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Other Divestitures (not accounted for as discontinued operations) (Narrative) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Oct. 03, 2016
Jan. 01, 2017
Jul. 03, 2016
Jan. 01, 2017
Jan. 03, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Net proceeds from divestitures       $ 231 $ 0
Fox Enterprises Inc          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Total impairment charge on long-lived assets included in the disposal group     $ 800    
Net proceeds from divestitures $ 1,200        
Gain (loss) on divestitures   $ 700