Acquisitions and Divestitures (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenues	$ 131,547,000	$ 131,053,000	$ 485,269,000	$ 493,403,000
Operating Income (Loss)	20,228,000	18,648,000	103,488,000	99,981,000
Acquisitions - Additional Information [Line Items]
Transaction-related expenses	3,899,000	0	3,899,000	0
Unregulated Energy [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Operating Income (Loss)	(4,723,000)	(5,056,000)	11,529,000	15,557,000
Regulated Energy [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Operating Income (Loss)	24,912,000	$ 23,663,000	91,828,000	$ 84,202,000
Planet Found
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	4,000,000		4,000,000
Business Combination, Consideration Transferred			9,500,000
Business Combination, Working Capital	100,000		100,000
Business Combination, Contingent Consideration, Liability	900,000		900,000
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	1,100,000		1,100,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets	4,400,000		$ 4,400,000
Acquisitions - Additional Information [Line Items]
Tons of Poultry Litter			1,200
Business Combination, Consideration Transferred			$ 9,500,000
Florida City Gas
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of customers acquired through acquisition			120,000
Business Combination, Consideration Transferred			$ 923,000,000
Acquisitions - Additional Information [Line Items]
Number of customers acquired through acquisition			120,000
Business Combination, Consideration Transferred			$ 923,000,000
Number of Miles of Distribution Mains			3,800
Number of Miles of Transmission Pipe			80
Bridge Loan	965,000,000		$ 965,000,000
Florida City Gas | Regulated Energy [Member]
Acquisitions - Additional Information [Line Items]
Bridge Loan	$ 965,000,000		$ 965,000,000