Income Taxes - Additional Information (Detail) (USD $)	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011	Mar. 31, 2013	Jun. 30, 2010
Income Tax Contingency [Line Items]
Net operating loss carryforward expiration date	Jun. 30, 2033
Deferred tax asset, valuation allowances established	$ 6,538,000	$ 7,043,000	$ 6,852,000
Cumulative undistributed earnings attributable to international operations	522,800,000	414,000,000
Effective tax rate	23.80%	29.40%	33.20%
Total amount of gross unrecognized tax benefits for uncertain tax positions, including positions impacting timing of tax benefits	9,000,000	22,000,000	11,900,000		7,100,000
Amount of unrecognized tax benefits that, if recognized, would impact effective tax rate	7,900,000	13,300,000
Expected decrease in unrecognized tax benefits				13,000,000
Total amount of interest and penalties accrued	1,200,000	1,900,000	1,000,000
Interest and penalties accrued recognized	700,000	900,000	300,000
Canada
Income Tax Contingency [Line Items]
Deferred tax asset, valuation allowances established	6,500,000	6,500,000
Certain state
Income Tax Contingency [Line Items]
Deferred tax asset, valuation allowances established		$ 2,900,000
Medical and Healthcare
Income Tax Contingency [Line Items]
Income tax holiday termination year	2037