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Goodwill and Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands | Dec. 29, 2018 | Dec. 30, 2017
--- | --- | ---
Summary of intangible assets, net (excluding goodwill) |  |
Adjusted cost | $ 45,385 | $ 32,584
Accumulated amortization | (18,059) | (30,378)
Net carrying amount | 27,326 | 2,206
Developed technology [Member] |  |
Summary of intangible assets, net (excluding goodwill) |  |
Adjusted cost | 35,954 | 18,887
Accumulated amortization | (16,532) | (16,681)
Net carrying amount | 19,422 | 2,206
Customer relationships [Member] |  |
Summary of intangible assets, net (excluding goodwill) |  |
Adjusted cost | 6,531 | 9,438
Accumulated amortization | (1,519) | (9,438)
Net carrying amount | 5,012 | 0
Brand names [Member] |  |
Summary of intangible assets, net (excluding goodwill) |  |
Adjusted cost |  | 1,927
Accumulated amortization |  | (1,927)
Net carrying amount |  | 0
Patented technology [Member] |  |
Summary of intangible assets, net (excluding goodwill) |  |
Adjusted cost |  | 2,252
Accumulated amortization |  | (2,252)
Net carrying amount |  | 0
In-Process research and development [Member] |  |
Summary of intangible assets, net (excluding goodwill) |  |
Adjusted cost | 1,400 |
Accumulated amortization | 0 |
Net carrying amount | 1,400 |
Trade name [Member] |  |
Summary of intangible assets, net (excluding goodwill) |  |
Adjusted cost | 1,500 | 80
Accumulated amortization | (8) | (80)
Net carrying amount | $ 1,492 | $ 0

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