Rate and Regulatory Matters (Details) - Middlesex [Member] - USD ($) $ in Millions			1 Months Ended	3 Months Ended
	Jan. 02, 2023	Jan. 02, 2022	Dec. 31, 2021	Mar. 31, 2022	Nov. 30, 2021
Maturity Less than 30 Days [Member]
Regulatory Liability [Line Items]
Escrow account					$ 1.7
New Jersey Board of Public Utilities [Member]
Regulatory Liability [Line Items]
Approved increase in annual operating revenues		$ 20.7	$ 27.7	$ 3.7
Base rate amount			$ 513.5
Return on equity			9.60%
New Jersey Board of Public Utilities [Member] | Scenario Forecast [Member]
Regulatory Liability [Line Items]
Approved increase in annual operating revenues	$ 70.0