DEBT - Narrative - Tax-Exempt Financings (Details) - Unsecured Debt - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025	Mar. 31, 2025
Debt Instrument [Line Items]
Principal amount of debt	$ 273,500
Vermont Bonds 2022A-1
Debt Instrument [Line Items]
Principal amount of debt	$ 25,000	$ 25,000
Aggregate principal amount issued			$ 25,000
Stated interest rate	4.375%		4.375%