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Schedule of Principal Items Comprising Deferred Income Taxes (Detail) - USD ($) $ in Thousands | Jun. 30, 2017 | Jun. 30, 2016
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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)

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