Business Segment Information (Disaggregation Of Foodservice Net Sales By Type Of Customer) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018
Disaggregation of Revenue [Line Items]
Total net sales	$ 317,882	$ 296,174	$ 984,117	$ 914,755
Foodservice [Member]
Disaggregation of Revenue [Line Items]
Total net sales	164,844	144,163	482,029	421,314
Foodservice [Member] | National accounts [Member]
Disaggregation of Revenue [Line Items]
Total net sales	119,875	108,406	356,102	314,180
Foodservice [Member] | Branded and other [Member]
Disaggregation of Revenue [Line Items]
Total net sales	37,101	35,757	114,223	107,134
Foodservice [Member] | Other roll products [Member]
Disaggregation of Revenue [Line Items]
Total net sales	$ 7,868	$ 0	$ 11,704	$ 0