Discontinued Operations - Additional Information (Detail) (TPOS, USD $) In Millions	3 Months Ended
Sep. 30, 2010
TPOS
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Pre-tax goodwill impairment	$ 2.2
After-tax goodwill impairment	$ 1.5

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