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Basis of Presentation and General Information (Components of Other Intangible Assets, Included In Other Assets) (Details) - USD ($) $ in Thousands | Dec. 29, 2017 | Dec. 30, 2016
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Finite Lived Intangible Assets Net [Abstract] |  |
Gross carrying amount | $ 27,147 | $ 22,448
Accumulated amortization | (21,869) | (19,779)
Foreign currency translation adjustment | 245 | 33
Intangible Assets, net | $ 5,523 | $ 2,702

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