Provision for Income Taxes Differs from Amount Computed Using Statutory United States Federal Income Tax Rate (Detail)	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Reconciliation of Statutory Federal Tax Rate [Line Items]
Statutory federal income tax rate	35.00%	35.00%	35.00%
State income taxes, net of federal benefit	3.10%	3.20%	2.90%
Domestic manufacturer's deduction	(6.40%)	(4.10%)	(3.60%)
Federal research and development tax credits	(6.70%)	(1.50%)	(2.00%)
Permanent items and other	3.50%	0.20%	0.40%
Change in income tax contingencies	(4.30%)	(0.70%)	(0.20%)
Foreign losses without benefit	2.70%	3.20%	2.00%
Non-deductible foreign interest expense	2.10%
Effective income tax rate	29.00%	35.30%	34.50%