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Debit and Credit Arrangements - Debt and Credit Arrangements (Parenthetical) (Detail)
Dec. 31, 2013
Dec. 31, 2012
Australian Dollar Denominated Term Loans Long-term Debt [Member]
   
Debt Instrument [Line Items]    
Debt instrument interest rate 6.00% 5.83%
Minimum [Member] | USD Denominated Long-term Debt [Member]
   
Debt Instrument [Line Items]    
Debt instrument interest rate 1.29%  
Minimum [Member] | Brazilian Real Denominated Term Loan Long-Term Debt [Member]
   
Debt Instrument [Line Items]    
Debt instrument interest rate 4.50%  
Maximum [Member] | Brazilian Real Denominated Term Loan Long-Term Debt [Member]
   
Debt Instrument [Line Items]    
Debt instrument interest rate 8.12%  
Brazilian Real Denominated Secured Notes Short Term Debt [Member] | Minimum [Member]
   
Debt Instrument [Line Items]    
Debt instrument interest rate 3.25%  
Brazilian Real Denominated Secured Notes Short Term Debt [Member] | Maximum [Member]
   
Debt Instrument [Line Items]    
Debt instrument interest rate 3.60%  
New Zealand Dollar [Member] | Minimum [Member]
   
Debt Instrument [Line Items]    
Debt instrument interest rate 1.70% 1.70%
New Zealand Dollar [Member] | Maximum [Member]
   
Debt Instrument [Line Items]    
Debt instrument interest rate 5.56% 5.56%