Federal and State Income Taxes - Effective Income Tax Rate (Details)	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
U.S. federal statutory income tax rate	35.00%	35.00%	35.00%
State income taxes, net of federal benefit	5.10%	6.60%	7.10%
Foreign income taxes	(0.20%)	0.20%	0.00%
Valuation allowance	0.00%	(140.20%)	(46.70%)
Recognition of uncertain tax positions	(0.10%)	0.70%	(11.10%)
Expiration of capital loss	0.00%	0.00%	3.10%
Other, net	2.20%	(0.60%)	(0.70%)
Effective income tax rate	42.00%	(98.30%)	(13.30%)