CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 55,635	$ 126,190
Short-term investments	6,923	26,604
Accounts receivable, net	86,765	69,515
Inventories	41,193	38,819
Prepaid expenses and other current assets	26,319	25,003
Total current assets	216,835	286,131
Property and equipment, net	32,164	27,012
Goodwill	237,279	197,781
Intangibles, net	29,231	4,097
Other long-term assets	38,560	9,936
Total assets	554,069	524,957
Current liabilities:
Other debts and capital lease obligations, current	7,275	0
Accounts payable	28,892	19,364
Income taxes payable	1,166	307
Deferred revenue	52,414	33,856
Accrued and other current liabilities	55,150	31,354
Total current liabilities	144,897	84,881
Convertible notes, long-term	103,259	98,295
Other debts and capital lease obligations, long-term	13,915	0
Income taxes payable, long-term	2,926	3,886
Other non-current liabilities	18,431	9,727
Total liabilities	283,428	196,789
Commitments and contingencies (Note 19)
Stockholders’ equity:
Preferred stock, $0.001 par value, 5,000 shares authorized; no shares issued or outstanding	0	0
Common stock, $0.001 par value, 150,000 shares authorized; 78,456 and 76,015 shares issued and outstanding at December 31, 2016 and 2015, respectively	78	76
Additional paid-in capital	2,254,055	2,236,418
Accumulated deficit	(1,976,222)	(1,903,908)
Accumulated other comprehensive loss	(7,270)	(4,418)
Total stockholders’ equity	270,641	328,168
Total liabilities and stockholders’ equity	$ 554,069	$ 524,957