Share-Based Compensation CEO Inducement Stock Award (Details) - Stock Options [Member] - $ / shares	9 Months Ended
Oct. 01, 2017	Oct. 02, 2016
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Stock options granted (in shares)	142,428	210,633
Grant Date Fair Value (in usd per share)	$ 19.36	$ 11.91

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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