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Inventory (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Jan. 01, 2021
--- | --- | ---
Inventory [Line Items] |  |
Raw materials | $ 8,867 | $ 7,773
Work in process | 27,717 | 20,610
Finished goods | 12,927 | 7,291
Total | 49,511 | 35,674
Current portion included in inventory |  |
Inventory [Line Items] |  |
Total | 27,493 | 20,973
Long-term portion included in other long-term assets |  |
Inventory [Line Items] |  |
Total | $ 22,018 | $ 14,701

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