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v3.4.0.3

Subsequent Events (Details) $ in Thousands |  | 1 Months Ended | 3 Months Ended |
--- | --- | --- | --- | ---
Apr. 01, 2016 USD ($) | Apr. 30, 2016 USD ($) $ / bbl | Mar. 31, 2016 USD ($) | Mar. 31, 2016 USD ($) | Mar. 31, 2015 USD ($) | May. 10, 2016 MBbls
Subsequent Event [Line Items] |  |  |  |  |  |
Repurchase of senior unsecured debt |  |  |  | $ 22,308 | $ 0 |
Senior Unsecured Debt [Member] | Purchased Notes [Member] |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |
Amount of debt extinguished |  |  | $ 29,800 |  |  |
Repurchase of senior unsecured debt |  |  | $ 22,300 |  |  |
Senior Unsecured Debt [Member] | 7.25% senior unsecured notes due February 1, 2019 [Member] |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |
Stated interest rate (as percent) |  |  | 7.25% | 7.25% |  |
Senior Unsecured Debt [Member] | 6.5% senior unsecured notes due November 1, 2021 [Member] |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |
Amount of debt extinguished |  |  | $ 1,000 |  |  |
Stated interest rate (as percent) |  |  | 6.50% | 6.50% |  |
Senior Unsecured Debt [Member] | 6.875% senior unsecured notes due March 15, 2022 [Member] |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |
Amount of debt extinguished |  |  | $ 15,000 |  |  |
Stated interest rate (as percent) |  |  | 6.875% | 6.875% |  |
Subsequent Event [Member] |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |
Proceeds from sale of legacy wells | $ 12,200 |  |  |  |  |
Loans receivable | $ 4,000 |  |  |  |  |
Interest rate of receivable (as percent) | 10.00% |  |  |  |  |
Term of loan receivable | 1 year |  |  |  |  |
Average swap price (in dollars per barrel) | $ / bbl |  | 46.23 |  |  |  |
Subsequent Event [Member] | 2016 Swaps and Three-way costless collars [Member] |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |
Total notional amount of oil (in MBbls) | MBbls |  |  |  |  |  | 153
Subsequent Event [Member] | 2017 Swaps and Three-way costless collars [Member] |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |
Total notional amount of oil (in MBbls) | MBbls |  |  |  |  |  | 1,061
Subsequent Event [Member] | 2018 Swaps and Three-way costless collars [Member] |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |
Total notional amount of oil (in MBbls) | MBbls |  |  |  |  |  | 62
Subsequent Event [Member] | Senior Unsecured Debt [Member] | Purchased Notes [Member] |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |
Amount of debt extinguished |  | $ 46,800 |  |  |  |
Repurchase of senior unsecured debt |  | 34,600 |  |  |  |
Subsequent Event [Member] | Senior Unsecured Debt [Member] | 7.25% senior unsecured notes due February 1, 2019 [Member] |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |
Amount of debt extinguished |  | $ 1,000 |  |  |  |
Stated interest rate (as percent) |  | 7.25% |  |  |  |
Subsequent Event [Member] | Senior Unsecured Debt [Member] | 6.5% senior unsecured notes due November 1, 2021 [Member] |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |
Amount of debt extinguished |  | $ 1,300 |  |  |  |
Stated interest rate (as percent) |  | 6.50% |  |  |  |
Subsequent Event [Member] | Senior Unsecured Debt [Member] | 6.875% senior unsecured notes due March 15, 2022 [Member] |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |
Amount of debt extinguished |  | $ 44,500 |  |  |  |
Stated interest rate (as percent) |  | 6.875% |  |  |  |

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- Definition Aggregate notional amount of derivative expressed in nonmonetary units. For example, the number of barrels specified in a fuel oil forward purchase contract. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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