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Net Proceeds from Sale of Property, Plant and Equipment, including cash and short term receivable received

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Wireline Units

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Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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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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The carrying amount of consideration received or receivable as of the balance sheet date on potential earnings that were not recognized as revenue in conformity with GAAP, and which are expected to be recognized as such within one year or the normal operating cycle, if longer, including sales, license fees, and royalties, but excluding interest income.

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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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Property and Equipment (Details) $ in Thousands	3 Months Ended			9 Months Ended
Property and Equipment (Details) $ in Thousands	Sep. 30, 2016 USD ($) drilling_rigs wireline_tubing_units	Jun. 30, 2016 USD ($)	Sep. 30, 2015 USD ($) drilling_rigs	Sep. 30, 2016 USD ($) drilling_rigs wireline_tubing_units	Sep. 30, 2015 USD ($) drilling_rigs	Dec. 31, 2015 USD ($)
Property, Plant and Equipment [Line Items]
Capital Expenditures				$ 24,000	$ 130,700
Construction in Progress, Gross	$ 5,600			5,600		$ 18,600
Interest Costs Capitalized				200	2,500
Revenue Recognition
Deferred Revenue, Current	1,157			1,157		6,222
Gain (Loss) on Dispositions of Property Plant and Equipment, net	328		$ (605)	420	2,639
Net property and equipment	629,164			629,164		702,585
Assets held for sale	6,243			6,243		$ 4,619
Impairment charges	4,262		2,329	4,262	79,648
Proceeds from sale of property and equipment				2,743	37,803
Disposal Group, Held-for-sale, Not Discontinued Operations [Member]
Revenue Recognition
Impairment charges	3,344		2,329	3,344	9,858
Drilling Services Segment [Member]
Property, Plant and Equipment [Line Items]
Capital Expenditures	$ 7,785		30,757	$ 15,330	$ 106,447
Revenue Recognition
Drilling Rig, 2015 New-Build \| drilling_rigs	5			5
Impaired Assets to be Disposed of by Method Other than Sale, Carrying Value of Asset	$ 4,000			$ 4,000
Expected Insurance Proceeds for Damaged Drilling Rig	3,100
Estimated Loss on Disposed Damaged Components Net of Estimated Insurance Recovery	$ 900
Impairment charges		$ 69,800
Drilling Rigs \| drilling_rigs	31			31
Drilling Services Segment [Member] \| Drilling Rigs Sold During the Period [Member]
Revenue Recognition
Net Proceeds from Sale of Property, Plant and Equipment					36,300
Drilling Services Segment [Member] \| Mechanical and Lower Horsepower Drilling Rigs [Member]
Revenue Recognition
Disposed Drilling Rigs \| drilling_rigs					28
Drilling Services Segment [Member] \| Drilling Rigs [Member]
Revenue Recognition
Drilling Rigs \| drilling_rigs	4			4
Drilling Services Segment [Member] \| Colombia [Member]
Revenue Recognition
Impairment charges	$ 0		$ 0	$ 0	$ 60,130
Drilling Rigs \| drilling_rigs	8		8	8	8
Production Services Segment [Member]
Property, Plant and Equipment [Line Items]
Capital Expenditures	$ 2,070		$ 4,633	$ 8,312	$ 23,786
Revenue Recognition
Wireline Units \| wireline_tubing_units	114			114
Production Services Segment [Member] \| Wireline Units [Member]
Revenue Recognition
Wireline Units \| wireline_tubing_units	13			13
Geographic Distribution, Domestic [Member] \| Drilling Services Segment [Member]
Revenue Recognition
Impairment charges	$ 918		$ 0	$ 918	$ 9,660
Drilling Rigs \| drilling_rigs	23			23