Income Taxes (Schedule of Effective Income Tax Rate Reconciliation) (Details)	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Income Tax Disclosure [Abstract]
U.S. statutory tax rate	21.00%	28.10%	35.00%
State income taxes, less federal income tax benefits	(0.70%)	27.80%	3.00%
Foreign operations	(13.30%)	(74.20%)	0.00%
Rate change	(0.10%)	1312.50%	0.00%
Settlements - audits / tax litigation	(2.50%)	10.40%	(2.30%)
Sale of domestic subsidiary	0.00%	67.30%	0.00%
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Compensation, Percent	3.70%	(176.40%)	0.30%
Other	0.10%	86.90%	(1.10%)
Effective income tax rate	8.20%	1282.40%	34.90%