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Goodwill and Other Intangible Assets Changes in Carrying Amount of Goodwill (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Goodwill [Roll Forward]  
Goodwill, beginning of period $ 126,697
Currency translation effect on foreign goodwill balances (349)
Goodwill, end of period $ 126,348