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Other Current Assets (Details) - USD ($) $ in Thousands | Mar. 31, 2018 | Dec. 30, 2017
--- | --- | ---
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] |  |
Prepaid expenses | $ 18,363 | $ 17,073
Royalties receivable | 7,500 | 7,400
Customer note receivables | 3,375 | 2,777
Prepaid income taxes | 620 | 3,493
Employee loans and advances | 361 | 364
Due from related party | 21 | 39
Restricted cash | 0 | 33
Other current assets | 4,423 | 2,422
Total other current assets | $ 34,663 | $ 33,601

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