Debt (Schedule Of Debt) (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Jun. 30, 2020
Debt [Abstract]
Short-term debt	$ 12,000	$ 12,000
Deferred borrowing costs	(10)	(13)
Short-term debt, net	11,990	11,987
Long-term debt	722,000	1,168,000
Deferred borrowing costs	(2,954)	(3,867)
Long-term debt, net	719,046	1,164,133
Total debt	$ 731,036	$ 1,176,120