Intangible Assets and Goodwill - Schedule of Goodwill (Details) $ in Thousands	3 Months Ended
Mar. 31, 2018 USD ($)
Goodwill, Beginning Balance	$ 5,064
Foreign currency translation	216
Acquisition	112,109
Goodwill, Ending Balance	117,389
Product
Goodwill, Beginning Balance	5,064
Foreign currency translation	216
Acquisition	66,109
Goodwill, Ending Balance	71,389
Service
Acquisition	46,000
Goodwill, Ending Balance	$ 46,000

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975

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