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SEGMENT INFORMATION - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 28, 2024	Jun. 30, 2023	Jun. 28, 2024	Jun. 30, 2023
Segment Reporting Information [Line Items]
Total revenue	$ 138,740	$ 155,963	$ 260,800	$ 313,612
Appliance and integration
Segment Reporting Information [Line Items]
Total revenue	94,184	111,127	175,779	225,921
Product sales
Segment Reporting Information [Line Items]
Total revenue	87,441	99,594	161,357	207,418
Professional services
Segment Reporting Information [Line Items]
Total revenue	6,743	11,533	14,422	18,503
SaaS and service
Segment Reporting Information [Line Items]
Total revenue	44,556	44,836	85,021	87,691
SaaS
Segment Reporting Information [Line Items]
Total revenue	14,023	13,584	26,887	25,167
Support services
Segment Reporting Information [Line Items]
Total revenue	$ 30,533	$ 31,252	$ 58,134	$ 62,524

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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