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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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The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

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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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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services 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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Amount of increase (decrease) of physical assets used in the normal conduct of business and not intended for resale, from reclassification, impairment, donation, or changes classified as other. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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Property and Equipment, Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Property and Equipment, Net
Property and equipment, gross	$ 58,475	$ 24,277
Less: accumulated depreciation	(2,301)	(76)
Property and equipment, net	56,174	24,201
Depreciation expense
Depreciation and amortization	2,270	64	$ 14
Furniture
Property and Equipment, Net
Property and equipment, gross	$ 919	108
Furniture \| Minimum
Depreciation expense
Useful life	5 years
Furniture \| Maximum
Depreciation expense
Useful life	10 years
Equipment
Property and Equipment, Net
Property and equipment, gross	$ 34,777	230
Equipment \| Minimum
Depreciation expense
Useful life	5 years
Equipment \| Maximum
Depreciation expense
Useful life	10 years
Leasehold improvement
Property and Equipment, Net
Property and equipment, gross	$ 7,123	777
Construction in progress
Property and Equipment, Net
Property and equipment, gross	15,656	$ 23,162
Construction in progress
Decrease in construction in progress	$ (7,500)
Manufacturing pods
Depreciation expense
Useful life	20 years