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Long-Term Employee Benefit Liabilities - Summary of Weighted Average Significant Actuarial Assumptions Adopted in Measuring Company's Obligations and Cost (Detail) (Pension Plan, Defined Benefit [Member])
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Pension Plan, Defined Benefit [Member]
      
Defined Benefit Plan Disclosure [Line Items]      
Discount rate 4.70% 4.10% 4.70%
Rate of compensation increase 2.90% 2.80% 2.80%
Discount rate 4.10% 4.70% 5.20%
Rate of compensation increase 2.80% 2.80% 2.70%
Expected return on plan assets 6.50% 7.00% 7.10%