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Goodwill and Other Intangibles - Changes in Carrying Amount of Goodwill by Segment (Detail)
$ in Thousands
9 Months Ended
Sep. 30, 2015
USD ($)
Goodwill [Line Items]  
Beginning Balance $ 17,792
Currency translation (2,241)
Ending Balance 15,551
The Americas [Member]  
Goodwill [Line Items]  
Beginning Balance 7,750
Currency translation (621)
Ending Balance 7,129
EMEA [Member]  
Goodwill [Line Items]  
Beginning Balance 1,528
Currency translation (159)
Ending Balance 1,369
Asia-Pacific [Member]  
Goodwill [Line Items]  
Beginning Balance 8,514
Currency translation (1,461)
Ending Balance $ 7,053