Business Segment Information (Segment Net Sales By Class Of Similar Products) (Details) - USD ($) $ in Thousands		3 Months Ended								12 Months Ended
		Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2018		Jun. 30, 2017		Jun. 30, 2016
Segment Reporting Information [Line Items]
Net sales		$ 308,170	$ 296,174	$ 319,665	$ 298,916	$ 289,874	$ 293,834	$ 326,773	$ 291,361	$ 1,222,925	[1],[2]	$ 1,201,842	[1],[2]	$ 1,191,109	[1],[2]
Retail [Member]
Segment Reporting Information [Line Items]
Net sales	[1],[2]									650,234		641,417		619,384
Foodservice [Member]
Segment Reporting Information [Line Items]
Net sales	[1],[2]									572,691		560,425		571,725
Frozen breads [Member] | Retail [Member]
Segment Reporting Information [Line Items]
Net sales										252,186		253,965		240,799
Refrigerated dressings, dips and other [Member] | Retail [Member]
Segment Reporting Information [Line Items]
Net sales										226,276		221,422		212,640
Shelf-stable dressings and croutons [Member] | Retail [Member]
Segment Reporting Information [Line Items]
Net sales										171,772		166,030		165,945
Dressings and sauces [Member] | Foodservice [Member]
Segment Reporting Information [Line Items]
Net sales										430,944		427,017		435,747
Frozen breads and other [Member] | Foodservice [Member]
Segment Reporting Information [Line Items]
Net sales										$ 141,747		$ 133,408		$ 135,978

[1] All intercompany transactions have been eliminated.

[2] Net sales and long-lived assets are predominately domestic.