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Segment Information - EBITDA Reconciliation (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($) segment ft	Sep. 30, 2015 USD ($)
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	$ (3,077)	$ 73,405	$ 15,023	$ 253,785
Interest income, net	646	173	1,050	150
Income tax benefit (expense)	6,800	(10,771)	15,311	(32,662)
Depreciation and amortization	(26,545)	(29,032)	(84,278)	(80,743)
Gain on sale of assets	46	1,392	1,095	521
Foreign currency loss	(1,696)	(5,329)	(5,907)	(6,563)
Equity-based compensation expense	(3,828)	(6,096)	(12,356)	(22,470)
Severance and other charges	(14,534)	(1,186)	(18,858)	(14,208)
Change in value of contingent consideration	0	1,532	0	1,532
Unrealized and realized gains (losses)	(10)	0	(973)	0
Net income (loss)	(42,198)	24,088	(89,893)	99,342
International Services
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Severance and other charges			(10,608)
U.S. Services
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Severance and other charges			(8,065)
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	4,532	39,157	31,752	146,752
Operating segments | U.S. Services
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Adjusted EBITDA	(7,933)	18,251	(18,433)	79,914
Operating segments | Tubular Sales
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Adjusted EBITDA	165	15,985	1,343	27,082
Corporate and other
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Adjusted EBITDA	$ 159	$ 12	$ 361	$ 37
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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