Acquisitions (Details 1) $ in Thousands	3 Months Ended
	Mar. 31, 2016 USD ($)
Business Acquisition [Line Items]
Beginning Liability	$ 2,381
Additions (Payments)	294
Change in Fair Value of Contingent Consideration	159
Foreign Currency Translation	109
Ending Liability	2,943
Jencal Training [Member]
Business Acquisition [Line Items]
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, Low	0
Business Acquisition Contingent Consideration Potential Cash Payment In Current Year	429
Beginning Liability	0
Additions (Payments)	294
Change in Fair Value of Contingent Consideration	0
Foreign Currency Translation	9
Ending Liability	303
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	429
Effective Companies [Member]
Business Acquisition [Line Items]
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, Low	0
Business Acquisition Contingent Consideration Potential Cash Payment In Current Year	2,640
Beginning Liability	2,381
Additions (Payments)	0
Change in Fair Value of Contingent Consideration	159
Foreign Currency Translation	100
Ending Liability	2,640
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	$ 5,280