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Business Segment Information (Disaggregation Of Foodservice Net Sales By Type Of Customer) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Disaggregation of Revenue [Line Items]        
Total net sales $ 349,581 $ 319,665 $ 666,235 $ 618,581
Foodservice [Member]        
Disaggregation of Revenue [Line Items]        
Total net sales 163,279 140,379 317,185 277,151
Foodservice [Member] | National accounts [Member]        
Disaggregation of Revenue [Line Items]        
Total net sales 120,652 105,362 236,227 205,774
Foodservice [Member] | Branded and other [Member]        
Disaggregation of Revenue [Line Items]        
Total net sales 38,791 35,017 77,122 71,377
Foodservice [Member] | Other roll products [Member]        
Disaggregation of Revenue [Line Items]        
Total net sales $ 3,836 $ 0 $ 3,836 $ 0