Segment Information - Financial Information with Respect to Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Revenue from External Customer [Line Items]
Total revenue	$ 120,946	$ 254,304	$ 274,432	$ 531,741
Adjusted EBITDA	(13,673)	80,034	18,100	180,379
Operating segments | International Services
Revenue from External Customer [Line Items]
Total revenue	57,350	122,640	140,412	246,841
Adjusted EBITDA	(4,159)	55,311	27,220	107,596
Operating segments | U.S. Services
Revenue from External Customer [Line Items]
Total revenue	37,118	78,418	85,898	187,704
Adjusted EBITDA	(11,318)	16,714	(10,500)	61,662
Operating segments | Tubular Sales
Revenue from External Customer [Line Items]
Total revenue	26,478	53,246	48,122	97,196
Adjusted EBITDA	1,624	7,978	1,178	11,097
Inter-segment
Revenue from External Customer [Line Items]
Total revenue	(8,320)	(17,417)	(18,112)	(37,599)
Inter-segment | International Services
Revenue from External Customer [Line Items]
Total revenue	29	229	45	606
Inter-segment | U.S. Services
Revenue from External Customer [Line Items]
Total revenue	3,940	6,644	8,050	14,558
Inter-segment | Tubular Sales
Revenue from External Customer [Line Items]
Total revenue	4,351	10,544	10,017	22,435
Corporate and Other
Revenue from External Customer [Line Items]
Total revenue	0	0	0	0
Adjusted EBITDA	$ 180	$ 31	$ 202	$ 24