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Intangible Assets Intangible Assets - Schedule of Finite-Lived Intangible Assets (Details) - USD ($) $ in Thousands | Jun. 29, 2019 | Dec. 29, 2018
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Finite-Lived Intangible Assets [Line Items] |  |
Total intangible assets | $ 56,247 | $ 55,158
Accumulated amortization | (28,614) | (27,234)
Intangible assets, net | 27,633 | 27,924
Patents |  |
Finite-Lived Intangible Assets [Line Items] |  |
Total intangible assets | 22,224 | 21,323
Customer relationships |  |
Finite-Lived Intangible Assets [Line Items] |  |
Total intangible assets | 7,669 | 7,669
Licenses-related party |  |
Finite-Lived Intangible Assets [Line Items] |  |
Total intangible assets | 7,500 | 7,500
Acquired technology |  |
Finite-Lived Intangible Assets [Line Items] |  |
Total intangible assets | 5,580 | 5,580
Trademarks |  |
Finite-Lived Intangible Assets [Line Items] |  |
Total intangible assets | 4,372 | 4,190
Capitalized software development costs |  |
Finite-Lived Intangible Assets [Line Items] |  |
Total intangible assets | 3,436 | 3,430
Other |  |
Finite-Lived Intangible Assets [Line Items] |  |
Total intangible assets | $ 5,466 | $ 5,466

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