Employee Benefit Plans (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2025	Dec. 31, 2024
Defined Benefit Plan Disclosure [Line Items]
Deferred compensation obligation	$ 12,500		$ 12,500			$ 9,800
Employee Deferral Rate			80.00%
Deferred Compensation Employer Matching Contribution Rate			6.00%
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year					$ 300
Florida Public Utilities Company Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost	600	$ 600	$ 1,200	$ 1,200
Expected return on plan assets	(700)	(700)	(1,400)	(1,400)
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss)	0	100	0	100
Total periodic cost	(100)	$ 0	(200)	$ (100)
Rabbi Trust Associated With Deferred Compensation Plan
Defined Benefit Plan Disclosure [Line Items]
Deferred compensation obligation	$ 15,900		$ 15,900			$ 14,400