Business Segment Information (Net Sales To Major Customers) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Revenue, Major Customer [Line Items]
Net sales	$ 1,467,067	$ 1,334,388	$ 1,307,787
Retail [Member]
Revenue, Major Customer [Line Items]
Net sales	828,963	714,127	656,621
Retail [Member] | Walmart Inc. [Member]
Revenue, Major Customer [Line Items]
Net sales	$ 267,090	$ 241,699	$ 222,171
Retail [Member] | Customer Concentration Risk [Member] | Walmart Inc. [Member] | Revenue Benchmark
Revenue, Major Customer [Line Items]
Net sales as a percentage of consolidated net sales	18.00%	18.00%	17.00%
Foodservice [Member]
Revenue, Major Customer [Line Items]
Net sales	$ 638,104	$ 620,261	$ 651,166
Foodservice [Member] | McLane Company Inc [Member]
Revenue, Major Customer [Line Items]
Net sales	$ 184,021	$ 174,242	$ 195,907
Foodservice [Member] | Customer Concentration Risk [Member] | McLane Company Inc [Member] | Revenue Benchmark
Revenue, Major Customer [Line Items]
Net sales as a percentage of consolidated net sales	13.00%	13.00%	15.00%