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Drilling Rigs

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Amount of assets held-for-sale that are not part of a disposal group, expected to be sold within a year or the normal operating cycle, if longer.

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Amount of structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service.

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Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations.

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Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.

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The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.

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The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.

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Property and Equipment (Details) $ in Thousands		3 Months Ended			6 Months Ended	12 Months Ended
Property and Equipment (Details) $ in Thousands	Sep. 17, 2014 USD ($)	Dec. 31, 2015 USD ($) drilling_rigs	Jun. 30, 2015 USD ($) drilling_rigs	Dec. 31, 2014 USD ($) drilling_rigs	Dec. 31, 2015 USD ($) drilling_rigs	Dec. 31, 2015 USD ($) drilling_rigs	Dec. 31, 2014 USD ($) drilling_rigs	Dec. 31, 2013 USD ($) drilling_rigs wireline_tubing_units	Sep. 30, 2015 drilling_rigs
Property, Plant and Equipment [Line Items]
Capital Expenditures						$ 142,907	$ 188,121	$ 125,420
Construction in Progress, Gross		$ 18,600		$ 82,700	$ 18,600	18,600	82,700
Interest Costs Capitalized						3,000	700	900
Loss (gain) on dispositions of property and equipment						(4,344)	(1,859)	(1,421)
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal						0	10,702	0
Net property and equipment		702,585		856,541	702,585	702,585	856,541
Assets held for sale		4,619		9,909	$ 4,619	4,619	9,909
Impairment charges						$ 129,152	73,025	54,292
Net Proceeds from Sale of Property, Plant and Equipment						53,600
Proceeds from sale of property and equipment						$ 57,674	8,370	13,836
Fishing and Rental Services
Property, Plant and Equipment [Line Items]
Total Consideration Received on Divestiture of Business	$ 16,100
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	$ 10,700
Disposal Group, Held-for-sale, Not Discontinued Operations [Member]
Property, Plant and Equipment [Line Items]
Impairment charges						9,658	2,000	9,500
Production Services Segment [Member]
Property, Plant and Equipment [Line Items]
Capital Expenditures						29,228	74,652	$ 44,541
Disposed Wireline Units \| wireline_tubing_units								4
Production Services Segment [Member] \| Coiled Tubing Units [Member]
Property, Plant and Equipment [Line Items]
Impairment charges		16,600
Production Services Segment [Member] \| Coiled Tubing Operations [Member]
Property, Plant and Equipment [Line Items]
Impairment of Intangible Assets, Finite-lived		$ 14,300						$ 3,100
Drilling Services Segment [Member]
Property, Plant and Equipment [Line Items]
Capital Expenditures						$ 113,060	$ 112,483	$ 78,708
Drilling Rig, 2015 New-Build \| drilling_rigs		5			5	5			5
Drilling Rigs \| drilling_rigs		31			31	31
Disposed Drilling Rigs \| drilling_rigs						32
Drilling Services Segment [Member] \| Mechanical and Lower Horsepower Drilling Rigs [Member]
Property, Plant and Equipment [Line Items]
Impairment charges				$ 71,000
Drilling Rigs on which Impairment Taken \| drilling_rigs				31			31
Disposed Drilling Rigs \| drilling_rigs						28		10
Drilling Services Segment [Member] \| Non-AC not pad-capable electric drilling rigs [Member] \| Disposal Group, Held-for-sale, Not Discontinued Operations [Member]
Property, Plant and Equipment [Line Items]
Drilling Rigs \| drilling_rigs		1			1	1
Drilling Services Segment [Member] \| Disposal Group, Held-for-sale, Not Discontinued Operations [Member]
Property, Plant and Equipment [Line Items]
Drilling Rigs \| drilling_rigs		4			4	4
Drilling Services Segment [Member] \| Disposal Group, Held-for-sale, Not Discontinued Operations [Member] \| Mechanical and Lower Horsepower Drilling Rigs [Member]
Property, Plant and Equipment [Line Items]
Drilling Rigs \| drilling_rigs		3			3	3
Drilling Services Segment [Member] \| Colombia [Member]
Property, Plant and Equipment [Line Items]
Drilling Rigs on which Impairment Taken \| drilling_rigs			8
Drilling Rigs \| drilling_rigs		8			8	8
Drilling Services Segment [Member] \| Colombia [Member] \| Inventories [Member]
Property, Plant and Equipment [Line Items]
Impairment charges			$ 3,600
Drilling Services Segment [Member] \| Colombia [Member] \| Nonrecoverable Prepaid Taxes [Member]
Property, Plant and Equipment [Line Items]
Impairment charges			6,400
Drilling Services Segment [Member] \| Colombia [Member] \| Drilling Rigs [Member]
Property, Plant and Equipment [Line Items]
Impairment charges			50,200
Drilling Rigs \| drilling_rigs		5		5	5	5	5
Drilling Services Segment [Member] \| United States [Member] \| Pad-capable non-AC drilling rigs [Member]
Property, Plant and Equipment [Line Items]
Impairment charges		$ 18,600
Drilling Services Segment [Member] \| United States [Member] \| Recoverability Test Passed [Member] \| Pad-capable non-AC drilling rigs [Member]
Property, Plant and Equipment [Line Items]
Drilling Rigs \| drilling_rigs									7
Drilling Services Segment [Member] \| United States [Member] \| Non-AC not pad-capable electric drilling rigs [Member]
Property, Plant and Equipment [Line Items]
Impairment charges			$ 9,700
Drilling Rigs on which Impairment Taken \| drilling_rigs			6
Drilling Rigs \| drilling_rigs		2			2	2
Disposed Drilling Rigs \| drilling_rigs					3
Drilling Services Segment [Member] \| United States [Member] \| Pad-capable non-AC drilling rigs [Member]
Property, Plant and Equipment [Line Items]
Drilling Rigs on which Impairment Taken \| drilling_rigs		5			5	5