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 amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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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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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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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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Property, Plant and Equipment, net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Jan. 01, 2019
Property, plant and equipment
Gross	$ 40,709	$ 102,252
Accumulated depreciation	(15,381)	(61,103)
Net	25,328	41,149
Depreciation expense	2,600	3,200	$ 2,200
Land and buildings
Property, plant and equipment
Gross	7,365	75,904
Finance lease land and buildings
Property, plant and equipment
Gross				$ 70,100
Accumulated depreciation				$ (48,000)
Machinery and equipment
Property, plant and equipment
Gross	28,732	19,982
Construction in process
Property, plant and equipment
Gross	$ 4,612	$ 6,366