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v3.20.1

Derivative Instruments - Outstanding Commodity Derivatives (Details) - Natural gas (NYMEX) | 1 Months Ended | 3 Months Ended
--- | --- | ---
Apr. 30, 2020 MMBTU $ / MMBTU | Mar. 31, 2020 MMBTU $ / MMBTU
Derivative [Line Items] |  |
Volume (in Mmbtu) | MMBTU |  | 21,400,000
Swaps Weighted-Average (in usd per Mmbtu) |  | 2.27
Volume (in Mmbtu) | MMBTU |  | 21,400,000
Floor, Range (in usd per Mmbtu) |  | 0
Floor, Weighted-Average (in usd per Mmbtu) |  | 2.15
Ceiling, Weighted-Average (in usd per Mmbtu) |  | 2.38
Swaps Weighted-Average (in usd per Mmbtu) |  |
Minimum |  |
Derivative [Line Items] |  |
Ceiling, Range (in usd per Mmbtu) |  | 2.36
Maximum |  |
Derivative [Line Items] |  |
Ceiling, Range (in usd per Mmbtu) |  | 2.38
Subsequent Event |  |
Derivative [Line Items] |  |
Volume (in Mmbtu) | MMBTU | 73,600,000 |
Floor, Weighted-Average (in usd per Mmbtu) | 2.02 |
Ceiling, Weighted-Average (in usd per Mmbtu) | 2.20 |
Minimum | Subsequent Event |  |
Derivative [Line Items] |  |
Floor, Range (in usd per Mmbtu) | 1.90 |
Ceiling, Range (in usd per Mmbtu) | 2.10 |
Maximum | Subsequent Event |  |
Derivative [Line Items] |  |
Floor, Range (in usd per Mmbtu) | 2.15 |
Ceiling, Range (in usd per Mmbtu) | 2.32 |
Subsequent Event |  |
Derivative [Line Items] |  |
Volume (in Mmbtu) | MMBTU | 18,400,000 |
Swaps Weighted-Average (in usd per Mmbtu) | 2.10 |

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- Definition The average floor rate on a group of price risk derivatives such as floors or collars. A payment or receipt is triggered if the market rate falls below the floor rate on the contract. + References No definition available. + Details
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- Definition The cap rate on a price risk derivative such as a cap or collar. A payment or receipt is triggered if the market rate exceeds the cap rate on the contract. + References No definition available. + Details
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