Summary of Revenues and Earnings (Losses) of Discontinued Operation (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Sep. 30, 2013
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Earnings from discontinued operation, net of taxes	$ 2
Tellurium product line
Disposal Group, Including Discontinued Operation, Income Statement Disclosures
Revenues	1,152
Earnings from discontinued operation before income taxes	2
Income tax benefit (expense)	0
Earnings from discontinued operation, net of taxes	$ 2

Overall income (loss) from a disposal group that is classified as a component of the entity, before income tax, reported as a separate component of income before extraordinary items. Includes the following (before income tax): income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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Tax effect allocated to a disposal group that is classified as a component of the entity reported as a separate component of income before extraordinary items. Includes the tax effects of the following: income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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- Definition

Amount of income (loss) from a disposal group, net of income tax before extraordinary items allocable to noncontrolling interests. Includes, net of tax, income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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