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Other Current Assets (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Jan. 02, 2016
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]    
Royalties receivable $ 7,500 $ 7,200
Prepaid expenses 13,051 9,930
Employee loans and advances 305 320
Other current assets 5,134 3,973
Total other current assets 26,014 21,423
Accounts Receivable, Related Parties, Current $ 24 $ 0