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Other Current Assets (Details) - USD ($) $ in Thousands | Dec. 30, 2017 | Dec. 31, 2016
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Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] |  |
Prepaid expenses | $ 17,073 | $ 13,051
Royalties receivable | 7,400 | 7,500
Employee loans and advances | 364 | 305
Due from related party | 39 | 77
Restricted cash(1) | 33 | 2,081
Other current assets | 3,161 | 3,053
Total other current assets | 28,070 | $ 26,067
Loss Contingency, Estimate of Possible Loss | $ 10,500 |

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