CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 52,045	$ 57,024
Accounts receivable, net	74,760	69,844
Inventories	25,074	25,976
Prepaid expenses and other current assets	29,967	18,931
Total current assets	181,846	171,775
Property and equipment, net	27,703	29,265
Goodwill	243,805	242,827
Intangibles, net	19,233	21,279
Other long-term assets	43,647	42,913
Total assets	516,234	508,059
Current liabilities:
Other debts and capital lease obligations, current	7,551	7,610
Accounts payable	27,573	33,112
Income taxes payable	481	233
Deferred revenue	57,629	52,429
Accrued and other current liabilities	49,202	48,705
Total current liabilities	142,436	142,089
Convertible notes, long-term	110,201	108,748
Other debts and capital lease obligations, long-term	15,424	15,336
Income taxes payable, long-term	927	917
Other non-current liabilities	21,273	22,626
Total liabilities	290,261	289,716
Commitments and contingencies (Note 15)
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; 85,194 and 82,554 shares issued and outstanding at March 30, 2018 and December 31, 2017, respectively	85	83
Additional paid-in capital	2,280,847	2,272,690
Accumulated deficit	(2,060,075)	(2,057,812)
Accumulated other comprehensive income	5,116	3,382
Total stockholders’ equity	225,973	218,343
Total liabilities and stockholders’ equity	$ 516,234	$ 508,059