Segment Information (Reconciliation of Revenue from Segments to Consolidated) (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Segment Reporting [Abstract]
Consolidated Gross Margin	$ 22,300	$ 37,983
Depreciation	(21,984)	(22,653)
General and administrative	(14,655)	(19,758)
Pre-petition restructuring charges	(17,074)	0
Impairment	(17,853)	(1,046)
Bad debt (expense) recovery, net	(727)	(62)
Gain on dispositions of property and equipment, net	(717)	(1,075)
Loss from operations	$ (49,276)	$ (4,461)

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Amount of the current period expense charged against operations, the offset which is generally to the allowance for doubtful accounts for the purpose of reducing receivables, to an amount that approximates their net realizable value (the amount expected to be collected), net of recoveries of amounts previously charged to earnings as uncollectible.

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Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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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 of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.

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The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

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Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

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