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Commitments and Contingencies (Litigation and Other Matters - Text) (Details) $ in Millions |  | 12 Months Ended
--- | --- | ---
Oct. 04, 2013 USD ($) subsidiaries employee | Dec. 27, 2015 USD ($) | Dec. 28, 2014 USD ($) | Dec. 31, 2013 USD ($)
Loss Contingencies [Line Items] |  |  |  |
Litigation settlement expense |  | $ 4.6 | $ 1.2 | $ 0.4
Pending litigation [Member] |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Litigation liability |  | $ 4.5 | $ 1.0 |
Litigation settlement amount | $ 3.2 |  |  |
Employee [Member] | Pending litigation [Member] |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Number of employees party to lawsuit | employee | 2 |  |  |
Subsidiaries [Member] | Pending litigation [Member] |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Loss contingency, number of defendants | subsidiaries | 2 |  |  |

X
- Definition Aggregate carrying amount of the estimated litigation liability for known or estimated probable loss from litigation, which may include attorneys' fees and other litigation costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.25) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of judgment or settlement awarded to (against) the entity in respect of litigation. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- 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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X
- Definition Number of defendants named in a legal action. + References No definition available. + Details
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X
- Definition Number of plaintiffs that have filed claims pertaining to a loss contingency. + References No definition available. + Details
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Data Type: | xbrli:integerItemType
Balance Type: | na
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X
- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

X
- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

X
- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |