Executive Officers' Separation and Hiring Costs (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
Apr. 02, 2016	Jan. 03, 2015
Separation and Hiring Costs [Line Items]
Executive officers' separation and hiring, period costs		$ 2.0
Executive Officer
Separation and Hiring Costs [Line Items]
Executive officers' separation and hiring, period costs	$ 0.1
Executive ocers' separation and hiring, severance liabilities	$ 0.3

Liability for amount due employees, in addition to wages and any other money that employers owe employees, when their employment ends through a layoff or other termination. For example, a company may provide involuntarily terminated employees with a lump sum payment equal to one week's salary for every year of employment.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Other Postemployment Benefits
-URI http://asc.fasb.org/extlink&oid=6519534

Name:	us-gaap_SupplementalUnemploymentBenefitsSeveranceBenefits
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant