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Balance Sheet Details - Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Property and equipment, net
Property and equipment, gross	$ 89,621	$ 39,929
Less accumulated depreciation and amortization	(20,652)	(15,921)
Property and equipment, net	68,969	24,008	$ 22,056
Depreciation and amortization	29,661	29,381	6,306
Facilities at 6797 Winchester Circle, Boulder, Colorado
Property and equipment, net
Property and equipment, gross	874	874
Equipment leases with General Electric Capital Corporation
Property and equipment, net
Property and equipment, gross	19,280	15,737
Furniture and fixtures
Property and equipment, net
Property and equipment, gross	1,706	1,820
Leasehold improvements
Property and equipment, net
Property and equipment, gross	6,152	5,851
Computer equipment and software
Property and equipment, net
Property and equipment, gross	3,333	2,754
Land
Property and equipment, net
Property and equipment, gross	7,068	7,068
Construction in progress
Property and equipment, net
Property and equipment, gross	51,208	5,825
Property, Plant and Equipment
Property and equipment, net
Depreciation and amortization	$ 4,800	$ 6,100	$ 3,700

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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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