Segment and Related Information - Employee Termination Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Segment Reporting Information [Line Items]
Severance costs	$ 4,572	$ 8,163
Fluids systems [Member]
Segment Reporting Information [Line Items]
Severance costs	4,125	7,218
Mats and integrated services [Member]
Segment Reporting Information [Line Items]
Severance costs	285	717
Corporate [Member]
Segment Reporting Information [Line Items]
Severance costs	162	228
Cost of revenues [Member]
Segment Reporting Information [Line Items]
Severance costs	3,647	5,664
Selling, general and administrative expenses [Member]
Segment Reporting Information [Line Items]
Severance costs	$ 925	$ 2,499