Adjusted Earnings before Interest, Taxes, Depreciation, and Amortization

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Investigation-Related Matters Expense

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Charges and Credits

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Restructuring, Settlement And Impairment Provisions (Credits)

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Tax Receivable Agreement Related Adjustments

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Unrealized and Realized Gains (Losses) on Derivatives

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This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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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 tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement.

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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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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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The net amount of nonoperating interest income (expense).

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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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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Amount of noncash expense for share-based payment arrangement.

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Segment Information - Reconciliation of Adjusted Earnings before Interest, Taxes, Depreciation, and Amortization from Segments to Consolidated (Details) - USD ($)	3 Months Ended						9 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2019	Sep. 30, 2018
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Adjusted EBITDA	$ 16,021,000			$ 11,616,000			$ 42,842,000	$ 20,410,000
Interest income, net	563,000			866,000			1,757,000	2,419,000
Depreciation and amortization	(21,482,000)			(26,998,000)			(70,637,000)	(84,160,000)
Income tax (expense) benefit	(7,297,000)			7,461,000			(20,370,000)	1,901,000
Gain (loss) on disposal of assets	(603,000)			2,242,000			(984,000)	1,790,000
Foreign currency loss	(3,872,000)			(879,000)			(4,050,000)	(3,442,000)
Tax receivable agreement (“TRA”) related adjustments	0			(1,170,000)			220,000	(5,282,000)
Charges and credits	(7,119,000)			(137,000)			(16,014,000)	(8,471,000)
Net loss	(23,789,000)	$ (15,160,000)	$ (28,287,000)	(6,999,000)	$ (25,763,000)	$ (42,073,000)	(67,236,000)	(74,835,000)
Equity-based compensation expense	2,647,000			3,008,000			8,238,000	8,176,000
Mergers and acquisition expense	0			0			0	58,000
Severance and other (charges) credits, net	(5,222,000)			4,852,000			(6,492,000)	2,483,000
Unrealized and realized gains	1,382,000			360,000			2,073,000	1,521,000
Investigation-related matters	632,000			2,341,000			3,357,000	4,241,000
Operating Segments \| Tubular Running Services
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Adjusted EBITDA	23,884,000			17,070,000			67,019,000	40,876,000
Operating Segments \| Tubulars
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Adjusted EBITDA	456,000			1,541,000			8,502,000	8,461,000
Operating Segments \| Cementing Equipment
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Adjusted EBITDA	3,031,000			1,972,000			9,854,000	7,074,000
Corporate
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Adjusted EBITDA	$ (11,350,000)			$ (8,967,000)			$ (42,533,000)	$ (36,001,000)