Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Property, Plant and Equipment - Additional Information (Detail)

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Property, Plant and Equipment - Additional Information (Detail) - USD ($)
 12 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Mar. 31, 2014
Property, Plant and Equipment [Line Items]      
Depreciation expense $ 76,300,000 $ 70,200,000 $ 61,300,000
Restricted assets value of property, plant and equipment 1,200,000 1,300,000  
Cost of Goods Sold [Member]      
Property, Plant and Equipment [Line Items]      
Asset impairment charges $ 3,500,000 $ 3,700,000 $ 0