Income Taxes (Schedule Of Principal Items Comprising Deferred Income Taxes) (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Jun. 30, 2011
Significant Components Of Deferred Income Tax Expense [Line Items]
Inventory capitalization	$ 6,328	$ 4,297
Non-deductible accruals	1,755	1,583
Accrued employee benefits	6,364	6,163
Net-operating loss and credit carryforwards	10,079	3,619
Share-based compensation expense	11,534	9,092
Other	563	269
Valuation allowances	(846)	(896)
Total deferred income tax assets	35,777	24,127
Tax over book accumulated depreciation	(14,166)	(12,113)
Intangible assets	(13,907)	(8,872)
Other	(2,855)	(1,706)
Total deferred income tax liabilities	(30,928)	(22,691)
Net deferred income taxes	$ 4,849	$ 1,436