Quarterly Financial Information - Additional Information (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended					12 Months Ended			3 Months Ended
	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011	Sep. 30, 2011 Separation-related charges	Sep. 30, 2011 Facility closing	Mar. 31, 2013 Lapse Of Statutes Of Limitations	Jun. 30, 2013 Valuation Allowance U S And Foreign Deferred Tax Asset	Jun. 30, 2013 Federal Income Tax	Jun. 30, 2013 Other Discrete Tax Items	Jun. 30, 2013 Us Federal Research and Development Tax Credit	Jun. 30, 2012 Mexico Receivables	Sep. 30, 2011 Mexico Receivables
Quarterly Financial Information [Line Items]
Impairment and Restructuring Charges, pre-tax amounts			$ 2.5		$ 14.0		$ 9.7	$ 22.2	$ 5.9	$ 3.8
Impairment and restructuring charges, per diluted share			$ 0.03		$ 0.17		$ 0.12	$ 0.24
Discrete tax item, after-tax impact		2.0	2.0			(19.5)	(1.0)	(13.1)						0.7
Discrete tax item, per diluted share		$ 0.04	$ 0.04											$ 0.01
Acquisition costs, pre-tax amounts	3.6	7.4				13.5
Acquisition costs, per diluted share	$ 0.04	$ 0.09
After-tax benefit from the reduction of liability of uncertain taxes due to the expiration of the statute of limitations											0.7		1.5
After-tax benefit from the reduction of liability of uncertain taxes due to the expiration of the statute of limitations per diluted share											$ 0.01	$ 0.02	$ 0.03		$ 0.01
After-tax charge												1.3
After-tax charge															0.6
Non-cash impairment and restructuring charges, Pre-tax amounts					9.7		0.6	18.4
Non-cash impairment and restructuring charges, per diluted share					$ 0.12
Non-cash asset impairments							0.6	4.0									4.3
Non-cash asset impairments, per diluted share							$ 0.01	$ 0.05									$ 0.05
Cash proceeds of litigation settlement, pre-tax amounts				2.1	2.1
Cash proceeds of litigation settlement, per diluted share				$ 0.02	$ 0.01
Decrease in reserve for customer receivables						$ 3.6										$ 0.7
Decrease in reserve for customer receivables, per diluted share																$ 0.01