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Schedule of Goodwill and Changes to Goodwill by Reportable Segment (Parenthetical) (Detail) - USD ($)
$ in Millions
Jun. 30, 2015
Jun. 30, 2014
Goodwill [Line Items]    
Accumulated impairment charges $ 370.9  
Middle East/North Africa    
Goodwill [Line Items]    
Accumulated impairment charges   $ 30.9
Asia/Pacific    
Goodwill [Line Items]    
Accumulated impairment charges   $ 56.3