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Basis of Presentation - Additional Information (Detail) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2017 | Dec. 31, 2016
Basis Of Presentation [Line Items] |  |  |  |
Net gain (loss) on foreign currency transactions | $ (200,000) | $ (100,000) | $ (500,000) |
Maximum [Member] |  |  |  |
Basis Of Presentation [Line Items] |  |  |  |
Net gain (loss) on foreign currency transactions |  |  |  | $ (100,000)

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- Definition Foreign currency transaction realized and unrealized gain (loss) net of tax. + References No definition available. + Details
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- Details
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