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Condensed Consolidated Balance Sheets (Unaudited) - USD ($)
$ in Thousands
Jun. 30, 2018
Dec. 31, 2017
Current assets:    
Cash and cash equivalents $ 46,168 $ 32,424
Accounts receivable and unbilled receivables, net of allowances of $5,341 and $5,738, respectively 174,570 190,046
Inventories, net 103,732 96,137
Prepaid expenses 18,266 20,392
Other current assets 16,122 13,273
Total current assets 358,858 352,272
Property and equipment, net 50,884 42,595
Long-term investment in sales-type leases, net 16,707 15,435
Goodwill 336,550 337,751
Intangible assets, net 155,750 168,107
Long-term deferred tax assets 9,451 9,454
Prepaid commissions 38,620 41,432
Other long-term assets 59,655 49,316
Total assets 1,026,475 1,016,362
Current liabilities:    
Accounts payable 35,261 48,290
Accrued compensation 31,168 27,241
Accrued liabilities 31,721 35,693
Long-term debt, current portion, net 17,708 15,208
Deferred revenues, net 85,776 78,774
Total current liabilities 201,634 205,206
Long-term deferred revenues 8,957 10,623
Long-term deferred tax liabilities 34,788 41,446
Other long-term liabilities 11,394 9,829
Long-term debt, net 181,062 194,917
Total liabilities 437,835 462,021
Commitments and contingencies (Note 10)
Stockholders’ equity:    
Preferred stock, $0.001 par value, 5,000 shares authorized; no shares issued 0 0
Common stock, $0.001 par value, 100,000 shares authorized; 48,346 and 47,577 shares issued; 39,204 and 38,432 shares outstanding, respectively 48 48
Treasury stock at cost, 9,145 shares outstanding (185,074) (185,074)
Additional paid-in capital 612,576 585,755
Retained earnings 169,033 159,725
Accumulated other comprehensive loss (7,943) (6,113)
Total stockholders’ equity 588,640 554,341
Total liabilities and stockholders’ equity $ 1,026,475 $ 1,016,362