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Basis of Presentation - Additional Information (Detail) - USD ($) | 3 Months Ended
--- | ---
Sep. 30, 2016 | Sep. 30, 2015
Basis Of Presentation [Line Items] |  |
Net gain (loss) on foreign currency transactions | $ (100,000) | $ (1,400,000)
Forward Contracts |  |
Basis Of Presentation [Line Items] |  |
Net gain (loss) on foreign currency transactions | 0 | $ 1,700,000
Foreign currency forward contracts outstanding amount | $ 0 |

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