Discontinued Operations - Schedule of Discontinued Operations (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013	Mar. 31, 2012
Net Revenues:
Net revenues	$ 318	$ 8,912	$ 9,831	$ 26,184
Earnings (loss) before income taxes:
Earnings (loss) before income taxes	(44)	210	529	1,269
Gain on Sale
Gain on Sale	65	0	9,618	0
Income tax expense	10	69	4,608	478
Earnings from discontinued operations	11	141	5,539	791
Dexter [Member]
Net Revenues:
Net revenues	264	5,396	9,772	15,412
Earnings (loss) before income taxes:
Earnings (loss) before income taxes	(38)	746	717	2,028
Gain on Sale
Gain on Sale	65	0	8,457	0
Memorial [Member]
Net Revenues:
Net revenues	54	3,516	59	10,772
Earnings (loss) before income taxes:
Earnings (loss) before income taxes	28	(514)	(86)	(693)
Gain on Sale
Gain on Sale	0	0	1,161	0
Life Sciences and Engineering [Member]
Earnings (loss) before income taxes:
Earnings (loss) before income taxes	$ (34)	$ (22)	$ (102)	$ (66)

Amount of gain (loss), before tax expense or benefit and not previously recognized, resulting from the sale of a business component.

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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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- Definition

Amount of income (loss) from a disposal group, net of income tax, reported as a separate component of income before extraordinary items after deduction or consideration of the amount 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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