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Prepaid Expenses And Other Current Assets (Details) - USD ($) $ in Thousands | Dec. 30, 2017 | Dec. 31, 2016
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Prepaid Expenses And Other Current Assets [Abstract] |  |
Prepaid insurance | $ 1,081 | $ 1,475
Other prepaid expenses | 7,236 | 7,755
Federal income taxes receivable | 8,677 | 12,787
Miscellaneous receivables, net | 4,780 | 4,257
Deferred commissions | 3,009 | 5,399
Other current assets | 5,327 | 5,604
Prepaid expenses and other current assets | $ 30,110 | $ 37,277

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