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Significant Accounting Policies - Additional Information (Detail)
$ in Millions
12 Months Ended
Dec. 31, 2015
USD ($)
Segment
Dec. 31, 2014
USD ($)
Dec. 31, 2013
USD ($)
Significant Of Accounting Policies [Line Items]      
Number of operating segments | Segment 2    
Foreign currency translation losses $ 1.5 $ 1.7 $ 0.2
Depreciation 12.0 11.4 10.8
Property, plant and equipment, transfers 3.1 4.1  
Deferred revenue 2.6 2.4  
Selling, General and Administrative Expenses      
Significant Of Accounting Policies [Line Items]      
Research and development expenses $ 14.0 $ 13.1 $ 11.0
Building | Minimum      
Significant Of Accounting Policies [Line Items]      
Useful life 8 years    
Building | Maximum      
Significant Of Accounting Policies [Line Items]      
Useful life 40 years    
Machinery and Equipment | Minimum      
Significant Of Accounting Policies [Line Items]      
Useful life 3 years    
Machinery and Equipment | Maximum      
Significant Of Accounting Policies [Line Items]      
Useful life 15 years    
Leasehold Improvements      
Significant Of Accounting Policies [Line Items]      
Useful life description over the shorter of the remaining life of the lease or the useful life of the improvement