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Financial Instruments and Derivative Financial Instruments - Additional Information (Detail)
$ in Thousands
Mar. 31, 2017
USD ($)
ForwardContract
Mar. 31, 2016
USD ($)
ForwardContract
Concentration Risk [Line Items]    
Letters of credit outstanding amount | $ $ 8,372 $ 11,982
Foreign Exchange [Member]    
Concentration Risk [Line Items]    
Number of foreign exchange contracts held by the company | ForwardContract 0 0