INCOME TAXES - Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Amount
U.S. Federal Statutory Tax Rate	$ 53,699	$ 54,201	$ 53,151
Tax Credits
Renewable Energy Investment Tax Credits	(4,791)	(2,627)	0
Other Tax Credits	(869)	(633)	(305)
Nontaxable or Nondeductible Items	257		252
Nontaxable or Nondeductible Items		(31)
Income tax expense	$ 48,296	$ 50,910	$ 53,098
Percent
U.S. Federal Statutory Tax Rate	21.00%	21.00%	21.00%
Tax Credits
Renewable Energy Investment Tax Credits	(1.90%)	(1.00%)	0.00%
Other Tax Credits	(0.30%)	(0.30%)	(0.10%)
Nontaxable or Nondeductible Items	0.10%		0.10%
Nontaxable or Nondeductible Items		0.00%
Income tax expense	18.90%	19.70%	21.00%
Tax Jurisdiction of Domicile [Extensible Enumeration]	UNITED STATES	UNITED STATES	UNITED STATES