v3.2.0.727
Income Taxes - Effective Income Tax Rate Reconciliation (Detail) - USD ($)
$ in Millions
12 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2013
Income tax reconciliation      
Provision for income taxes at U.S. statutory rate $ 153.6 $ 138.4 $ 113.1
Increase (decrease) in Provision for income taxes from:      
State taxes, net of federal tax 5.8 4.0 4.6
Foreign taxes (5.1) (7.5) (4.3)
Valuation allowances (0.9) (0.7) 1.0
Other (1.6) (1.7) (3.3)
Total Provision for income taxes $ 151.8 $ 132.5 $ 111.1
Tax rate reconciliation (percent)      
Provision for income taxes at U.S. statutory rate 35.00% 35.00% 35.00%
Increase (decrease) in Provision for income taxes from:      
State taxes, net of federal tax 1.30% 1.00% 1.40%
Foreign taxes (1.20%) (1.90%) (1.30%)
Valuation allowances (0.20%) (0.20%) 0.30%
Other (0.30%) (0.40%) (1.00%)
Total Provision for income taxes 34.60% 33.50% 34.40%