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Other Noncurrent Liabilities (Detail) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2014
Dec. 31, 2013
Payables And Accruals [Abstract]    
Pension and other employee-related accrued expenses $ 5,635 $ 6,206
Penalty payment derivative   239
Other 1,999 1,542
Other noncurrent liabilities $ 7,634 $ 7,987