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Segment, Customers, and Geographic Information - Major Customers' as Percentage of Net Revenue (Parenthetical) (Detail) (Customer B [Member], Sales Revenue, Net [Member])
3 Months Ended
Sep. 30, 2013
Sep. 30, 2014
Maximum [Member]
Revenue, Major Customer [Line Items]    
Percentage of net revenue 10.00% 10.00%