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Segment, Customers, and Geographic Information - Major Customers as Percentage of Net Revenue (Detail) - Sales Revenue, Net [Member] - Customer Concentration Risk [Member]	3 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Customer A [Member]
Revenue, Major Customer [Line Items]
Concentration Risk, Percentage	17.00%	18.00%
Customer B [Member]
Revenue, Major Customer [Line Items]
Concentration Risk, Percentage	11.00%
Customer C [Member]
Revenue, Major Customer [Line Items]
Concentration Risk, Percentage		13.00%
Customer D [Member]
Revenue, Major Customer [Line Items]
Concentration Risk, Percentage		11.00%

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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