COMMITMENTS AND CONTINGENCIES (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Commitments and Contingencies [Line Items]
Number Of Former Manufactured Gas Sites Where We Own Or Retain Legal Responsibility For Environmental Conditions	12
Number of sites where regulatory closure has been achieved	5
Deferred MGP Costs, Maximum	$ 15,000
Regulatory Asset for Costs Associated with Manufactured Gas Sites	$ 30,500	$ 32,000
Number of sites with ongoing groundwater monitoring	7
Accrual for Environmental Loss Contingencies	$ 13,900	$ 14,300
Insurance proceeds related to MGP sites	$ 1,500