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Segment Information - EBITDA Reconciliation (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2016 USD ($) segment ft	Jun. 30, 2015 USD ($)
Segment Reporting [Abstract]
Number of reportable segments | segment			3
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Adjusted EBITDA	$ (13,673)	$ 80,034	$ 18,100	$ 180,379
Interest income (expense), net	198	(31)	404	(23)
Income tax benefit (expense)	7,705	(10,629)	8,511	(21,891)
Depreciation and amortization	(28,283)	(27,710)	(57,733)	(51,711)
Gain (loss) on sale of assets	279	(687)	1,049	(871)
Foreign currency loss	(4,170)	(2,767)	(4,211)	(1,234)
Equity-based compensation expense	(4,320)	(8,308)	(8,528)	(16,373)
Severance and other charges	(3,718)	(1,049)	(4,324)	(13,022)
Unrealized and realized gains (losses)	695	0	(963)	0
Income (loss) from continuing operations	(45,287)	28,853	(47,695)	75,254
International Services
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Severance and other charges			(2,590)
U.S. Services
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Severance and other charges			(1,549)
Tubular Sales
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Severance and other charges			(185)
Operating segments | International Services
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Adjusted EBITDA	(4,159)	55,311	27,220	107,596
Operating segments | U.S. Services
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Adjusted EBITDA	(11,318)	16,714	(10,500)	61,662
Operating segments | Tubular Sales
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Adjusted EBITDA	1,624	7,978	1,178	11,097
Corporate and other
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Adjusted EBITDA	$ 180	$ 31	$ 202	$ 24
Maximum | Tubular Sales
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Length of tubulars used as caissons or pilings (in feet) | ft			300

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