Balance Sheet Components (Components of Property and Equipment, Net) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Property and equipment	$ 88,790	$ 74,790
Less: Accumulated depreciation	(56,286)	(49,891)
Property and equipment, net	32,504	24,899
Laboratory Equipment And Machinery [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	31,534	24,948
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	31,114	29,931
Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	15,059	12,400
Computer software [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	5,578	4,940
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	3,202	2,434
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	$ 2,303	$ 137

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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