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Derivative Instruments (Tables) | 9 Months Ended
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Sep. 30, 2025
Derivative Instruments and Hedging Activities Disclosure [Abstract] |
Schedule of Derivative Instruments [Table Text Block] | As of September 30, 2025, the volume of our commodity derivative contracts were as follows:
Business unit |  | Commodity |  | Contract Type |  | Quantity hedged (in millions) |  | Designation |  | Longest Expiration date of hedge
Sharp |  | Propane (gallons) |  | Purchases |  | 11.7 |  | Cash flow hedges |  | June 2028
Fair Values of Derivative Contracts Recorded in Condensed Consolidated Balance Sheet | September 30, 2025 and December 31, 2024, are as follows:
|  | Derivative Assets
|  |  |  | Fair Value As Of
(in millions) |  | Balance Sheet Location |  | September 30, 2025 |  | December 31, 2024
Derivatives designated as cash flow hedges |  |  |  |  |  |
Propane swap agreements |  | Derivative assets, at fair value |  | $ | 0.1 |  |  | $ | 0.6 |
Interest rate swap agreements |  | Derivative assets, at fair value |  | — |  |  | 0.1 |
Total Derivative Assets (1) |  |  |  | $ | 0.1 |  |  | $ | 0.7 |
(1) Derivative assets, at fair value, include $0.1 million in current assets in the condensed consolidated balance sheet at September 30, 2025 and $0.6 million at December 31, 2024, with the remainder of the balances classified as long-term.
|  | Derivative Liabilities
|  |  |  | Fair Value As Of
(in millions) |  | Balance Sheet Location |  | September 30, 2025 |  | December 31, 2024
Derivatives designated as cash flow hedges |  |  |  |  |  |
Propane swap agreements |  | Derivative liabilities, at fair value |  | $ | 0.3 |  |  | $ | — |
Interest rate swap agreements |  | Derivative liabilities, at fair value |  | 1.5 |  |  | 0.1 |
Total Derivative Liabilities (1) |  |  |  | $ | 1.8 |  |  | $ | 0.1 |
(1) Derivative liabilities, at fair value, include $0.5 million in current liabilities in the condensed consolidated balance sheet at September 30, 2025 and no current derivative liabilities at December 31, 2024, with the remainder of the balances classified as long-term.
Effects of Gains and Losses from Derivative Instruments on Condensed Consolidated Financial Statements | The effects of gains and losses from derivative instruments on the condensed consolidated statements of income are as follows:
|  |  |  | Amount of Gain (Loss) on Derivatives
|  | Location of Gain |  | For the Three Months Ended September 30, |  | For the Nine Months Ended September 30,
(in millions) |  | (Loss) on Derivatives |  | 2025 |  | 2024 |  | 2025 |  | 2024
Derivatives designated as cash flow hedges |  |  |  |  |  |  |  |  |  |
Propane swap agreements |  | Revenues |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | (0.3) |
Propane swap agreements |  | Unregulated propane and natural gas costs |  | (0.1) |  |  | (0.1) |  |  | 0.7 |  |  | 1.3 |
Interest rate swap agreements |  | Interest expense |  | 0.1 |  |  | 0.3 |  |  | 0.3 |  |  | 0.6 |
Total |  |  |  | $ | — |  |  | $ | 0.2 |  |  | $ | 1.0 |  |  | $ | 1.6 |

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- Definition Tabular disclosure of the location and amount of derivative instruments and nonderivative instruments designated as hedging instruments reported before netting adjustments, and the amount of gain (loss) on derivative instruments and nonderivative instruments designated and qualified as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4CC -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4CC Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4C -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4C Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4A -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4A -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4E + Details
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- Definition Tabular disclosure of the location and fair value amounts of derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) reported in the statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 182 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480401/815-10-55-182 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4A -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4E Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4B -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4B + Details
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- Definition Tabular disclosure of pertinent information about a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item. + References No definition available. + Details
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