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Commitments and Contingencies Narrative (Details) (USD $) | 3 Months Ended | 9 Months Ended |  | 9 Months Ended |  | 1 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013 | Dec. 31, 2013 | Sep. 30, 2014 Drilling Rig Leasing Contracts [Member] | Oct. 29, 2014 Subsequent Event [Member] | Oct. 27, 2014 Subsequent Event [Member] Drilling Rig Leasing Contracts [Member] | Sep. 30, 2014 Gooseneck Prospect Acquisition [Member] | Oct. 15, 2014 Gooseneck Prospect Acquisition [Member] Subsequent Event [Member]
Long-term Purchase Commitment [Line Items] |  |  |  |  |  |  |  |  |  |
Potential Deficiency Payment |  |  |  |  |  |  |  |  | $ 24,400,000 | $ 42,600,000
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |
Long-term Purchase Commitment, Amount |  |  |  |  |  | 110,500,000 |  | 24,500,000 |  |
Purchase Commitment, Remaining Minimum Amount Committed |  |  |  |  |  | 72,300,000 |  |  |  |
Liabilities Subject to Compromise, Early Contract Termination Fees | 42,500,000 |  | 42,500,000 |  |  |  | 14,400,000 |  |  |
Gain (Loss) Related to Litigation Settlement | $ 1,579,000 | $ 11,320,000 | $ 31,509,000 | $ 50,765,000 |  |  |  |  |  |

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- Definition Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.25) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 25 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 19 -Article 7 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 17 -Article 9 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.17) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.(a),19) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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