CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 28, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 61,654	$ 57,024
Accounts receivable, net	77,986	69,844
Inventories	23,333	25,976
Prepaid expenses and other current assets	24,226	18,931
Total current assets	187,199	171,775
Property and equipment, net	24,151	29,265
Goodwill	241,512	242,827
Intangibles, net	14,938	21,279
Other long-term assets	38,624	42,913
Total assets	506,424	508,059
Current liabilities:
Other debts and capital lease obligations, current	7,677	7,610
Accounts payable	29,354	33,112
Income taxes payable	830	233
Deferred revenue	48,679	52,429
Accrued and other current liabilities	50,734	48,705
Total current liabilities	137,274	142,089
Convertible notes, long-term	113,230	108,748
Other debts and capital lease obligations, long-term	13,155	15,336
Income taxes payable, long-term	747	917
Other non-current liabilities	18,989	22,626
Total liabilities	283,395	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; 86,687 and 82,554 shares issued and outstanding at September 28, 2018 and December 31, 2017, respectively	87	83
Additional paid-in capital	2,293,174	2,272,690
Accumulated deficit	(2,070,746)	(2,057,812)
Accumulated other comprehensive income	514	3,382
Total stockholders’ equity	223,029	218,343
Total liabilities and stockholders’ equity	$ 506,424	$ 508,059