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Acquisitions And Dispositions (Tables) | 9 Months Ended
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Sep. 30, 2017
Acquisitions And Dispositions [Abstract] |
Preliminary Estimates Of Fair Value Of Identifiable Assets Acquired And Liabilities Assumed |
﻿ |  |
﻿ |  | November 22, 2016
﻿ |  | (in thousands)
﻿Assets acquired: |  |
﻿Wells, platforms and other production facilities | $ | 5,754
﻿Equipment and other |  | 684
﻿Value added tax and other receivables |  | 297
﻿Abandonment funding |  | 546
﻿Accounts receivable - trade |  | 888
﻿Prepayments and other |  | 220
﻿Liabilities assumed: |  |
﻿Asset retirement obligations |  | (1,731)
﻿Accrued liabilities and other |  | (747)
﻿Total identifiable net assets and consideration transferred | $ | 5,911
﻿
Summarized Results Of, And Assets And Liabilities Attributable To, Discontinued Operations | Summarized Results of Discontinued Operations ﻿
﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  | Three Months Ended September 30, |  | Nine Months Ended September 30,
﻿ |  | 2017 |  | 2016 |  | 2017 |  | 2016
﻿ |  | (in thousands)
﻿Operating costs and expenses: |  |  |  |  |  |  |  |  |  |  |  |
﻿Exploration expense |  | $ | — |  | $ | 15,269 |  | $ | — |  | $ | 15,270
﻿Depreciation, depletion and amortization |  |  | — |  |  | 3 |  |  | — |  |  | 9
﻿General and administrative expense |  |  | 174 |  |  | 400 |  |  | 512 |  |  | 994
﻿Bad debt recovery and other |  |  | — |  |  | — |  |  | — |  |  | (7,629)
﻿Total operating costs, expenses and (recovery) |  |  | 174 |  |  | 15,672 |  |  | 512 |  |  | 8,644
﻿Other operating loss, net |  |  | — |  |  | (7) |  |  | — |  |  | (28)
﻿Operating loss |  |  | (174) |  |  | (15,679) |  |  | (512) |  |  | (8,672)
﻿Other income (expense): |  |  |  |  |  |  |  |  |  |  |  |
﻿Interest income |  |  | — |  |  | — |  |  | — |  |  | 3,201
﻿Other, net |  |  | — |  |  | 6 |  |  | (3) |  |  | 551
﻿Total other income (expense) |  |  | — |  |  | 6 |  |  | (3) |  |  | 3,752
﻿Loss from discontinued operations before income taxes |  |  | (174) |  |  | (15,673) |  |  | (515) |  |  | (4,920)
﻿Income tax expense |  |  | — |  |  | 110 |  |  | 3 |  |  | 3,077
﻿Loss from discontinued operations |  | $ | (174) |  | $ | (15,783) |  | $ | (518) |  | $ | (7,997)
﻿ Assets and Liabilities Attributable to Discontinued Operations ﻿
﻿ |  |  |  |  |  |
﻿ |  | September 30, 2017 |  | December 31, 2016
﻿ |  | (in thousands)
﻿ASSETS |  |  |  |  |  |
﻿Current assets: |  |  |  |  |  |
﻿Accounts with partners |  | $ | 2,773 |  | $ | 2,139
﻿Total current assets |  |  | 2,773 |  |  | 2,139
﻿Total assets |  | $ | 2,773 |  | $ | 2,139
﻿ |  |  |  |  |  |
﻿LIABILITIES |  |  |  |  |  |
﻿Current liabilities: |  |  |  |  |  |
﻿Accounts payable |  | $ | 215 |  | $ | 77
﻿Foreign taxes payable |  |  | — |  |  | 3,078
﻿Accrued liabilities and other |  |  | 15,185 |  |  | 15,297
﻿Total current liabilities |  |  | 15,400 |  |  | 18,452
﻿Total liabilities |  | $ | 15,400 |  | $ | 18,452
﻿

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- Definition Acquisitions And Dispositions [Abstract] + References No definition available. + Details
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- Definition Tabular disclosure of information related to a disposal group. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=65878427&loc=SL51721533-107759 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 4B -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721665-107760 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=64827811&loc=d3e1474-107760 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=64827811&loc=d3e1361-107760 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721683-107760 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 3A -URI http://asc.fasb.org/extlink&oid=84176398&loc=SL51724579-110230 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5C -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721675-107760 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 4A -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721663-107760 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=84176398&loc=d3e2941-110230 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5B -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721673-107760 Reference 11: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 3A -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721659-107760 Reference 12: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5A -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721671-107760 Reference 13: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5D -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721677-107760 + Details
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- Definition Tabular disclosure of the amounts recognized as of the acquisition date for each major class of assets acquired and liabilities assumed. May include but not limited to the following: (a) acquired receivables; (b) contingencies recognized at the acquisition date; and (c) the fair value of noncontrolling interests in the acquiree. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
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