Employee Benefit Plans Employee Benefit Plans Narrative 3 (Details) (USD $)	12 Months Ended
	Jan. 03, 2015 plan	Dec. 28, 2013	Dec. 29, 2012	Jan. 03, 2009
Employee Benefit Plans [Abstract]
Number of Multiemployer Plans, Certified Red Zone	4
Number Of Multiemployer Plans, Withdrawal Obligation Could Be Material	2
Number of Multiemployer Plans, Certified Yellow Zone	2
Number of Multiemployer Plans, Certified Orange Zone	1
Contributions	$ 3,302,000	$ 3,149,000	$ 3,200,000
Multiemployer Plan, Withdrawal Obligation	$ 800,000	$ 1,200,000		$ 3,200,000