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Severance and Other Charges (Details) $ in Thousands		3 Months Ended		9 Months Ended
	Mar. 31, 2015 employee	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)
Restructuring Reserve [Roll Forward]
Beginning balance, December 31, 2014				$ 0
Additions for costs expensed		$ 1,186	$ 0	14,208	$ 0
Other adjustments				(40)
Severance and other payments				(7,665)
Reclass to equity for accelerated RSU grants				(2,283)
Ending balance, September 30, 2015		4,220		4,220
Restructuring Charges
Restructuring Reserve [Roll Forward]
Additions for costs expensed				14,200
International Services
Restructuring Reserve [Roll Forward]
Beginning balance, December 31, 2014				0
Additions for costs expensed				493
Other adjustments				0
Severance and other payments				(493)
Reclass to equity for accelerated RSU grants				0
Ending balance, September 30, 2015		0		0
U.S. Services
Restructuring Reserve [Roll Forward]
Beginning balance, December 31, 2014				0
Additions for costs expensed				12,569
Other adjustments				(40)
Severance and other payments				(6,274)
Reclass to equity for accelerated RSU grants				(2,283)
Ending balance, September 30, 2015		3,972		3,972
Tubular Sales
Restructuring Reserve [Roll Forward]
Beginning balance, December 31, 2014				0
Additions for costs expensed				1,146
Other adjustments				0
Severance and other payments				(898)
Reclass to equity for accelerated RSU grants				0
Ending balance, September 30, 2015		$ 248		$ 248
Minimum
Restructuring Cost and Reserve [Line Items]
Number of positions eliminated | employee	600
Maximum
Restructuring Cost and Reserve [Line Items]
Number of positions eliminated | employee	800

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Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

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