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Condensed Consolidated Financial Statements (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 24, 2016	Jun. 25, 2016	Dec. 24, 2016	Dec. 26, 2015
Loss Contingencies [Line Items]
Liability for anticipated lease defaults			$ 0.7	$ 0.4
Sales [Member]
Loss Contingencies [Line Items]
Reclassification adjustment	$ (2.7)	$ (1.6)
Cost of Sales [Member]
Loss Contingencies [Line Items]
Reclassification adjustment	$ 2.7	$ 1.6
Property Lease Guarantee [Member]
Loss Contingencies [Line Items]
Maximum potential guarantee payments			$ 8.5

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- Definition

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Amount of loss contingency liability expected to be resolved after one year or beyond 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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- Definition

The estimated maximum amount of possible loss from the contingency.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
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-Section 50
-Paragraph 9
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-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14557-108349

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The amount of a reclassification adjustment made to prior period financial statement amounts.

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