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Derivative Financial Instruments - Effect of Derivative Instruments (Detail) - Not Designated as Hedging Instrument - USD ($) $ in Thousands | 12 Months Ended
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Mar. 31, 2019 | Mar. 31, 2018 | Mar. 31, 2017
Derivatives, Fair Value [Line Items] |  |  |
Gain (Loss) Recognized in Income on Derivatives | $ (1,856) | $ 180 | $ (471)
Other (Income) Expense | Foreign currency forward contracts |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Gain (Loss) Recognized in Income on Derivatives | $ (1,856) | $ 180 | $ (471)

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- Definition Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4CC -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL109998890-113959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959 + Details
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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. + Details
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- Details
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