Summary of Preliminary Estimated Fair Values of Assets Acquired and Liabilities Assumed (Detail) (USD $) In Millions, unless otherwise specified	Jun. 30, 2013		Jun. 30, 2012		Jan. 12, 2012
Business Combinations [Abstract]
Accounts receivable	$ 1.5		$ 8.8
Inventory	1.5		18.9
Property, plant and equipment	2.0		12.0
Goodwill	5.2	[1]	54.3	[1]
Other intangible assets	4.0		102.4
Other current and long-term assets	0.1		0.6
Current and long-term liabilities	(4.3)		(7.3)
Additional consideration for prior years’ acquisitions	0.1		0.1
Net cash consideration	$ 10.1		$ 189.8		$ 188.0

[1] Goodwill associated with the 2013 acquisition is not expected to provide an income tax benefit. Goodwill associated with the 2012 acquisitions is expected to provide an income tax benefit.