Employee Benefit Plans - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	$ 16.8		$ 16.8		$ 14.4
Deferred compensation obligation	12.5		12.5		$ 9.8
Florida Public Utilities Company Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss)	$ 0.1	$ 0.1	$ 0.1	$ 0.2