Discontinued Operations - Summary of Assets and Liabilities of Discontinued Operations (Details) - USD ($) $ in Millions	Dec. 25, 2016	Dec. 27, 2015
Discontinued Operations and Disposal Groups [Abstract]
Accrued compensation	$ 0.6	$ 0.9
Other current liabilities	1.0	1.0
Current liabilities of discontinued operations	1.6	1.9
Other long-term liabilities of discontinued operations	$ 3.7	$ 4.1

Amount classified as other liabilities attributable to disposal group held for sale or disposed of, expected to be disposed of beyond one year or the normal operating cycle, if longer.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=68055307&loc=d3e2510-110228

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=65878427&loc=SL51721533-107759

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-Section 50
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 5: http://www.xbrl.org/2003/role/presentationRef
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant