Stockholders’ Equity (Narrative 1) (Details) - shares	9 Months Ended
Oct. 01, 2017	Sep. 25, 2016
Restricted Stock Units (“RSUs”)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants in period (in shares)	1,041,629	0
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants in period (in shares)	516,750	233,775

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration