Derivative Instruments (Tables)

3 Months Ended

Mar. 31, 2025

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Derivative Instruments [Table Text Block]

As of March 31, 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	6.3	Cash flow hedges	March 2027

Fair Values of Derivative Contracts Recorded in Condensed Consolidated Balance Sheet

March 31, 2025 and December 31, 2024, are as follows: 

	Derivative Assets
		Fair Value As Of
(in millions)	Balance Sheet Location	March 31, 2025		December 31, 2024
Derivatives designated as cash flow hedges
Propane swap agreements	Derivative assets, at fair value	$	0.6	$	0.6
Interest rate swap agreements	Derivative assets, at fair value	0.1		0.1
Total Derivative Assets (1)		$	0.7	$	0.7

 (1) Derivative assets, at fair value, include $0.6 million in current assets in the condensed consolidated balance sheet at March 31, 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	March 31, 2025		December 31, 2024
Derivatives designated as cash flow hedges
Propane swap agreements	Derivative liabilities, at fair value	$	—	$	—
Interest rate swap agreements	Derivative liabilities, at fair value	1.0		0.1
Total Derivative Liabilities (1)		$	1.0	$	0.1

(1) Derivative liabilities, at fair value, include $0.1 million in current liabilities in the condensed consolidated balance sheet at March 31, 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 March 31,
(in millions)	(Loss) on Derivatives	2025		2024
Derivatives designated as cash flow hedges
Propane swap agreements	Revenues	$	—	$	(0.3)
Propane swap agreements	Unregulated propane and natural gas costs	0.7		1.4
Interest rate swap agreements	Interest expense	0.1		0.2
Total		$	0.8	$	1.3