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Fair Value - Schedule of Activity For Energy Commodity Derivative Assets (Liabilities) Measured At Fair Value Using Significant Unobservable Inputs (Level 3) (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2023 | Mar. 31, 2022
Fair Value Liabilities Measured On Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Other Nonoperating Income (Expense) |
Level 3 [Member] |  |
Fair Value Liabilities Measured On Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Beginning Balance | $ 36,550 | $ (7,771)
Included in regulatory assets/liabilities | 6,783 | 2,499
Recognized in net income | (2,637) |
Purchases | 2,367 |
Settlements | (111) | (925)
Other | (3,000) |
Ending Balance | 39,952 | (6,197)
Natural Gas Exchange Agreements [Member] | Level 3 [Member] |  |
Fair Value Liabilities Measured On Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Beginning Balance | (17,734) | (7,771)
Included in regulatory assets/liabilities | 6,783 | 2,499
Settlements | (111) | (925)
Ending Balance | (11,062) | $ (6,197)
Equity Investment [Member] | Level 3 [Member] |  |
Fair Value Liabilities Measured On Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Beginning Balance | 54,284 |
Recognized in net income | (2,637) |
Purchases and debt conversions | 2,367 |
Other | (3,000) |
Ending Balance | $ 51,014 |

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- Definition Fair value measurement with unobservable inputs reconciliation recurring basis other. + References No definition available. + Details
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- Definition Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Realized And Unrealized Gains Losses Included In Regulatory Assets + References No definition available. + Details
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- Definition Amount of gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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