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Summary of Significant Accounting Policies - Estimated Useful Lives of Assets (Detail) | 12 Months Ended
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Dec. 31, 2014
Minimum [Member] | Building and improvements [Member] |
Property, Plant and Equipment [Line Items] |
Property, Plant and Equipment, Useful Life | 3 years
Minimum [Member] | Machinery and equipment [Member] |
Property, Plant and Equipment [Line Items] |
Property, Plant and Equipment, Useful Life | 3 years
Minimum [Member] | Furniture and fixtures [Member] |
Property, Plant and Equipment [Line Items] |
Property, Plant and Equipment, Useful Life | 3 years
Maximum [Member] | Building and improvements [Member] |
Property, Plant and Equipment [Line Items] |
Property, Plant and Equipment, Useful Life | 20 years
Maximum [Member] | Machinery and equipment [Member] |
Property, Plant and Equipment [Line Items] |
Property, Plant and Equipment, Useful Life | 10 years
Maximum [Member] | Furniture and fixtures [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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