OTHER BALANCE SHEET DETAILS (Detail) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 76,548	$ 58,740
Less: accumulated depreciation and amortization	(25,025)	(17,416)
Property and equipment, net	51,523	41,324
Depreciation and amortization	9,439	5,682	$ 3,930
Laboratory equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	31,988	24,737
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	21,970	15,953
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment, gross	9,080	4,870
Manufacturing equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	8,781	1,089
Construction in progress
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 4,729	$ 12,091

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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