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Fair Value Measurements and Fair Value of Financial Instruments - Carrying Value and Fair Value of Debt Obligations (Details) - USD ($) $ in Thousands | Sep. 29, 2018 | Dec. 30, 2017
--- | --- | ---
Carrying Value [Member] |  |
Debt Obligations: |  |
Revolving credit facility | $ 168,468 | $ 237,011
Commercial real estate loan | 20,584 | 0
Capital lease obligations | 4,277 | 4,633
Other borrowings | 286 | 436
Debt obligations | 193,615 | 242,080
Fair Value [Member] |  |
Debt Obligations: |  |
Revolving credit facility | 168,468 | 237,011
Commercial real estate loan | 20,288 | 0
Capital lease obligations | 4,277 | 4,633
Other borrowings | 286 | 436
Debt obligations | $ 193,319 | $ 242,080

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- Definition Capital Lease Obligations, Fair Value Disclosure + References No definition available. + Details
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Period Type: | instant

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- Definition Other Borrowings, Fair Value Disclosure + References No definition available. + Details
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- Definition Real Estate Loan, Fair Value Disclosure + References No definition available. + Details
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- Definition Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13433-108611 + Details
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Period Type: | instant

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- References No definition available. + Details
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- Definition Fair value portion of contractual arrangement with a lender under which borrowings can be made up to a specific amount at any point in time. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
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- Details
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- Details
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