Goodwill Assets (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Goodwill Roll Forward
Goodwill, Beginning Balance	$ 59,169	$ 58,152
Goodwill, Acquired During Period	277	1,786
Goodwill, Translation Adjustments	(1,295)	(769)
Goodwill, Ending Balance	58,151	59,169
North America [Member]
Goodwill Roll Forward
Goodwill, Beginning Balance	28,535	28,128
Goodwill, Acquired During Period	277	0
Goodwill, Translation Adjustments	(685)	407
Goodwill, Ending Balance	28,127	28,535
EMEA [Member]
Goodwill Roll Forward
Goodwill, Beginning Balance	11,411	11,184
Goodwill, Acquired During Period	0	1,786
Goodwill, Translation Adjustments	(227)	(1,559)
Goodwill, Ending Balance	11,184	11,411
Asia Pacific [Member]
Goodwill Roll Forward
Goodwill, Beginning Balance	15,323	15,018
Goodwill, Acquired During Period	0	0
Goodwill, Translation Adjustments	(305)	305
Goodwill, Ending Balance	15,018	15,323
South America [Member]
Goodwill Roll Forward
Goodwill, Beginning Balance	3,900	3,822
Goodwill, Acquired During Period	0	0
Goodwill, Translation Adjustments	(78)	78
Goodwill, Ending Balance	$ 3,822	$ 3,900