Goodwill Assets (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2015 USD ($)
Goodwill [Roll Forward]
Goodwill, Beginning Balance	$ 77,933
Goodwill, Acquired During Period	(271)
Goodwill, Translation Adjustments	(1,645)
Goodwill, Ending Balance	76,017
North America [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	42,677
Goodwill, Acquired During Period	30
Goodwill, Translation Adjustments	(107)
Goodwill, Ending Balance	42,600
EMEA [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	16,050
Goodwill, Acquired During Period	(404)
Goodwill, Translation Adjustments	(1,009)
Goodwill, Ending Balance	14,637
Asia Pacific [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	16,006
Goodwill, Acquired During Period	103
Goodwill, Translation Adjustments	(74)
Goodwill, Ending Balance	16,035
South America [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	3,200
Goodwill, Acquired During Period	0
Goodwill, Translation Adjustments	(455)
Goodwill, Ending Balance	$ 2,745