Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 20,759	$ 186,309
Short-term investments, including restricted investments of $430	186,089	95,383
Accounts receivable, net of allowances of $35	233	350
Prepaid expenses and other current assets	9,004	3,748
Total current assets	216,085	285,790
Property and equipment, net of accumulated depreciation and amortization of $83,412 and $80,535, respectively	43,515	46,417
Goodwill	44,543	44,543
Other intangible assets	53,557	53,557
Other assets	135	205
Total assets	357,835	430,512
Current liabilities:
Accounts payable	4,306	6,042
Accrued liabilities	12,782	13,786
Current portion of deferred revenue	421	119
Current portion of long-term debt	1,542	1,443
Total current liabilities	19,051	21,390
Deferred revenue, net of current portion	13,910	14,212
Long-term debt	22,284	23,451
Deferred tax liabilities	18,745	18,745
Other long-term liabilities	31,086	55,146
Total liabilities	105,076	132,944
Commitments and contingencies
Equity:
Preferred stock, $.01 par value; 5,000 shares authorized; no shares issued and outstanding	0	0
Common stock, $.001 par value; 900,000 shares authorized; 494,874 and 480,389 shares issued, respectively	495	480
Additional paid-in capital	1,127,832	1,087,033
Accumulated deficit	(874,959)	(789,621)
Accumulated other comprehensive gain	21	21
Treasury stock, at cost, 380 and 218 shares, respectively	(630)	(345)
Total equity	252,759	297,568
Total liabilities and equity	$ 357,835	$ 430,512