Intangible Assets Including Goodwill - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	9 Months Ended				9 Months Ended	3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013 Customer Relationships [Member]	Mar. 31, 2013 Other Intangible Assets [Member]	Mar. 31, 2013 Other Intangible Assets [Member]	Jun. 30, 2012 Minimum [Member] Intellectual Property [Member]	Mar. 31, 2013 Minimum [Member] Intellectual Property [Member]	Jun. 30, 2012 Minimum [Member] Customer Relationships [Member]	Mar. 31, 2013 Minimum [Member] Customer Relationships [Member]	Jun. 30, 2012 Minimum [Member] Other Intangible Assets [Member]	Mar. 31, 2013 Minimum [Member] Other Intangible Assets [Member]	Jun. 30, 2012 Maximum [Member] Intellectual Property [Member]	Mar. 31, 2013 Maximum [Member] Intellectual Property [Member]	Jun. 30, 2012 Maximum [Member] Customer Relationships [Member]	Mar. 31, 2013 Maximum [Member] Customer Relationships [Member]	Jun. 30, 2012 Maximum [Member] Other Intangible Assets [Member]	Mar. 31, 2013 Maximum [Member] Other Intangible Assets [Member]
Goodwill and Intangible Assets Disclosure [Abstract]
Impairment charge	$ 25.0
Amortization expense	0	0.3
2013	0.6
2014	0.7
2015	0.7
2016	0.6
2017	0.6
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life						6 years	6 years	1 year	1 year	3 years	3 years	15 years	15 years	15 years	15 years	5 years	5 years
Fair value of amortizing intangible assets			$ 1.6	$ 0.3
Weighted average amortization period of intangible assets			10 years		5 years