Income Taxes (Schedule of Income Tax Expense (Benefit)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Currently payable
Federal	$ 62,170	$ 59,173	$ 39,429
State	403	7,263	4,583
Foreign	38	30	35
Current Total	62,611	66,466	44,047
Deferred
Federal	32,961	8,297	36,314
State	5,834	1,507	5,608
Deferred Total	38,795	9,804	41,922
Income Taxes	$ 101,406	$ 76,270	$ 85,969