Income Taxes Summary - Uncertain Tax Positions (Details) - USD ($) $ in Millions	Dec. 30, 2016	Dec. 25, 2015
Income Taxes
Liability for uncertain tax positions and accrued interest	$ 8.0	$ 38.5
Accrued interest and penalties related to uncertain tax positions	$ 2.6	$ 3.0

Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32718-109319

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