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Segment Information - Financial Information with Respect to Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Revenue from External Customer [Line Items]
Total revenue	$ 110,731	$ 153,486
Operating income (loss)	(36,610)	(2,882)
Adjusted EBITDA	1,536	33,663
Operating segments | International Services
Revenue from External Customer [Line Items]
Total revenue	46,610	83,063
Operating income (loss)	(9,513)	14,293
Adjusted EBITDA	5,286	31,379
Operating segments | U.S. Services
Revenue from External Customer [Line Items]
Total revenue	30,966	48,779
Operating income (loss)	(23,347)	(15,658)
Adjusted EBITDA	(7,215)	2,730
Operating segments | Tubular Sales
Revenue from External Customer [Line Items]
Total revenue	16,945	21,644
Operating income (loss)	2,380	(1,517)
Adjusted EBITDA	2,254	(446)
Operating segments | Blackhawk
Revenue from External Customer [Line Items]
Total revenue	16,210
Operating income (loss)	(6,130)
Adjusted EBITDA	1,211	0
Eliminations
Revenue from External Customer [Line Items]
Total revenue	(7,963)	(9,792)
Eliminations | International Services
Revenue from External Customer [Line Items]
Total revenue	3	17
Eliminations | U.S. Services
Revenue from External Customer [Line Items]
Total revenue	4,285	4,110
Eliminations | Tubular Sales
Revenue from External Customer [Line Items]
Total revenue	$ 3,675	$ 5,665

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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