Income Taxes - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
Sep. 30, 2012	Sep. 30, 2011	Jun. 30, 2012
Income Tax Contingency [Line Items]
Cumulative undistributed earnings attributable to international operations	$ 432.4	$ 350.2
Effective tax rate	29.10%	27.90%
Total amount of gross unrecognized tax benefits for uncertain tax positions, including positions impacting timing of tax benefits	23.0	8.9
Amount of unrecognized tax benefits that, if recognized, would impact effective tax rate	23.0	8.9
Total amount of interest and penalties accrued	$ 2.2		$ 1.9
Medical and Healthcare
Income Tax Contingency [Line Items]
Income tax holiday termination year	2043
Veterinary school
Income Tax Contingency [Line Items]
Income tax holiday termination year	2023

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

+ References+ Details

This element represents the total of accruals as of the date of the statement of financial position for interest recognized for an underpayment of income taxes computed by applying the applicable statutory rate of interest to the difference between a tax position recognized for financial reporting purposes and the amount previously taken or expected to be taken in a tax return of the entity and the amount of statutory penalties for a tax position claimed or expected to be claimed by the entity, in its tax return, that does not meet the minimum statutory threshold to avoid payment of penalties.

+ References+ Details