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Financial Instruments (Narrative) (Details) Bcf in Billions | 3 Months Ended | 12 Months Ended | 36 Months Ended |
--- | --- | --- | --- | ---
Dec. 31, 2024 USD ($) counterparty Bcf | Dec. 31, 2023 USD ($) | Dec. 31, 2025 USD ($) payment | Sep. 30, 2024 USD ($)
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Foreign Currency Forward Contract Hedge Duration | 6 years |  |  |
After tax net hedging losses in accumulated other comprehensive income (loss) | $ (4,900,000) |  |  |
After Tax Net Hedging Gains Reclassified Within Twelve Months | 1,900,000 |  |  |
Fair market value of derivative liability with a credit-risk related contingency | 5,900,000 |  |  |
Hedging Collateral Deposits | $ 0 |  |  |
Over the Counter Swaps, No Cost Collars and Foreign Currency Forward Contracts |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Number of counterparties in which the company holds over-the-counter swap positions | counterparty | 18 |  |  |
Number of counterparties in net gain position | counterparty | 8 |  |  |
Credit risk exposure per counterparty | $ 2,500,000 |  |  |
Maximum Credit Risk Exposure Per Counterparty | 9,300,000 |  |  |
Collateral Received by the Company | $ 0 |  |  |
Number of counterparties with a common credit-risk related contingency | counterparty | 12 |  |  |
Foreign Currency Contracts |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Hedging Notional Amount of Forecasted Transportation Costs | $ 51,200,000 |  |  |
California Asset Sale | Forecast |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Maximum Annual Contingent Payment |  |  | $ 10,000,000 |
Amount of Each Incremental Contingency Payment |  |  | 1,000,000 |
Incremental price, exceeding ICE Brent Average Price (in dollars per barrel) |  |  | 1 |
California Asset Sale | Minimum |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
ICE Brent Average (in dollars per barrel) |  | $ 95 |  |
California Asset Sale | Minimum | Forecast |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
ICE Brent Average (in dollars per barrel) |  |  | $ 95 |
California Asset Sale | Maximum | Forecast |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Number Of Annual Contingent Payments | payment |  |  | 3 |
ICE Brent Average (in dollars per barrel) |  |  | $ 105 |
California Asset Sale | Present Value of Contingent Consideration |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Value of Contingent Consideration Received from Sale of Assets | 400,000 |  |  | $ 700,000
California Asset Sale | Mark to Market of Contingent Consideration |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Mark-to-Market Adjustment for Contingent Consideration | $ (300,000) |  |  |
Cash Flow Hedges |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Hedge Duration | 5 years |  |  |
Cash Flow Hedges | Natural Gas Bcf |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Nonmonetary notional amount of price risk cash flow hedge derivatives, natural gas | Bcf | 388.2 |  |  |

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