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Goodwill (Details) (MWM Acoustics [Member], Lifestyle [Member], USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
	Mar. 31, 2012	Mar. 31, 2012
MWM Acoustics [Member] \| Lifestyle [Member]
Goodwill [Line Items]
Increase in goodwill	$ 0	$ 79.8

The change during the reporting period in the carrying value of goodwill. The change could be the result of new goodwill acquired, goodwill impairment during the period, goodwill written off related to the sale of a business or other adjustments to goodwill.

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