Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 705,879	$ 191,608
Marketable securities	1,165,443	1,233,076
Accounts receivable, net	14,656	13,448
Other Assets, Current	54,006	52,475
Total current assets	1,939,984	1,490,607
Property and equipment, net	311,870	319,028
Goodwill	52,527	52,527
Deferred Tax Assets, Net of Valuation Allowance, Noncurrent	266,508	266,954
Other long-term assets	36,821	25,743
Total long-term assets	667,726	664,252
Total assets	2,607,710	2,154,859
Current liabilities:
Accounts payable and accrued liabilities	150,482	190,278
Deferred revenues	648,439	621,307
Convertible Debentures, including contingent interest derivative	635,453	631,190
Deferred Tax Liabilities, Net, Current	487,817	477,781
Total current liabilities	1,922,191	1,920,556
Long-term deferred revenues	276,497	269,047
Senior Notes	1,250,000	750,000
Other long-term liabilities	106,899	98,722
Total long-term liabilities	1,633,396	1,117,769
Total liabilities	3,555,587	3,038,325
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: 322,707 at March 31, 2015 and 321,699 at December 31, 2014; Outstanding shares: 116,429 at March 31, 2015 and 118,452 at December 31, 2014	323	322
Additional paid-in capital	17,967,312	18,120,045
Accumulated deficit	(18,912,597)	(19,000,835)
Accumulated other comprehensive loss	(2,915)	(2,998)
Total stockholders' deficit	(947,877)	(883,466)
Total liabilities and stockholders' deficit	$ 2,607,710	$ 2,154,859