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Goodwill and Other Intangibles - Changes in Carrying Amount of Goodwill by Segment (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Goodwill [Line Items]    
Beginning Balance $ 17,792 $ 13,873
Additions   4,909
Currency translation (1,971) (990)
Ending Balance 15,821 17,792
USA [Member]    
Goodwill [Line Items]    
Beginning Balance 3,078 3,078
Additions   0
Currency translation 0 0
Ending Balance 3,078 3,078
The Americas [Member]    
Goodwill [Line Items]    
Beginning Balance 4,672 0
Additions   4,909
Currency translation (754) (237)
Ending Balance 3,918 4,672
EMEA [Member]    
Goodwill [Line Items]    
Beginning Balance 1,528 1,754
Additions   0
Currency translation (227) (226)
Ending Balance 1,301 1,528
Asia-Pacific [Member]    
Goodwill [Line Items]    
Beginning Balance 8,514 9,041
Additions   0
Currency translation (990) (527)
Ending Balance $ 7,524 $ 8,514