Segment Information - Financial Information with Respect to Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Revenue from External Customer [Line Items]
Revenue	$ 117,659	$ 120,946	$ 228,390	$ 274,432
Operating income (loss)	(33,966)	(50,678)	(70,576)	(53,560)
International Services
Revenue from External Customer [Line Items]
Revenue	53,499	57,350	100,109	140,412
U.S. Services
Revenue from External Customer [Line Items]
Revenue	29,905	37,118	60,871	85,898
Tubular Sales
Revenue from External Customer [Line Items]
Revenue	16,141	26,478	33,086	48,122
Blackhawk
Revenue from External Customer [Line Items]
Revenue	18,114	0	34,324	0
Operating segments
Revenue from External Customer [Line Items]
Operating income (loss)	(33,966)	(50,678)	(70,576)	(53,560)
Adjusted EBITDA	3,564	(12,288)	5,100	21,375
Operating segments \| International Services
Revenue from External Customer [Line Items]
Operating income (loss)	(6,980)	(22,430)	(16,493)	(8,137)
Adjusted EBITDA	9,022	(4,159)	14,308	27,220
Operating segments \| U.S. Services
Revenue from External Customer [Line Items]
Operating income (loss)	(24,292)	(28,649)	(47,639)	(44,307)
Adjusted EBITDA	(9,238)	(9,753)	(16,453)	(7,023)
Operating segments \| Tubular Sales
Revenue from External Customer [Line Items]
Operating income (loss)	805	401	3,185	(1,116)
Adjusted EBITDA	815	1,624	3,069	1,178
Operating segments \| Blackhawk
Revenue from External Customer [Line Items]
Operating income (loss)	(3,499)	0	(9,629)	0
Adjusted EBITDA	2,965	0	4,176	0
Eliminations
Revenue from External Customer [Line Items]
Revenue	(8,191)	(8,320)	(16,154)	(18,112)
Eliminations \| International Services
Revenue from External Customer [Line Items]
Revenue	12	29	15	45
Eliminations \| U.S. Services
Revenue from External Customer [Line Items]
Revenue	4,543	3,940	8,828	8,050
Eliminations \| Tubular Sales
Revenue from External Customer [Line Items]
Revenue	3,564	4,351	7,239	10,017
Eliminations \| Blackhawk
Revenue from External Customer [Line Items]
Revenue	$ 72	$ 0	$ 72	$ 0

Adjusted Earnings before Interest, Taxes, Depreciation, and Amortization

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- Definition

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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The net result for the period of deducting operating expenses from operating revenues.

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- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

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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