Goodwill and Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Finite Lived Intangible Assets [Line Items]
Gross carrying amount	$ 35,513	$ 15,356
Accumulated amortization	(12,316)	(6,722)
Net carrying amount	$ 23,197	8,634
Minimum
Finite Lived Intangible Assets [Line Items]
Weighted-average life (years)	1 year
Maximum
Finite Lived Intangible Assets [Line Items]
Weighted-average life (years)	7 years
Developed Technology
Finite Lived Intangible Assets [Line Items]
Gross carrying amount	$ 5,090	4,065
Accumulated amortization	(3,225)	(2,017)
Net carrying amount	$ 1,865	$ 2,048
Developed Technology | Weighted-Average
Finite Lived Intangible Assets [Line Items]
Weighted-average life (years)	3 years 14 days	3 years 14 days
Tradenames
Finite Lived Intangible Assets [Line Items]
Gross carrying amount	$ 3,193	$ 2,495
Accumulated amortization	(1,526)	(701)
Net carrying amount	$ 1,667	$ 1,794
Tradenames | Weighted-Average
Finite Lived Intangible Assets [Line Items]
Weighted-average life (years)	4 years 6 months 3 days	5 years 2 months 4 days
Non-compete
Finite Lived Intangible Assets [Line Items]
Gross carrying amount	$ 240	$ 240
Accumulated amortization	(230)	(110)
Net carrying amount	$ 10	$ 130
Non-compete | Weighted-Average
Finite Lived Intangible Assets [Line Items]
Weighted-average life (years)	2 years	2 years
Customer Relationships
Finite Lived Intangible Assets [Line Items]
Gross carrying amount	$ 26,990	$ 8,556
Accumulated amortization	(7,335)	(3,894)
Net carrying amount	$ 19,655	$ 4,662
Customer Relationships | Weighted-Average
Finite Lived Intangible Assets [Line Items]
Weighted-average life (years)	6 years 4 months 20 days	5 years