Income Taxes - Schedule of Deferred Taxes (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Income Tax Disclosure [Abstract]
Federal and state tax credits	$ 90,176	$ 112,937
Deferred interest and loss carryforwards	74,845	77,522
Inventory costing differences	13,935	10,076
Capitalized research and development	91,644	106,935
Fixed assets	0	9,261
Amortization of share-based compensation	13,525	15,440
Pension liability and other	46,934	42,795
Financial instruments	4,688	0
Reserves and other	54,507	35,814
Deferred tax assets, gross	390,254	410,780
Less valuation allowance	(65,462)	(63,947)
Deferred tax assets, net of valuation allowance	324,792	346,833
Fixed assets	(2,140)	0
Intangible assets	(51,922)	(6,843)
Financial instruments	0	(2,965)
Deferred tax liability, gross	(54,062)	(9,808)
Net deferred tax asset	$ 270,730	$ 337,025