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Summary of Significant Accounting Policies - Property, Plant and Equipment Estimated Useful Lives (Detail) | 12 Months Ended
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Mar. 31, 2015
Buildings [Member] |
Property, Plant and Equipment [Line Items] |
Property, plant and equipment useful life | 40 years
Minimum [Member] | Building Improvements [Member] |
Property, Plant and Equipment [Line Items] |
Property, plant and equipment useful life | 5 years
Minimum [Member] | Manufacturing Machinery [Member] |
Property, Plant and Equipment [Line Items] |
Property, plant and equipment useful life | 10 years
Minimum [Member] | General Equipment [Member] |
Property, Plant and Equipment [Line Items] |
Property, plant and equipment useful life | 5 years
Minimum [Member] | Computer Equipment, Software, and Software Development [Member] |
Property, Plant and Equipment [Line Items] |
Property, plant and equipment useful life | 3 years
Minimum [Member] | Office Furniture and Equipment [Member] |
Property, Plant and Equipment [Line Items] |
Property, plant and equipment useful life | 3 years
Maximum [Member] | Building Improvements [Member] |
Property, Plant and Equipment [Line Items] |
Property, plant and equipment useful life | 40 years
Maximum [Member] | Manufacturing Machinery [Member] |
Property, Plant and Equipment [Line Items] |
Property, plant and equipment useful life | 20 years
Maximum [Member] | General Equipment [Member] |
Property, Plant and Equipment [Line Items] |
Property, plant and equipment useful life | 10 years
Maximum [Member] | Computer Equipment, Software, and Software Development [Member] |
Property, Plant and Equipment [Line Items] |
Property, plant and equipment useful life | 7 years
Maximum [Member] | Office Furniture and Equipment [Member] |
Property, Plant and Equipment [Line Items] |
Property, plant and equipment useful life | 10 years

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- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
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