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Quarterly Financial Information (Unaudited Supplemental Quarterly Financial Information) (Narrative) (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Jan. 01, 2016
Oct. 02, 2015
Apr. 03, 2015
Jan. 01, 2016
Jan. 02, 2015
Dec. 27, 2013
Consolidated Statements of Operations [Abstract]            
Total share based compensation $ 1,300 $ 1,300   $ 10,361 $ 6,370 $ 6,119
Restructuring costs     $ 3,600   3,604  
Bargain purchase gain     $ 3,000   $ 3,015