Acquisitions (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014
Business Acquisition [Line Items]
Liability as of December 31, 2013	$ 3,797
Payments	(1,005)
Change in Fair Value of Contingent Consideration	(377)
Foreign Currency Translation	(47)
Liability as of March 31, 2014	2,368
Bath Consulting [Member]
Business Acquisition [Line Items]
Liability as of December 31, 2013	997
Payments	(1,005)
Change in Fair Value of Contingent Consideration	0
Foreign Currency Translation	8
Liability as of March 31, 2014	0
Prospero [Member]
Business Acquisition [Line Items]
Liability as of December 31, 2013	1,841
Payments	0
Change in Fair Value of Contingent Consideration	(400)
Foreign Currency Translation	(63)
Liability as of March 31, 2014	1,378
Lorien [Member]
Business Acquisition [Line Items]
Liability as of December 31, 2013	959
Payments	0
Change in Fair Value of Contingent Consideration	23
Foreign Currency Translation	8
Liability as of March 31, 2014	$ 990