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Summary of Business and Significant Accounting Policies - Schedule of Estimated Useful Lives of Property, Plant, and Equipment (Detail)
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12 Months Ended |
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Dec. 31, 2014
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| Leasehold Improvements |
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| Significant Accounting Policies [Line Items] |
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| Estimated useful life |
Over the shorter of the term of the lease or the useful life of the improvements |
| Minimum | Building |
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| Significant Accounting Policies [Line Items] |
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| Estimated useful life |
20 years |
| Minimum | Machinery and Equipment |
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| Significant Accounting Policies [Line Items] |
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| Estimated useful life |
10 years |
| Minimum | Furniture and Fixtures |
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| Significant Accounting Policies [Line Items] |
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| Estimated useful life |
3 years |
| Minimum | Computer Equipment |
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| Significant Accounting Policies [Line Items] |
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| Estimated useful life |
3 years |
| Maximum | Building |
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| Significant Accounting Policies [Line Items] |
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| Estimated useful life |
40 years |
| Maximum | Machinery and Equipment |
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| Significant Accounting Policies [Line Items] |
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| Estimated useful life |
20 years |
| Maximum | Furniture and Fixtures |
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| Significant Accounting Policies [Line Items] |
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| Estimated useful life |
10 years |
| Maximum | Computer Equipment |
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| Significant Accounting Policies [Line Items] |
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| Estimated useful life |
6 years |