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