Goodwill and Intangible Assets (Details) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Mar. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Sep. 30, 2014 USD ($)	Jun. 30, 2014 USD ($)	Mar. 31, 2014 USD ($)	Dec. 31, 2015 USD ($) acquistion	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Goodwill [Line Items]
Number of acquisitions | acquistion									4
Balance as of Period End	$ 0				$ 5,936				$ 0	$ 5,936	$ 8,390
Goodwill, Impairment Loss	$ (5,698)	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	(5,698)	0	$ 0
Goodwill, Acquired During Period										1,257
Balance as of Period Start				$ 5,936				$ 8,390	5,936	8,390
Goodwill, translation adjustment									$ (238)	(323)
Discontinued Operations [Member]
Goodwill [Line Items]
Goodwill, Impairment Loss										$ (3,388)