Income Taxes - Schedule of Tax Provisions and Analysis of Effective Income Tax Rates (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Income Tax Disclosure [Abstract]
Provision for Federal income taxes before credits at statutory rate	$ 60,995	$ 91,404	$ 56,077
State income taxes	986	2,124	623
Difference between Federal statutory rate and foreign effective rate	(33,209)	(22,240)	(16,688)
Expenses not deductible for tax purposes and other	4,000	12,444	1,703
Tax benefit from U.S. production activities	(3,879)	(3,704)	(1,581)
Change in valuation allowance	2,874	(124,211)	166
Change in uncertain tax positions	5,035	(1,937)	7,206
Deferred tax true-up	0	0	(3,703)
Difference between Federal and financial tax accounting for equity compensation	2,053	896	494
Federal income tax credits	(7,592)	(22,144)	(18,024)
Other	466	(1,020)	(1,969)
Income tax expense (benefit), net	$ 31,729	$ (68,388)	$ 24,304