Business Segment Information (Disaggregation Of Foodservice Net Sales By Type Of Customer) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Disaggregation of Revenue [Line Items]
Total net sales	$ 357,249	$ 321,363	$ 1,081,501	$ 1,013,534
Foodservice [Member]
Disaggregation of Revenue [Line Items]
Total net sales	158,891	151,949	466,848	491,833
Foodservice [Member] | National accounts [Member]
Disaggregation of Revenue [Line Items]
Total net sales	124,323	110,384	359,228	356,192
Foodservice [Member] | Branded and other [Member]
Disaggregation of Revenue [Line Items]
Total net sales	34,568	36,261	103,913	116,147
Foodservice [Member] | Other roll products [Member]
Disaggregation of Revenue [Line Items]
Total net sales	$ 0	$ 5,304	$ 3,707	$ 19,494