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Acquisitions and Goodwill Goodwill Table (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Goodwill Table [Abstract]    
Goodwill Beginning Balance $ 5,520 $ 319
Goodwill, Acquired During Period 0 1,254
Impact of foreign exchange 40 20
Goodwill Ending Balance $ 5,560 $ 1,593