Goodwill and Intangible Assets - Summary of Intangible Assets (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 80,243	$ 80,243
Accumulated Amortization	(14,506)	(3,575)
Net Carrying Amount	65,737	76,668
Developed Technology
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	62,367	62,367
Accumulated Amortization	(10,793)	(2,860)
Net Carrying Amount	$ 51,574	$ 59,507
Weighted-Average Useful Lives (in years)	5 years 10 months 24 days	5 years 10 months 24 days
Customer Relationships
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 13,400	$ 13,400
Accumulated Amortization	(3,071)	(558)
Net Carrying Amount	$ 10,329	$ 12,842
Weighted-Average Useful Lives (in years)	4 years	4 years
Tradename
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 400	$ 400
Accumulated Amortization	$ (400)	(133)
Net Carrying Amount		$ 267
Weighted-Average Useful Lives (in years)	6 months	6 months
Patents
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 4,076	$ 4,076
Accumulated Amortization	(242)	(24)
Net Carrying Amount	$ 3,834	$ 4,052
Weighted-Average Useful Lives (in years)	14 years	14 years