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Discontinued Operations (Narrative) (Detail) (USD $)	12 Months Ended
Discontinued Operations (Narrative) (Detail) (USD $)	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sales price			$ 200,000,000
Gain on sale of business or discontinued operation			152,700,000
Gain on sale of discontinued operations, net of income taxes	0	0	114,197,000
Working capital adjustment			100,000
Tax expense on previously permanently			$ 35,400,000

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

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