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Intangible Assets - Summary of Acquired Intangible Assets (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Acquired Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 6,030	$ 6,030
Accumulated Amortization	1,906	1,578
Intangibles, Net	$ 4,124	$ 4,452
Customer relationships
Acquired Finite Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (years)	10 years	10 years
Gross Carrying Amount	$ 4,830	$ 4,830
Accumulated Amortization	1,479	1,237
Intangibles, Net	$ 3,351	$ 3,593
Developed technologies
Acquired Finite Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (years)	9 years	9 years
Gross Carrying Amount	$ 1,080	$ 1,080
Accumulated Amortization	341	274
Intangibles, Net	$ 739	$ 806
Tradename
Acquired Finite Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (years)	3 years	3 years
Gross Carrying Amount	$ 120	$ 120
Accumulated Amortization	86	67
Intangibles, Net	$ 34	$ 53

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
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- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 928
-SubTopic 340
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004

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-Name Accounting Standards Codification
-Topic 350
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-Section 50
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