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Consolidated Balance Sheets-Unaudited - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
Current assets:    
Cash and cash equivalents $ 86,943 $ 36,112
Short-term investments 114,923 235,547
Accounts receivable, net 30,876 56,532
Inventory 3,989 4,243
Prepaid expenses and other current assets 9,461 5,320
Total current assets 246,192 337,754
Property and equipment, net of accumulated depreciation and amortization of $63,360 and $61,741, respectively 11,524 14,047
Goodwill 44,543 44,543
Intangible assets, net of accumulated amortization of $5,886 and $5,003, respectively 18,833 19,716
Other assets 1,448 1,655
Total assets 322,540 417,715
Current liabilities:    
Accounts payable 29,763 12,178
Accrued liabilities 57,338 42,151
Current portion of long-term debt, net of deferred issuance costs 10,457 11,012
Total current liabilities 97,558 65,341
Long-term debt, net of deferred issuance costs 234,807 234,171
Other long-term liabilities 862 1,102
Total liabilities 333,227 300,614
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; 225,000 shares authorized; 107,898 and 106,679 shares issued, respectively 108 106
Additional paid-in capital 1,470,862 1,462,172
Accumulated deficit (1,477,126) (1,341,444)
Accumulated other comprehensive loss 312 84
Treasury stock, at cost, 793 and 407 shares, respectively (4,843) (3,817)
Total stockholder's equity (deficit) (10,687) 117,101
Total liabilities and equity $ 322,540 $ 417,715