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Post-Employment Benefit Liabilities - Schedule of Changes to Post-Employment Benefits (Detail) (USD $)
In Thousands, unless otherwise specified
6 Months Ended 12 Months Ended
Jun. 30, 2014
Dec. 31, 2013
Compensation And Retirement Disclosure [Abstract]    
Beginning balance $ 6,920 $ 6,930
Amounts accrued 204 1,019
Payments to employees/government managed plan (148) (1,331)
Foreign currency impacts (66) 302
Ending balance $ 6,910 $ 6,920