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Property and Equipment, net - Summary of Property and Equipment, Net (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 63,335	$ 43,376
Accumulated Depreciation	(21,175)	(12,046)
Total property and equipment, net	42,160	31,330
Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	727	727
Furniture, Fixtures, and Other [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	3,416	3,215
Laboratory Equipment [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	25,353	16,640
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	25,473	21,400
Construction Work in Process [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 8,366	$ 1,394

X

- Definition

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

+ References

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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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