CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Apr. 01, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 100,739	$ 133,431
Accounts receivable, net	115,594	88,529
Inventories	81,816	71,195
Prepaid expenses and other current assets	27,251	29,972
Total current assets	325,400	323,127
Property and equipment, net	42,577	42,721
Operating lease right-of-use assets	29,556	30,968
Other non-current assets	63,281	56,657
Goodwill	239,631	240,213
Total assets	700,445	693,686
Current liabilities:
Convertible debt, current	37,518	36,824
Other debts, current	4,906	4,992
Accounts payable	52,524	64,429
Deferred revenue	75,474	57,226
Operating lease liabilities, current	7,362	7,346
Other current liabilities	53,072	53,644
Total current liabilities	230,856	224,461
Convertible debt, non-current	113,324	98,941
Other debts, non-current	12,740	12,989
Operating lease liabilities, non-current	27,689	29,120
Other non-current liabilities	31,183	31,379
Total liabilities	415,792	396,890
Commitments and contingencies (Note 11)
Convertible debt (Note 6)		883
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; 104,603 and 102,959 shares issued and outstanding at April 1, 2022 and December 31, 2021, respectively	105	103
Additional paid-in capital	2,362,873	2,387,039
Accumulated deficit	(2,073,288)	(2,087,957)
Accumulated other comprehensive loss	(5,037)	(3,272)
Total stockholders’ equity	284,653	295,913
Total liabilities and stockholders’ equity	$ 700,445	$ 693,686