Schedule II Valuation and Qualifying Accounts (Detail) (Allowance for total accounts and notes receivables, USD $) In Millions, unless otherwise specified	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Allowance for total accounts and notes receivables
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period	$ 6.9	$ 5.5	$ 3.4
Charged to Costs and Expenses	3.6	6.7	3.9
Charged to Other Accounts			1.4
Amounts Written off or Reclassified	1.6	5.3	3.2
Balance at End of Period	$ 8.9	$ 6.9	$ 5.5