Consolidated Balance Sheets (Unaudited) (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 20,328	$ 47,208
Short-term investments, including restricted investments of $430	144,486	163,903
Accounts receivable, net of allowances of $35	505	744
Prepaid expenses and other current assets	3,874	2,883
Total current assets	169,193	214,738
Property and equipment, net of accumulated depreciation and amortization of $78,680 and $80,323, respectively	48,370	53,427
Goodwill	44,543	44,543
Other intangible assets	53,557	53,557
Other assets	253	619
Total assets	315,916	366,884
Current liabilities:
Accounts payable	3,671	3,159
Accrued liabilities	8,037	6,264
Current portion of deferred revenue	138	214
Current portion of long-term debt	1,380	1,138
Total current liabilities	13,226	10,775
Deferred revenue, net of current portion	14,212	14,212
Long-term debt	24,188	27,345
Deferred tax liabilities	18,745	18,745
Other long-term liabilities	51,357	48,783
Total liabilities	121,728	119,860
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; 337,895 and 337,566 shares issued, respectively	338	338
Additional paid-in capital	923,797	920,324
Accumulated deficit	(729,673)	(673,406)
Accumulated other comprehensive gain	71	5
Treasury stock, at cost, 218 and 158 shares, respectively	(345)	(237)
Total equity	194,188	247,024
Total liabilities and equity	$ 315,916	$ 366,884