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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Area of land held.

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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 of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee.

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This element represents the amount of gain (loss) on sale of properties during the reporting period gross of the applicable income taxes realized.

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The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.

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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 (Details) $ in Thousands	12 Months Ended
Property, Plant and Equipment (Details) $ in Thousands	Dec. 31, 2019 USD ($) a	Dec. 31, 2018 USD ($)	Jun. 19, 2018 a
Property, Plant and Equipment
Gross property, plant, and equipment	$ 191,322	$ 188,655
Less: accumulated depreciation and amortization, including accumulated amortization of finance leases	(109,008)	(101,798)
Property, plant, and equipment - net	82,314	86,857
Depreciation	11,054	11,495
Proceeds from the sale of property, plant, and equipment	1,151	2,389
Land in Willis, TX \| Disposal Group, Disposed of by Sale, Not Discontinued Operations \| Tubular and Energy Services
Property, Plant and Equipment
Area of land (in acres) \| a			54.5
Proceeds from the sale of property, plant, and equipment		2,047
Gain (loss) on sale	1,768	0
Ball Winch Field Service \| Disposal Group, Disposed of by Sale, Not Discontinued Operations \| Tubular and Energy Services
Property, Plant and Equipment
Gain (Loss) on Disposition of Assets	0	(269)
Land
Property, Plant and Equipment
Gross property, plant, and equipment	$ 11,076	12,440
Area of land (in acres) \| a	54.5
Improvements to land and leaseholds
Property, Plant and Equipment
Gross property, plant, and equipment	$ 17,172	17,610
Buildings
Property, Plant and Equipment
Gross property, plant, and equipment	35,241	34,608
Machinery and equipment, including equipment under capitalized leases
Property, Plant and Equipment
Gross property, plant, and equipment	122,599	120,914
Construction in progress
Property, Plant and Equipment
Gross property, plant, and equipment	5,234	$ 3,083
Land and Building
Property, Plant and Equipment
Proceeds from the sale of property, plant, and equipment	900
Gain (loss) on sale	$ (198)