Income Tax Provisions Computed using Statutory U.S. Federal Rate (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Reconciliation of Statutory Federal Tax Rate [Line Items]
Income Tax at Statutory Rate	$ 72,148	$ 173,051	$ 144,418
Lower Rates on Foreign Operations	(27,480)	(22,413)	(22,524)
State Income Taxes	7,827	16,762	13,129
Stock Options	838	481	(164)
Nondeductible Goodwill	14,182
Tax Credits and Other	(3,758)	(4,279)	(2,220)
Income Tax Provision	$ 63,757	$ 163,602	$ 132,639
Income Tax at Statutory Rate	35.00%	35.00%	35.00%
Lower Rates on Foreign Operations	(13.30%)	(4.50%)	(5.50%)
State Income Taxes	3.80%	3.40%	3.10%
Stock Options	0.40%	0.10%	0.00%
Nondeductible Goodwill	6.80%
Tax Credits and Other	(1.80%)	(0.90%)	(0.50%)
Income Tax Provision	30.90%	33.10%	32.10%