Intangible Assets and Goodwill - Schedule of Goodwill (Details) $ in Thousands	6 Months Ended
Jun. 30, 2018 USD ($)
Goodwill, Beginning Balance	$ 5,064
Foreign currency translation	(138)
Acquisition	113,409
Goodwill, Ending Balance	118,335
Product
Goodwill, Beginning Balance	5,064
Foreign currency translation	(138)
Acquisition	65,119
Goodwill, Ending Balance	70,045
Services
Acquisition	48,290
Goodwill, Ending Balance	$ 48,290

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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