Income Taxes Effective Tax Rate Reconciliation (Details)	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Computed expected tax expense	35.00%	35.00%	35.00%
State income taxes, net of federal income tax benefits	2.80%	2.20%	2.20%
Research and development credit	(0.80%)	(3.50%)	(1.80%)
Domestic production activities deduction	(2.20%)	(2.30%)	(2.20%)
Other reconciling items (net)	0.30%	0.20%	(0.20%)
Effective Income Tax Rate Continuing Operations, percent	35.10%	31.60%	33.00%