Business Segment Information (Disaggregation Of Foodservice Net Sales By Type Of Customer) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Disaggregation of Revenue [Line Items]
Total net sales	$ 355,117	$ 349,581	$ 692,171	$ 666,235
Foodservice [Member]
Disaggregation of Revenue [Line Items]
Total net sales	168,907	163,279	339,884	317,185
Foodservice [Member] | National accounts [Member]
Disaggregation of Revenue [Line Items]
Total net sales	122,050	120,652	245,808	236,227
Foodservice [Member] | Branded and other [Member]
Disaggregation of Revenue [Line Items]
Total net sales	40,517	38,791	79,886	77,122
Foodservice [Member] | Other roll products [Member]
Disaggregation of Revenue [Line Items]
Total net sales	$ 6,340	$ 3,836	$ 14,190	$ 3,836