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Natural Gas Costs Recoverable or Refundable through Rate Adjustments (Details 8) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
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Accounting Policies [Abstract] |  |
Natural gas costs refundable | $ 1.0 | $ 6.7
Natural gas costs recoverable | $ 141.3 | $ 91.6

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- Definition Carrying amount as of the balance sheet date of capitalized gas costs of a regulated entity that are expected to be recoverable through rate adjustments within one year or the normal operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 340 -Section 25 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=123417213&loc=d3e43603-110378 + Details
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- Definition Gas costs of a regulated entity that are refundable through future rate adjustments. Such costs are a form of a regulatory liabilities and are expected to be refunded in less than one year through rate adjustments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 405 -Section 25 -Paragraph 1 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=6500807&loc=d3e48068-110394 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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