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SCHEDULE II (Valuation and Qualifying Accounts and Reserves) (Parenthetical) (Detail) - USD ($)
$ in Millions
12 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Valuation and Qualifying Accounts Disclosure [Line Items]    
Valuation Allowances and Reserves, Additions for Adjustments $ 2.9 $ 1.6
Valuation Allowances and Reserves, Deductions $ 4.9