Goodwill and Intangible Assets - Carrying Amount of Goodwill by Reportable Operating Segment (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2016 USD ($)
Goodwill [Line Items]
Goodwill, Acquired During Period	$ 10,147
Goodwill, Other Increase (Decrease)	10,869
Goodwill [Roll Forward]
Goodwill, Beginning Balance	149,219
Foreign exchange translation	559
Goodwill, Ending Balance	170,794
North America [Member]
Goodwill [Line Items]
Goodwill, Acquired During Period	7,175
Goodwill, Other Increase (Decrease)	0
Goodwill [Roll Forward]
Goodwill, Beginning Balance	114,109
Foreign exchange translation	790
Goodwill, Ending Balance	122,074
Europe [Member]
Goodwill [Line Items]
Goodwill, Acquired During Period	0
Goodwill, Other Increase (Decrease)	0
Goodwill [Roll Forward]
Goodwill, Beginning Balance	11,056
Foreign exchange translation	384
Goodwill, Ending Balance	11,440
Asia Pacific [Member]
Goodwill [Line Items]
Goodwill, Acquired During Period	2,972
Goodwill, Other Increase (Decrease)	10,869
Goodwill [Roll Forward]
Goodwill, Beginning Balance	24,054
Foreign exchange translation	(615)
Goodwill, Ending Balance	$ 37,280