CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Oct. 01, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 128,434	$ 98,645
Accounts receivable, net	75,442	66,227
Inventories	51,856	35,031
Prepaid expenses and other current assets	35,443	38,132
Total current assets	291,175	238,035
Property and equipment, net	43,848	43,141
Operating lease right-of-use assets	29,216	27,556
Other non-current assets	38,325	39,117
Goodwill	241,302	243,674
Total assets	643,866	591,523
Current liabilities:
Convertible debt, current	36,592	0
Other debts, current	5,028	11,771
Accounts payable	32,352	23,543
Deferred revenue	58,106	54,294
Operating lease liabilities, current	6,698	7,354
Other current liabilities	64,963	50,333
Total current liabilities	203,739	147,295
Convertible debt, non-current	97,563	129,507
Other debts, non-current	13,538	10,086
Operating lease liabilities, non-current	28,049	26,071
Other non-current liabilities	26,181	20,262
Total liabilities	369,070	333,221
Commitments and contingencies (Note 10)
Convertible debt (Note 6)	1,115	0
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; 102,549 and 98,204 shares issued and outstanding at October 1, 2021 and December 31, 2020, respectively	103	98
Additional paid-in capital	2,381,177	2,353,559
Accumulated deficit	(2,107,814)	(2,101,211)
Accumulated other comprehensive income	215	5,856
Total stockholders’ equity	273,681	258,302
Total liabilities and stockholders’ equity	$ 643,866	$ 591,523