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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 | Mar. 31, 2018 | Dec. 30, 2017
--- | --- | ---
Carrying Value [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Revolving credit facility | $ 235,851 | $ 237,011
Capital lease obligations | 4,141 | 4,101
Other borrowings | 234 | 272
Debt obligations | 240,226 | 241,384
Fair Value [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Revolving credit facility | 235,851 | 237,011
Capital lease obligations | 4,141 | 4,101
Other borrowings | 234 | 272
Debt obligations | $ 240,226 | $ 241,384

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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/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13433-108611 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13476-108611 + 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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