Consolidated Balance Sheets - USD ($) shares in Thousands, $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 223,487	$ 401,194
Marketable securities	982,318	765,713
Other current assets	62,930	51,033
Total current assets	1,268,735	1,217,940
Property and equipment, net	251,223	245,571
Goodwill	52,527	52,527
Deferred Income Tax Assets, Net	230,719	67,914
Deposits Assets, Noncurrent	145,000	145,000
Other long-term assets	35,560	37,958
Total long-term assets	715,029	548,970
Total assets	1,983,764	1,766,910
Current liabilities:
Accounts payable and accrued liabilities	226,580	208,642
Deferred revenues	847,411	780,051
Total current liabilities	1,073,991	988,693
Long-term deferred revenues	305,950	282,838
Senior Notes	1,785,709	1,790,083
Other long-term tax liabilities	78,633	95,494
Total long-term liabilities	2,170,292	2,168,415
Total liabilities	3,244,283	3,157,108
Commitments and contingencies
Stockholders' deficit:
Preferred stock	0	0
Common Stocks, Including Additional Paid in Capital	13,620,038	14,275,160
Accumulated deficit	(14,877,772)	(15,662,602)
Accumulated other comprehensive loss	(2,785)	(2,756)
Total stockholders' deficit	(1,260,519)	(1,390,198)
Total liabilities and stockholders' deficit	$ 1,983,764	$ 1,766,910
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, authorized shares	5,000	5,000
Common stock, par value	$ 0.001	$ 0.001
Common stock, authorized shares	1,000,000	1,000,000
Common Stock, Shares, Issued	354,199	353,789
Common stock, outstanding shares	110,519	113,470