Segment Data - Narrative (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020 USD ($) numberOfRigs employees	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($) numberOfRigs employees	Jun. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)
Segment Reporting Information [Line Items]
Number of u.s. active rig count | numberOfRigs	265		265
Decline in U.S. active rig count, percent	(66.00%)		(66.00%)
Reduction of employees | employees	550		550
Reduction of employee interest rate	25.00%		25.00%
Severance costs	$ 2,800		$ 3,500
Selling, general and administrative expenses	20,937	$ 28,037	45,633	$ 58,779
Inventory write-downs			8,996	0
Inventory write-downs, severance costs and facility exist costs	11,900		13,300
Accumulated other comprehensive loss	73,308		73,308		$ 67,947
Goodwill	42,094		42,094		42,332
Property, plant and equipment, net	297,234		297,234		$ 310,409
Finite-lived intangible assets, net	26,400		26,400
Brazil
Segment Reporting Information [Line Items]
Accumulated other comprehensive loss	11,800		11,800
Cost of Revenue
Segment Reporting Information [Line Items]
Severance costs	2,000		2,400
Selling, General and Administrative Expenses
Segment Reporting Information [Line Items]
Severance costs	800		1,100
Operating Segments | Fluids systems
Segment Reporting Information [Line Items]
Severance costs	2,593	333	3,099	868
Inventory write-downs	8,269	0	8,996	0
Inventory write-downs, severance costs and facility exist costs	11,662	$ 333	12,895	$ 868
Combined assets	167,000		167,000
Operating Segments | Mats and Integrated Services
Segment Reporting Information [Line Items]
Combined assets	145,800		145,800
Corporate Office
Segment Reporting Information [Line Items]
Severance costs	200		400
Inventory write-downs, severance costs and facility exist costs	$ 200		$ 400