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Summary of Amounts of Interest and Penalties Recognized in Relation to Uncertain Tax Position (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Mar. 31, 2015 | Mar. 31, 2014
Income Tax Disclosure [Abstract] |  |
Accrued interest recognized | $ (3,847) | $ 641
Accrued penalties recognized | $ (6,475) | $ 213

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- Definition Unrecognized tax benefits interest on income taxes expense (benefit). + References No definition available. + Details
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- References No definition available. + Details
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