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v3.19.3.a.u2

Derivatives - Narrative (Details) bbl in Thousands | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Feb. 28, 2018 USD ($) | Dec. 31, 2019 $ / bbl bbl | Jun. 30, 2016 USD ($)
Credit Derivatives [Line Items] |  |  |
Derivative contracts, barrels |  | 260 |
Derivative, average fixed interest rate |  | 3.91% |
Option Collars |  |  |
Credit Derivatives [Line Items] |  |  |
Derivative contracts, barrels |  | 75 |
Commodity derivatives |  |  |
Credit Derivatives [Line Items] |  |  |
Derivative contracts, barrels |  | 260 |
Interest Rate Swap |  |  |
Credit Derivatives [Line Items] |  |  |
Notional amount | $ | $ 100,000,000 |  |
Termination of derivative gain (loss) | $ | $ 3,700,000 |  |
Long |  |  |
Credit Derivatives [Line Items] |  |  |
Derivative contracts, barrels |  | 3,360 |
Long | Commodity derivatives |  |  |
Credit Derivatives [Line Items] |  |  |
Derivative contracts, barrels |  | 3,360 |
Short |  |  |
Credit Derivatives [Line Items] |  |  |
Derivative contracts, barrels |  | 3,100 |
Short | Commodity derivatives |  |  |
Credit Derivatives [Line Items] |  |  |
Derivative contracts, barrels |  | 3,100 |
5% Convertible Senior Notes due 2021 |  |  |
Credit Derivatives [Line Items] |  |  |
Debt instrument, interest rate |  | 5.00% | 5.00%
5% Convertible Senior Notes due 2021 | Convertible Debt |  |  |
Credit Derivatives [Line Items] |  |  |
Aggregate principal amount | $ |  |  | $ 115,000,000
Debt instrument, interest rate |  | 5.00% |
Minimum | Option Collars |  |  |
Credit Derivatives [Line Items] |  |  |
Derivative, average price risk option strike price | $ / bbl |  | 48.77 |
Maximum | Option Collars |  |  |
Credit Derivatives [Line Items] |  |  |
Derivative, average price risk option strike price | $ / bbl |  | 65.00 |

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