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Income Taxes - Reconciliation of Unrecognized Tax Benefits (Detail) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Income Tax Disclosure [Abstract]      
Unrecognized tax benefits, Beginning Balance $ 1,844 $ 1,269 $ 1,222
Additions for tax positions of prior years 414 112 107
Reductions for tax positions of prior years (256) (37)  
Additions for tax positions of current year 19 1,444 17
Settlements   (582)  
Lapse of statute of limitations   (360) (77)
Translation adjustments (9) (2)  
Unrecognized tax benefits, Ending Balance $ 2,012 $ 1,844 $ 1,269