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Condensed Consolidated Balance Sheets - USD ($)
$ in Thousands
Sep. 30, 2015
Dec. 31, 2014
Current Assets:    
Cash and cash equivalents $ 100,524 $ 91,905
Accounts receivable, net of allowances of $3,227 and $3,246 as of September 30, 2015 and December 31, 2014 41,492 54,003
Inventory 17,566 20,701
Prepaid expenses and other current assets 4,918 4,732
Total current assets 164,500 171,341
Property and equipment, net 9,087 10,780
Other long-term assets 4,372 4,859
Total Assets 177,959 186,980
LIABILITIES AND STOCKHOLDERS’ EQUITY    
Accounts payable 8,182 8,994
Accrued liabilities 20,960 22,435
Deferred revenue, current 44,352 39,256
Total current liabilities 73,494 70,685
Deferred revenue, non-current 21,986 17,964
Other non-current liabilities 1,541 1,766
Total Liabilities $ 97,021 $ 90,415
Commitments and contingencies
Stockholders' Equity:    
Common stock, par value $0.00001 — 500,000 shares authorized as of September 30, 2015 and December 31, 2014; 63,244 and 61,377 shares issued and outstanding as of September 30, 2015 and December 31, 2014 $ 1 $ 1
Additional paid-in capital 295,400 278,349
Accumulated deficit (214,463) (181,785)
Total Stockholders' Equity 80,938 96,565
Total Liabilities And Stockholders' Equity $ 177,959 $ 186,980