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Valuation And Qualifying Accounts (Detail) - Allowance for Doubtful Accounts Receivable [Member] - USD ($) $ in Thousands | 12 Months Ended
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Dec. 30, 2018 | Dec. 31, 2017 | Jan. 01, 2017
Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |  |
Balance Beginning of Year |  | $ 1,424 | $ 2,342 | $ 2,662
Provision (Benefit) |  | 903 | (88) | (51)
Additions and Deductions from Reserves | [1] | (448) | (830) | (269)
Balance End of Year |  | $ 1,879 | $ 1,424 | $ 2,342
[1] | Consists primarily of write-offs, recoveries of bad debt and certain reclassifications.

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- Definition Valuation Allowances And Reserves Additions Deductions + References No definition available. + Details
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- Definition Valuation allowances and reserves provision benefit. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount of valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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