Employee Benefit Plans Employee Benefit Plans Narrative 3 (Details) $ in Thousands	12 Months Ended
Jan. 02, 2016 USD ($) plan	Jan. 03, 2015 USD ($)	Dec. 28, 2013 USD ($)	Jan. 03, 2009 USD ($)
Employee Benefit Plans [Abstract]
Number of Multiemployer Plans, Certified Red Zone	5
Number Of Multiemployer Plans, Withdrawal Obligation Could Be Material	2
Number of Multiemployer Plans, Certified Yellow Zone	2
Contributions \| $	$ 3,231	$ 3,302	$ 3,149
Multiemployer Plan, Withdrawal Obligation \| $	$ 700	$ 1,200		$ 3,200

Amount of contributions made to multiemployer plans by the employer. A multiemployer plan is a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 80
-Section 50
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=49170332&loc=SL14450702-114947

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 80
-Section 50
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=49170332&loc=SL14450691-114947

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 80
-Section 50
-Paragraph 5
-Subparagraph (e)(1)
-URI http://asc.fasb.org/extlink&oid=49170332&loc=SL14450657-114947

Name:	us-gaap_MultiemployerPlanPeriodContributions
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration