Debt (Schedule Of Debt) (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Jun. 30, 2019
Debt [Abstract]
Short-term debt	$ 12,000	$ 12,012
Deferred borrowing costs	(13)	(20)
Short-term debt, net	11,987	11,992
Long-term debt	1,369,000	1,262,000
Deferred borrowing costs	(4,151)	(3,139)
Long-term debt, net	1,364,849	1,258,861
Total debt	$ 1,376,836	$ 1,270,853