XML 65 R43.htm IDEA: XBRL DOCUMENT v2.4.0.8
Significant Accounting Policies - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Segment
Dec. 31, 2012
Dec. 31, 2011
Significant Of Accounting Policies [Line Items]      
Number of operating segments 3    
Foreign currency translation losses $ 0.3 $ 0.6 $ 0.3
Restricted cash   1.0  
Depreciation 14.0 12.1 11.7
Selling, General and Administrative Expenses
     
Significant Of Accounting Policies [Line Items]      
Research and development expenses $ 11.0 $ 10.0 $ 12.1
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