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ACQUISITIONS - Major Classes of Acquired Intangible Assets Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Aug. 25, 2014
Sep. 26, 2015
Sep. 26, 2015
Dec. 27, 2014
Business Acquisition [Line Items]        
Goodwill   $ 362,683 $ 362,683 $ 385,111
Agsense Llc        
Business Acquisition [Line Items]        
Ownership percentage acquired 51.00%      
Cash paid to acquire business $ 17,000      
Goodwill 17,193      
Customer relationships, trade name and other intangible assets $ 16,083      
Series of Individually Immaterial Business Acquisitions        
Business Acquisition [Line Items]        
Net sales   45,201 131,396  
Net earnings   $ 2,333 $ 7,266