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Other Financial Statement Information - Intangible Assets, Net (Detail) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 22,912	$ 22,912
Accumulated Amortization	(1,361)	(546)
Intangibles, Net	$ 21,551	$ 22,366
Technology licenses
Finite-Lived Intangible Assets [Line Items]
Remaining Useful Life in Years	14 years 2 months 12 days	14 years 8 months 12 days
Gross Carrying Amount	$ 22,504	$ 22,504
Accumulated Amortization	(1,207)	(440)
Intangibles, Net	$ 21,297	$ 22,064
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Remaining Useful Life in Years	5 years 4 months 24 days	5 years 10 months 24 days
Gross Carrying Amount	$ 204	$ 204
Accumulated Amortization	(46)	(32)
Intangibles, Net	$ 158	$ 172
Trademarks
Finite-Lived Intangible Assets [Line Items]
Remaining Useful Life in Years	1 year 4 months 24 days	1 year 10 months 24 days
Gross Carrying Amount	$ 204	$ 204
Accumulated Amortization	(108)	(74)
Intangibles, Net	$ 96	$ 130

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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