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Fixed assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Fixed assets
Gross fixed assets	$ 33,373	$ 20,177
Less accumulated depreciation and amortization	(11,824)	(7,483)
Net fixed assets	21,549	12,694
Depreciation	4,700	2,600	$ 2,300
Leasehold improvements
Fixed assets
Gross fixed assets	5,039	2,384
Computer equipment and software
Fixed assets
Gross fixed assets	8,069	4,609
Furniture, fixtures, machinery and lab equipment
Fixed assets
Gross fixed assets	17,033	9,965
Assets in process
Fixed assets
Gross fixed assets	$ 3,232	$ 3,219

X

- Definition

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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