Income Taxes - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Jun. 30, 2013
Income Tax Contingency [Line Items]
Cumulative undistributed earnings attributable to international operations	$ 542.7	$ 432.4
Effective tax rate	17.30%	29.90%
Total amount of gross unrecognized tax benefits for uncertain tax positions, including positions impacting timing of tax benefits	9.2
Amount of unrecognized tax benefits that, if recognized, would impact effective tax rate		23
Total amount of interest and penalties accrued	$ 1.3		$ 1.2