Balance Sheet Components - Intangible Assets, Net (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Gross Value	$ 19,658	$ 19,658
Accumulated Amortization	(3,885)	(3,189)
Net Book Value	15,773	16,469
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Value	8,190	8,190
Accumulated Amortization	(1,479)	(1,227)
Net Book Value	6,711	6,963
Developed technology
Finite-Lived Intangible Assets [Line Items]
Gross Value	11,020	11,020
Accumulated Amortization	(2,268)	(1,848)
Net Book Value	8,752	9,172
Trade name
Finite-Lived Intangible Assets [Line Items]
Gross Value	448	448
Accumulated Amortization	(138)	(114)
Net Book Value	$ 310	$ 334
Weighted Average | Customer relationships
Finite-Lived Intangible Assets [Line Items]
Weighted- Average Remaining Useful Life	6 years 9 months 18 days	7 years 1 month 6 days
Weighted Average | Developed technology
Finite-Lived Intangible Assets [Line Items]
Weighted- Average Remaining Useful Life	5 years 4 months 24 days	5 years 8 months 12 days
Weighted Average | Trade name
Finite-Lived Intangible Assets [Line Items]
Weighted- Average Remaining Useful Life	3 years 9 months 18 days	4 years