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v3.20.2

Derivatives - Additional Information (Details) bbl in Thousands | 9 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Sep. 30, 2020 $ / bbl bbl | Dec. 31, 2021 bbl | Sep. 30, 2019
Credit Derivatives [Line Items] |  |  |
Derivative contracts, barrels | 1,850 |  |
Average fixed interest rate | 3.91% |  |
5.00% Convertible Senior Notes due 2021 |  |  |
Credit Derivatives [Line Items] |  |  |
Debt instrument, interest rate | 5.00% |  |
5.00% Convertible Senior Notes due 2021 | Convertible Debt |  |  |
Credit Derivatives [Line Items] |  |  |
Debt instrument, interest rate | 5.00% |  | 5.00%
Futures |  |  |
Credit Derivatives [Line Items] |  |  |
Derivative contracts, barrels | 450 |  |
Swaps |  |  |
Credit Derivatives [Line Items] |  |  |
Derivative contracts, barrels | 2,300 |  |
Option Collars |  |  |
Credit Derivatives [Line Items] |  |  |
Derivative contracts, barrels | 75 |  |
Purchases |  |  |
Credit Derivatives [Line Items] |  |  |
Derivative contracts, barrels | 3,450 |  |
Purchases | Futures |  |  |
Credit Derivatives [Line Items] |  |  |
Derivative contracts, barrels | 450 |  |
Purchases | Swaps |  |  |
Credit Derivatives [Line Items] |  |  |
Derivative contracts, barrels | 3,000 |  |
Sales |  |  |
Credit Derivatives [Line Items] |  |  |
Derivative contracts, barrels | 5,300 |  |
Sales | Futures |  |  |
Credit Derivatives [Line Items] |  |  |
Derivative contracts, barrels | 0 |  |
Sales | Swaps |  |  |
Credit Derivatives [Line Items] |  |  |
Derivative contracts, barrels | 5,300 |  |
Minimum | Option Collar - Floor |  |  |
Credit Derivatives [Line Items] |  |  |
Derivative, average price risk option strike price | $ / bbl | 36.50 |  |
Minimum | Option Collar - Ceiling |  |  |
Credit Derivatives [Line Items] |  |  |
Derivative, average price risk option strike price | $ / bbl | 60.00 |  |
Maximum | Option Collar - Floor |  |  |
Credit Derivatives [Line Items] |  |  |
Derivative, average price risk option strike price | $ / bbl | 48.77 |  |
Maximum | Option Collar - Ceiling |  |  |
Credit Derivatives [Line Items] |  |  |
Derivative, average price risk option strike price | $ / bbl | 65.00 |  |
Forecast | Option Collars |  |  |
Credit Derivatives [Line Items] |  |  |
Derivative contracts, barrels |  | 25 |

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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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