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Segment Information - Summary Financial Infomation by reportable segments (Details) $ in Thousands | 3 Months Ended
--- | ---
Apr. 02, 2021 USD ($) segment | Mar. 27, 2020 USD ($)
Segment Reporting Information [Line Items] |  |  |
Total net revenue | [1] | $ 111,576 | $ 78,417
Gross Profit |  | 55,145 | 36,738
Operating income (loss) |  | $ (3,844) | (18,049)
Number of Reportable Segments | segment |  | 2 |
Operating Segments [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total net revenue |  | $ 111,576 | 78,417
Gross Profit |  | 56,182 | 38,321
Operating income (loss) |  | 5,068 | (9,532)
Operating Segments [Member] | Video [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total net revenue |  | 70,331 | 54,372
Gross Profit |  | 38,774 | 27,907
Operating income (loss) |  | 3,772 | (6,267)
Operating Segments [Member] | Cable Access [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total net revenue |  | 41,245 | 24,045
Gross Profit |  | 17,408 | 10,414
Operating income (loss) |  | $ 1,296 | $ (3,265)
[1] | Revenue is attributed to countries based on the location of the customer.

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