Income Taxes (Schedule Of Taxes Based On Income) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Currently payable, Federal	$ 23,392	$ 30,220	$ 40,766
Currently payable, State and local	6,808	8,070	7,355
Total current provision	30,200	38,290	48,121
Deferred federal, state and local provision (benefit)	11,894	6,703	(9,232)
Total taxes based on income	$ 42,094	$ 44,993	$ 38,889