Goodwill and Intangible Assets, Net - Acquisition-Related Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 5,735	$ 5,770
Accumulated Amortization	(1,786)	(1,391)
Net Carrying Amount	3,949	4,379
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	4,768	4,797
Accumulated Amortization	(1,581)	(1,283)
Net Carrying Amount	3,187	3,514
Technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	967	973
Accumulated Amortization	(205)	(108)
Net Carrying Amount	$ 762	$ 865