Debt (Schedule Of Debt) (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Jun. 30, 2019
Debt [Abstract]
Short-term debt	$ 12,009	$ 12,012
Deferred borrowing costs	(17)	(20)
Short-term debt, net	11,992	11,992
Long-term debt	1,213,000	1,262,000
Deferred borrowing costs	(4,790)	(3,139)
Long-term debt, net	1,208,210	1,258,861
Total debt	$ 1,220,202	$ 1,270,853