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Accrued and Other Current Liabilities (Text) (Details) - Employer's share of FICA taxes [Member] - Internal Revenue Service (IRS) [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 27, 2015	Dec. 28, 2014
Tax year 2010 [Member]
Schedule Of Accrued Liabilities And Other Liabilities Current [Line Items]
Payments for other taxes		$ 5.0
Tax years 2012 and 2011 [Member]
Schedule Of Accrued Liabilities And Other Liabilities Current [Line Items]
Payments for other taxes	$ 6.4
Accrued and other current liabilities [Member]
Schedule Of Accrued Liabilities And Other Liabilities Current [Line Items]
Loss contingency, accrual, current	$ 3.1	$ 12.0

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- Definition

[Line Items] for Schedule Of Accrued Liabilities And Other Liabilities Current [Table]

+ References

No definition available.

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Amount of loss contingency liability expected to be resolved within one year or the normal operating cycle, if longer.

+ 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

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The amount of cash paid during the current period for taxes other than income taxes.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3536-108585

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