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Goodwill and Other Intangibles - Changes in Carrying Amount of Goodwill by Segment (Detail)
$ in Thousands
6 Months Ended
Jun. 30, 2019
USD ($)
Goodwill [Line Items]  
Beginning Balance $ 15,621
Currency translation (87)
Additions 13,192
Ending Balance 28,726
USA [Member]  
Goodwill [Line Items]  
Beginning Balance 3,078
Currency translation 0
Ending Balance 3,078
The Americas [Member]  
Goodwill [Line Items]  
Beginning Balance 3,997
Currency translation 135
Ending Balance 4,132
EMEA [Member]  
Goodwill [Line Items]  
Beginning Balance 1,355
Currency translation (151)
Additions 13,192
Ending Balance 14,396
Asia-Pacific [Member]  
Goodwill [Line Items]  
Beginning Balance 7,191
Currency translation (71)
Ending Balance $ 7,120