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Consolidated Balance Sheets (Unaudited) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2014
Dec. 31, 2013
Current assets:    
Cash and cash equivalents $ 46,517 $ 37,499
Short-term investments, including restricted investments of $430 51,850 91,629
Accounts receivable, net of allowances of $35 471 790
Prepaid expenses and other current assets 6,570 4,636
Total current assets 105,408 134,554
Property and equipment, net of accumulated depreciation and amortization of $80,747 and $81,945, respectively 39,959 41,362
Goodwill 44,543 44,543
Other intangible assets 53,557 53,557
Other assets 133 144
Total assets 243,600 274,160
Current liabilities:    
Accounts payable 7,072 9,715
Accrued liabilities 7,952 7,674
Current portion of deferred revenue 903 195
Current portion of long-term debt 1,746 1,710
Total current liabilities 17,673 19,294
Deferred revenue, net of current portion 12,679 13,405
Long-term debt 19,711 20,167
Deferred tax liabilities 18,745 18,745
Other long-term liabilities 34,017 32,386
Total liabilities 102,825 103,997
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; 515,784 and 514,349 shares issued, respectively 516 514
Additional paid-in capital 1,177,432 1,175,108
Accumulated deficit (1,034,793) (1,003,958)
Accumulated other comprehensive gain 10 2
Treasury stock, at cost, 1,281 and 814 shares, respectively (2,390) (1,503)
Total equity 140,775 170,163
Total liabilities and equity $ 243,600 $ 274,160