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Schedule of Earning Before Income Taxes Derived from United States and Non-U.S Operation (Detail) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Mar. 31, 2014
Income Tax Disclosure [Abstract]      
Earnings before income taxes, Non-U.S $ (85,346) $ (38,282) $ 217,816
Earnings before income taxes, United States (54,211) (27,985) (44,768)
Total pre-tax amounts $ (139,557) $ (66,267) $ 173,048