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Debt and Credit Arrangements - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Debt Disclosure [Abstract]      
Line of credit $ 50    
PLP-USA line of credit maturity date 2017-01    
Interest rate of LIBOR plus 1.125%    
Interest rate for Line of credit 1.29%    
Line credit outstanding 12.6    
Aggregate maturities of long-term debt for 2014 0.2    
Aggregate maturities of long-term debt for 2015 0.1    
Aggregate maturities of long-term debt for 2016 0.1    
Aggregate maturities of long-term debt for 2017 12.7    
Aggregate maturities of long-term debt there after 0.1    
Interest paid 0.4 0.9 0.8
Total outstanding guarantees 2    
Letter of credit outstanding $ 4.7