Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 339,223	$ 130,736
Marketable securities	1,384,062	1,425,700
Accounts receivable, net	13,631	11,477
Deferred Tax Assets	1,743	44,756
Prepaid expenses and other current assets	64,540	30,795
Total current assets	1,803,199	1,643,464
Property and equipment, net	339,653	333,861
Goodwill	52,527	52,527
Long-term deferred tax assets	437,643	7,299
Other long-term assets	27,745	25,325
Total long-term assets	857,568	419,012
Total assets	2,660,767	2,062,476
Current liabilities:
Accounts payable and accrued liabilities	149,276	130,391
Convertible Debentures, including contingent interest derivative	624,056	0
Deferred revenues	595,221	564,627
Deferred Tax Liabilities, Net, Current	660,633	0
Total current liabilities	2,029,186	695,018
Long-term deferred revenues	260,615	247,955
Senior Notes	750,000	0
Convertible debentures, including contingent interest derivative	0	597,614
Long-term Debt	0	100,000
Long-term deferred tax liabilities	0	386,914
Other long-term tax liabilities	44,524	44,298
Total long-term liabilities	1,055,139	1,376,781
Total liabilities	3,084,325	2,071,799
Commitments and contingencies
Stockholders' deficit:
Preferred stock	0	0
Common stock	320	319
Additional paid-in capital	18,935,302	19,891,291
Accumulated deficit	(19,356,095)	(19,900,545)
Accumulated other comprehensive loss	(3,085)	(388)
Total stockholders' deficit	(423,558)	(9,323)
Total liabilities and stockholders' deficit	$ 2,660,767	$ 2,062,476