CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 01, 2021	Sep. 25, 2020	Oct. 01, 2021	Sep. 25, 2020
Total net revenue	$ 126,321	$ 94,892	$ 351,345	$ 247,303
Total cost of revenue	60,167	45,968	169,541	123,868
Total gross profit	66,154	48,924	181,804	123,435
Operating expenses:
Research and development	26,552	20,206	74,863	61,827
Selling, general and administrative	34,231	28,773	102,728	86,996
Amortization of intangibles	0	752	507	2,264
Restructuring and related charges	0	814	43	1,572
Total operating expenses	60,783	50,545	178,141	152,659
Income (loss) from operations	5,371	(1,621)	3,663	(29,224)
Interest expense, net	(2,686)	(2,807)	(7,919)	(8,772)
Loss on convertible debt extinguishment	0	0	0	(834)
Other income (expense), net	(213)	(167)	659	(813)
Income (loss) before income taxes	2,472	(4,595)	(3,597)	(39,643)
Provision for income taxes	942	786	3,006	3,093
Net income (loss)	$ 1,530	$ (5,381)	$ (6,603)	$ (42,736)
Net income (loss) per share:
Basic (in dollars per share)	$ 0.01	$ (0.06)	$ (0.07)	$ (0.44)
Diluted (in dollars per share)	$ 0.01	$ (0.06)	$ (0.07)	$ (0.44)
Shares used in per share calculation:
Basic (in shares)	102,099	97,563	101,057	96,623
Diluted (in shares)	106,421	97,563	101,057	96,623
Appliance and integration
Total net revenue	$ 91,853	$ 63,251	$ 250,427	$ 153,227
Total cost of revenue	47,326	32,082	130,310	81,153
SaaS and service
Total net revenue	34,468	31,641	100,918	94,076
Total cost of revenue	$ 12,841	$ 13,886	$ 39,231	$ 42,715