Business Segment Information (Disaggregation Of Net Sales By Class Of Similar Products) (Details) - USD ($) $ in Thousands		3 Months Ended								12 Months Ended
		Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2019		Jun. 30, 2018		Jun. 30, 2017
Segment Reporting Information [Line Items]
Net sales		$ 323,670	$ 317,882	$ 349,581	$ 316,654	$ 308,170	$ 296,174	$ 319,665	$ 298,916	$ 1,307,787	[1],[2]	$ 1,222,925	[1],[2]	$ 1,201,842	[1],[2]
Retail [Member]
Segment Reporting Information [Line Items]
Net sales	[1],[2]									656,621		650,234		641,417
Foodservice [Member]
Segment Reporting Information [Line Items]
Net sales	[1],[2]									651,166		572,691		560,425
Frozen breads [Member] | Retail [Member]
Segment Reporting Information [Line Items]
Net sales										259,290		252,186		253,965
Refrigerated dressings, dips and other [Member] | Retail [Member]
Segment Reporting Information [Line Items]
Net sales										219,614		226,276		221,422
Shelf-stable dressings and croutons [Member] | Retail [Member]
Segment Reporting Information [Line Items]
Net sales										177,717		171,772		166,030
Dressings and sauces [Member] | Foodservice [Member]
Segment Reporting Information [Line Items]
Net sales										467,364		430,944		427,017
Frozen breads and other [Member] | Foodservice [Member]
Segment Reporting Information [Line Items]
Net sales										164,438		141,747		133,408
Other roll products [Member] | Foodservice [Member]
Segment Reporting Information [Line Items]
Net sales										$ 19,364		$ 0		$ 0

[1] All intercompany transactions have been eliminated.

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