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v3.23.1

Derivatives and Risk Management - Additional Information (Details) | 3 Months Ended | 12 Months Ended
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Mar. 31, 2023 USD ($) MMBTU MWh | Dec. 31, 2022 USD ($) MWh MMBTU
Canadian [Member] |  |
Derivative [Line Items] |  |
Number of days Canadian currency prices are settled with U.S. dollars | 60 days |
Interest Rate Swap [Member] |  |
Derivative [Line Items] |  |
Cash collateral posted | $ | $ 0 | $ 0
Letters of credit outstanding | $ | $ 0 | $ 0
Purchase [Member] | Physical [Member] | Electric Derivative [Member] |  |
Derivative [Line Items] |  |
Expected deliveries of energy commodity derivatives after four years | MWh | 0 |
Expected deliveries of energy commodity derivatives after three years | MWh |  | 0
Purchase [Member] | Physical [Member] | Gas Derivative [Member] |  |
Derivative [Line Items] |  |
Expected deliveries of energy commodity derivatives after four years | MMBTU | 0 |
Expected deliveries of energy commodity derivatives after three years | MMBTU |  | 0
Purchase [Member] | Financial [Member] | Electric Derivative [Member] |  |
Derivative [Line Items] |  |
Expected deliveries of energy commodity derivatives after four years | MWh | 0 |
Expected deliveries of energy commodity derivatives after three years | MWh |  | 0
Purchase [Member] | Financial [Member] | Gas Derivative [Member] |  |
Derivative [Line Items] |  |
Expected deliveries of energy commodity derivatives after four years | MMBTU | 0 |
Expected deliveries of energy commodity derivatives after three years | MMBTU |  | 0
Sales [Member] | Physical [Member] | Electric Derivative [Member] |  |
Derivative [Line Items] |  |
Expected deliveries of energy commodity derivatives after four years | MWh | 0 |
Expected deliveries of energy commodity derivatives after three years | MWh |  | 0
Sales [Member] | Physical [Member] | Gas Derivative [Member] |  |
Derivative [Line Items] |  |
Expected deliveries of energy commodity derivatives after four years | MMBTU | 0 |
Expected deliveries of energy commodity derivatives after three years | MMBTU |  | 0
Sales [Member] | Financial [Member] | Electric Derivative [Member] |  |
Derivative [Line Items] |  |
Expected deliveries of energy commodity derivatives after four years | MWh | 0 |
Expected deliveries of energy commodity derivatives after three years | MWh |  | 0
Sales [Member] | Financial [Member] | Gas Derivative [Member] |  |
Derivative [Line Items] |  |
Expected deliveries of energy commodity derivatives after four years | MMBTU | 0 |
Expected deliveries of energy commodity derivatives after three years | MMBTU |  | 0

X
- Definition Energy commodity derivatives expected to be settle after year four. + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

X
- Definition Energy commodity derivatives expected to be settle after year three. + References No definition available. + Details
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Data Type: | dtr-types:energyItemType
Balance Type: | na
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- Definition Number of period currency prices are settled with domestic country currency. + References No definition available. + Details
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X
- Definition The aggregate fair value of assets that are already posted, at the end of the reporting period, as collateral for derivative instruments with credit-risk-related contingent features. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4H -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5624258-113959 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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Data Type: | xbrli:stringItemType
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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
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- Details
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