Annual report pursuant to Section 13 and 15(d)

Goodwill and Other Identifiable Intangible Assets - Schedule of Changes in Carrying Amount of Goodwill (Details)

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Goodwill and Other Identifiable Intangible Assets - Schedule of Changes in Carrying Amount of Goodwill (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2017
USD ($)
Goodwill And Intangible Assets Disclosure [Abstract]  
Acquisition $ 2,154
Translation adjustment 209
Balance as of December 31, 2017 $ 2,363