Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 578,301	$ 130,736
Marketable securities	1,419,161	1,425,700
Accounts receivable, net	13,556	11,477
Deferred Tax Assets	256	44,756
Prepaid expenses and other current assets	42,017	30,795
Total current assets	2,053,291	1,643,464
Property and equipment, net	337,879	333,861
Goodwill	52,527	52,527
Deferred Tax Assets, Net of Valuation Allowance, Noncurrent	51,976	7,299
Other long-term assets	29,168	25,325
Total long-term assets	471,550	419,012
Total assets	2,524,841	2,062,476
Current liabilities:
Accounts payable and accrued liabilities	138,846	130,391
Deferred revenues	596,869	564,627
Convertible Debentures, including contingent interest derivative	606,282	0
Deferred Tax Liabilities, Net, Current	398,637	0
Total current liabilities	1,740,634	695,018
Long-term deferred revenues	259,515	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	3,698	386,914
Other long-term liabilities	44,926	44,298
Total long-term liabilities	1,058,139	1,376,781
Total liabilities	2,798,773	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: 319,852 at June 30, 2013 and 318,722 at December 31, 2012; Outstanding shares: 144,121 at June 30, 2013 and 153,392 at December 31, 2012	320	319
Additional paid-in capital	19,458,183	19,891,291
Accumulated deficit	(19,729,142)	(19,900,545)
Accumulated other comprehensive loss	(3,293)	(388)
Total stockholders' deficit	(273,932)	(9,323)
Total liabilities and stockholders' deficit	$ 2,524,841	$ 2,062,476