CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 93,058	$ 65,989
Accounts receivable, net	88,500	81,795
Inventories, net	29,042	25,638
Prepaid expenses and other current assets	40,762	23,280
Total current assets	251,362	196,702
Property and equipment, net	22,928	22,321
Operating lease right-of-use assets	27,491
Goodwill	239,780	240,618
Intangibles, net	4,461	12,817
Other long-term assets	41,305	38,377
Total assets	587,327	510,835
Current liabilities:
Other debts and finance lease obligations, current	6,713	7,175
Accounts payable	40,933	33,778
Income taxes payable	1,226	1,099
Deferred revenue	37,117	41,592
Accrued and other current liabilities	62,535	52,761
Convertible notes, short-term	43,375
Total current liabilities	191,899	136,405
Convertible notes, long-term	88,629	114,808
Other debts and finance lease obligations, long-term	10,511	12,684
Income taxes payable, long-term	178	460
Other non-current liabilities	41,254	18,228
Total liabilities	332,471	282,585
Commitments and contingencies (Note 19)
Convertible notes	2,410
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; 91,875 and 87,057 shares issued and outstanding at December 31, 2019 and 2018, respectively	92	87
Additional paid-in capital	2,327,359	2,296,795
Accumulated deficit	(2,071,940)	(2,067,416)
Accumulated other comprehensive loss	(3,065)	(1,216)
Total stockholders’ equity	252,446	228,250
Total liabilities and stockholders’ equity	$ 587,327	$ 510,835