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Summary of Weighted-Average Assumptions Used in Determining Benefit Obligations (Detail)
Dec. 31, 2013
Dec. 31, 2012
U.S. Benefit Plans
    
Schedule of Net Periodic Benefit Costs Weighted Average Assumptions [Line Items]    
Discount rate 5.10% 4.20%
Rate of increase in compensation levels 3.50% 3.50%
Non-U.S. Benefit Plan
    
Schedule of Net Periodic Benefit Costs Weighted Average Assumptions [Line Items]    
Discount rate 4.50% 4.10%