Property and Equipment, Net - Schedule of Property and Equipment Net (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	$ 11,800	$ 10,959
Less: Accumulated depreciation and amortization	(4,514)	(2,733)
Property, plant and equipment, net	7,286	8,226
Laboratory Equipment
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	3,583	2,970
Leasehold Improvements
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	6,632	6,531
Computer Equipment
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	511	305
Furniture and Office Equipment
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	$ 1,074	1,074
Construction in Progress
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross		$ 79

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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