Schedule of Principal Items Comprising Deferred Income Taxes (Detail) - USD ($) $ in Thousands	Jun. 30, 2017	Jun. 30, 2016
Income Tax Disclosure [Abstract]
Inventory capitalization	$ 6,338	$ 6,814
Non-deductible accruals	1,705	2,212
Accrued employee benefits	9,738	15,543
Net-operating loss and credit carryforwards	53,048	43,516
Share-based compensation expense	12,386	11,693
Other	1,761	1,770
Valuation allowances	(42,562)	(42,641)
Total deferred income tax assets	42,414	38,907
Tax over book accumulated depreciation	(7,803)	(9,759)
Intangible assets	(38,108)	(29,628)
Tax on unremitted earnings	(6,210)	(797)
Other	(2,615)	(1,978)
Total deferred income tax liabilities	(54,736)	(42,162)
Net deferred income taxes	$ (12,322)	$ (3,255)