Debt (Schedule Of Debt) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Jun. 30, 2017
Debt [Abstract]
Short-term debt	$ 1,020,000
Deferred borrowing costs	(868)
Short-term debt, net	1,019,132
Long-term debt		$ 1,080,000
Deferred borrowing costs		(1,389)
Long-term debt, net		1,078,611
Total debt	$ 1,019,132	$ 1,078,611