Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 117,591	$ 130,736
Marketable securities	1,689,223	1,425,700
Accounts receivable, net	14,823	11,477
Deferred Tax Assets	253	44,756
Prepaid expenses and other current assets	39,853	30,795
Total current assets	1,861,743	1,643,464
Property and equipment, net	337,785	333,861
Goodwill	52,527	52,527
Deferred Tax Assets, Net of Valuation Allowance, Noncurrent	48,391	7,299
Other long-term assets	29,505	25,325
Total long-term assets	468,208	419,012
Total assets	2,329,951	2,062,476
Current liabilities:
Accounts payable and accrued liabilities	145,426	130,391
Deferred revenues	597,033	564,627
Convertible Debentures, including contingent interest derivative	613,751	0
Deferred Tax Liabilities, Net, Current	407,860	0
Total current liabilities	1,764,070	695,018
Long-term deferred revenues	260,963	247,955
Senior Notes	750,000	0
Convertible debentures, including contingent interest derivative	0	597,614
Credit facility	0	100,000
Long-term deferred tax liabilities	3,832	386,914
Other long-term liabilities	44,903	44,298
Total long-term liabilities	1,059,698	1,376,781
Total liabilities	2,823,768	2,071,799
Commitments and contingencies
Stockholders' deficit:
Preferred stock-par value $.001 per share; Authorized shares: 5,000; Issued and outstanding shares: none	0	0
Common stock-par value $.001 per share; Authorized shares: 1,000,000; Issued shares: 320,177 at September 30, 2013 and 318,722 at December 31, 2012; Outstanding shares: 137,654 at September 30, 2013 and 153,392 at December 31, 2012	320	319
Additional paid-in capital	19,157,314	19,891,291
Accumulated deficit	(19,648,244)	(19,900,545)
Accumulated other comprehensive loss	(3,207)	(388)
Total stockholders' deficit	(493,817)	(9,323)
Total liabilities and stockholders' deficit	$ 2,329,951	$ 2,062,476