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Employee Benefit Plans - Summary of Severance Associated with Cost Reduction Programs (Detail) (USD $)
In Thousands, unless otherwise specified
6 Months Ended
Jun. 30, 2014
Compensation And Retirement Disclosure [Abstract]  
Severance expenses payable, opening balance $ 14,056
Severance expense, net of reversals (2,536)
Severance payments (2,560)
Severance foreign currency translation 6
Severance expenses payable, ending balance $ 8,966