INVESTMENTS IN UNCONSOLIDATED AFFILIATES - Summary of Impairment (Details) $ in Thousands	3 Months Ended		12 Months Ended
	Dec. 31, 2023 USD ($) project	Jun. 30, 2023 USD ($)	Dec. 31, 2023 USD ($) project	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Schedule of Equity Method Investments [Line Items]
Number of offshore wind projects | project	3		3
Impairment Charges, pre-tax	$ 1,766,000	$ 401,000	$ 2,167,000	$ 0	$ 0
Tax Benefit	(144,000)	(70,000)	(214,000)
Equity method investment, other than temporary impairment, after tax	1,622,000	331,000	1,953,000
Lower expected sales proceeds across all three wind projects
Schedule of Equity Method Investments [Line Items]
Impairment Charges, pre-tax	525,000	401,000	926,000
Expected cost overruns not recovered in the sales price
Schedule of Equity Method Investments [Line Items]
Impairment Charges, pre-tax	441,000	0	441,000
Loss of sales value from the sale price offered by GIP, including loss of ITC adders value, cancellation costs and other impacts assuming Sunrise Wind project is abandoned
Schedule of Equity Method Investments [Line Items]
Impairment Charges, pre-tax	$ 800,000	$ 0	$ 800,000