Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 267,053	$ 339,223
Marketable securities	1,450,155	1,384,062
Accounts receivable, net	15,437	13,631
Other Assets, Current	57,553	66,283
Total current assets	1,790,198	1,803,199
Property and equipment, net	329,711	339,653
Goodwill	52,527	52,527
Deferred Tax Assets, Net of Valuation Allowance, Noncurrent	409,616	437,643
Other long-term assets	27,297	27,745
Total long-term assets	819,151	857,568
Total assets	2,609,349	2,660,767
Current liabilities:
Accounts payable and accrued liabilities	108,994	149,276
Deferred revenues	620,593	595,221
Convertible Debentures, including contingent interest derivative	621,061	624,056
Deferred Tax Liabilities, Net, Current	693,149	660,633
Total current liabilities	2,043,797	2,029,186
Long-term deferred revenues	265,627	260,615
Senior Notes	750,000	750,000
Other long-term liabilities	7,544	44,524
Total long-term liabilities	1,023,171	1,055,139
Total liabilities	3,066,968	3,084,325
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: 321,301 at March 31, 2014 and 320,358 at December 31, 2013; Outstanding shares: 131,994 at March 31, 2014 and 133,724 at December 31, 2013	321	320
Additional paid-in capital	18,806,804	18,935,302
Accumulated deficit	(19,261,672)	(19,356,095)
Accumulated other comprehensive loss	(3,072)	(3,085)
Total stockholders' deficit	(457,619)	(423,558)
Total liabilities and stockholders' deficit	$ 2,609,349	$ 2,660,767