2,756)
Total stockholders' deficit	(1,417,578)	(1,390,198)
Total liabilities and stockholders' deficit	$ 1,814,707	$ 1,766,910
Common Stock, Shares, Issued	354,154	353,789
Common stock, outstanding shares	111,283	113,470
Preferred stock, authorized shares	5,000	5,000
Preferred stock, par value	$ 0.001	$ 0.001
Common stock, authorized shares	1,000,000	1,000,000
Common stock, par value	$ 0.001	$ 0.001