Summary Of Significant Accounting Policies (Schedule Of Basic And Diluted Net Income Per Common Share Calculations) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended																12 Months Ended
	Jun. 30, 2020	[1],[2]	Mar. 31, 2020	[1],[2]	Dec. 31, 2019	[1]	Sep. 30, 2019	[1],[3]	Jun. 30, 2019	[4],[5]	Mar. 31, 2019		Dec. 31, 2018	[5]	Sep. 30, 2018		Jun. 30, 2020		Jun. 30, 2019		Jun. 30, 2018
Accounting Policies [Abstract]
Net income	$ 30,385		$ 22,429		$ 43,424		$ 40,745		$ 33,010		$ 30,604		$ 47,907		$ 39,028		$ 136,983	[1],[2],[3]	$ 150,549	[4],[5]	$ 135,314
Net income available to participating securities																	(278)		(259)		(271)
Net income available to common shareholders																	$ 136,705		$ 150,290		$ 135,043
Weighted average common shares outstanding - basic (in shares)																	27,448		27,438		27,403
Incremental share effect from:
Nonparticipating restricted stock (in shares)																	2		2		3
Stock-settled stock appreciation rights (in shares)																	46		97		53
Weighted average common shares outstanding - diluted (in shares)																	27,496		27,537		27,459
Net income per common share - basic (in dollars per share)																	$ 4.98		$ 5.48		$ 4.93
Net income per common share - diluted (in dollars per share)	$ 1.10	[6]	$ 0.81	[6]	$ 1.58	[6]	$ 1.48	[6]	$ 1.20	[6]	$ 1.11	[6]	$ 1.73	[6]	$ 1.42	[6]	$ 4.97	[1],[2],[3],[6]	$ 5.46	[4],[5],[6]	$ 4.92

[1] Included in net income were after-tax expenditures for Project Ascent of $2.1 million in the first quarter, or approximately $0.08 per diluted share; $3.7 million in the second quarter, or approximately $0.14 per diluted share; $3.7 million in the third quarter, or approximately $0.13 per diluted share; and $4.2 million in the fourth quarter, or approximately $0.15 per diluted share. The after-tax expense for the fiscal year was $13.7 million, or approximately $0.50 per diluted share.

[2] Included in the third quarter and fourth quarter net income were after-tax expenses totaling $4.2 million and $3.5 million, respectively, or approximately $0.15 and $0.13 per diluted share, respectively, related to certain costs attributed to the impacts of COVID-19, including the temporary increase in pay for our front-line employees, the fourth quarter write-off of engineering costs for a canceled dressing plant expansion project and changes in the Foodservice inventory reserve. The after-tax expense for the fiscal year was $7.7 million, or approximately $0.28 per diluted share.

[3] Included in the first quarter and fiscal year net income were after-tax restructuring and impairment charges of $0.7 million, or approximately $0.02 per diluted share.

[4] Included in the fourth quarter and fiscal year net income were after-tax expenditures for Project Ascent of $1.4 million, or approximately $0.05 per diluted share, and after-tax restructuring and impairment charges of $1.3 million, or approximately $0.05 per diluted share.

[5] Included in the second quarter and fourth quarter net income was an after-tax benefit of $7.4 million and $5.7 million, respectively, or approximately $0.27 and $0.21 per diluted share, respectively, related to the reduction in the fair value of Angelic’s contingent consideration liability. The after-tax benefit for the fiscal year was $13.1 million, or approximately $0.48 per diluted share.

[6] Diluted net income per common share amounts are calculated independently for each of the quarters presented. Accordingly, the sum of the quarterly net income per common share amounts may not agree with the fiscal year.