Stockholders' Equity Additional Details (Details) - USD ($) $ / shares in Units, $ in Millions		12 Months Ended
		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Nov. 30, 2023
Accumulated Other Comprehensive Income (Loss) [Line Items]
Preferred Stock, Shares Authorized		2,000,000.0	2,000,000
Preferred Stock, Par or Stated Value Per Share		$ 10.00	$ 10
Issuance of stock for Dividend Reinvestment Plan		$ 72.5
Proceeds from Issuance or Sale of Equity		72.6	$ 366.4	$ 4.5
Equity Issued in Business Combination, Fair Value Disclosure		366.4
Florida City Gas
Accumulated Other Comprehensive Income (Loss) [Line Items]
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares	[1],[2]		4,439,000
Common Stock [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Shares Issued, Price Per Share					$ 82.72
Maximum [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Proceeds from Stock Plans		$ 100.0	$ 75.0

[1] 2.0 million shares of preferred stock at $0.01 par value per share have been authorized. No preferred shares have been issued or are outstanding; accordingly, no information has been included in the Consolidated Statements of Stockholders’ Equity.

[2] Includes 114 thousand, 108 thousand and 108 thousand shares at December 31, 2024, 2023 and 2022, respectively, held in a Rabbi Trust related to our Non-Qualified Deferred Compensation Plan