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Product Warranties, Indemnifications, Contingencies and Legal Proceedings - Additional Information (Detail) ¥ in Millions, $ in Millions | 9 Months Ended |
--- | --- | ---
Mar. 31, 2016 USD ($) | Sep. 30, 2015 JPY (¥)
Product Warranties Indemnifications Contingencies And Legal Proceedings [Line Items] |  |
Minimum warranty period of products | 12 months |
Contingent consideration liabilities recorded for business combinations | $ | $ 25.5 |
IIX Inc [Member] |  |
Product Warranties Indemnifications Contingencies And Legal Proceedings [Line Items] |  |
Indemnification Holdback Liability Non-current | ¥ |  | ¥ 648

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