Goodwill and Acquisition-Related Intangible Assets - Schedule of Acquisition-Related Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 63,720
Accumulated Amortization	(5,110)
Net Carrying Amount	$ 58,610	$ 0
Weighted Average Remaining useful Life (in years)	4 years 8 months 20 days
Developed technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 52,510
Accumulated Amortization	(3,824)
Net Carrying Amount	$ 48,686
Weighted Average Remaining useful Life (in years)	4 years 7 months 20 days
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 7,080
Accumulated Amortization	(375)
Net Carrying Amount	$ 6,705
Weighted Average Remaining useful Life (in years)	6 years 7 months 18 days
Trade name
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 2,470
Accumulated Amortization	(289)
Net Carrying Amount	$ 2,181
Weighted Average Remaining useful Life (in years)	2 years 7 months 25 days
Others
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 1,660
Accumulated Amortization	(622)
Net Carrying Amount	$ 1,038
Weighted Average Remaining useful Life (in years)	7 months 17 days