CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 28, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 58,064	$ 65,989
Accounts receivable, net	70,571	81,795
Inventories	27,659	25,638
Prepaid expenses and other current assets	29,209	23,280
Total current assets	185,503	196,702
Property and equipment, net	19,312	22,321
Operating lease right-of-use assets	30,386
Goodwill	240,335	240,618
Intangibles, net	8,640	12,817
Other long-term assets	42,545	38,377
Total assets	526,721	510,835
Current liabilities:
Other debts and finance lease obligations, current	1,379	7,175
Accounts payable	31,849	33,778
Income taxes payable	989	1,099
Deferred revenue	47,330	41,592
Accrued and other current liabilities	56,764	52,761
Total current liabilities	138,311	136,405
Convertible notes, long-term	118,070	114,808
Other debts and finance lease obligations, long-term	16,697	12,684
Income taxes payable, long-term	266	460
Other non-current liabilities	41,311	18,228
Total liabilities	314,655	282,585
Commitments and contingencies (Note 17)
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; 89,074 and 87,057 shares issued and outstanding at June 28, 2019 and December 31, 2018, respectively	89	87
Additional paid-in capital	2,302,798	2,296,795
Accumulated deficit	(2,089,167)	(2,067,416)
Accumulated other comprehensive loss	(1,654)	(1,216)
Total stockholders’ equity	212,066	228,250
Total liabilities and stockholders’ equity	$ 526,721	$ 510,835