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FRESH-START ACCOUNTING-FV adjustments to other operating properties (Details) $ in Thousands | Sep. 09, 2016 USD ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($)
--- | --- | --- | --- | ---
Other operating property and equipment: |  |  |  |
Asset retirement obligations |  | $ 6,914 | $ 4,368 | $ 32,375
Fresh Start Adjustments |  |  |  |
Other operating property and equipment: |  |  |  |
Weighted average cost of capital rate (as a percent) | 10.50 |  |  |
Asset retirement obligations | $ 32,500 |  |  |
Fair value of asset retirement obligation current | 300 |  |  |
Fair value of redeemable noncontrolling interest | 41,100 |  |  |
Fair Value of embedded derivative | $ 0 |  |  |
Fresh Start Adjustments | Embedded Derivative |  |  |  |
Other operating property and equipment: |  |  |  |
Weighted average cost of capital rate (as a percent) | 12.5 |  |  |
Fresh Start Adjustments | Minimum |  |  |  |
Other operating property and equipment: |  |  |  |
Risk free rate (as a percent) | 5.50% |  |  |
Fresh Start Adjustments | Maximum |  |  |  |
Other operating property and equipment: |  |  |  |
Risk free rate (as a percent) | 6.60% |  |  |
Fresh Start Adjustments | Drilling rig commitments |  |  |  |
Other operating property and equipment: |  |  |  |
Intangible liability for rig contract | $ 8,300 |  |  |
Intangible current liability for rig contract | $ 4,500 |  |  |
Fresh Start Adjustments | Other operating property and equipment |  |  |  |
Other operating property and equipment: |  |  |  |
Weighted average cost of capital rate (as a percent) | 9.5 |  |  |

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- Definition The fair value of current portion of liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. + References No definition available. + Details
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- Definition Represents the intangible current liability to adjust the Company's active rig contract to fair value which will be amortized over the remaining life of the contract. + References No definition available. + Details
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- Definition The fair value as of the reporting date of noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. The noncontrolling interest holder's ownership (or holders' ownership) may be in the form of common shares (regardless of class), limited partnership units (regardless of class), non-preferential membership interests, or any other form of common equity regardless of investee entity legal form. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 3A -Subparagraph (12)(c) -URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 3A -Subparagraph (16)(c) -URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 3A -Subparagraph 14 -URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 3A -Subparagraph 15 -URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764 + Details
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