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DEBT - CREDIT FACILITIES AND SHORT TERM DEBT ADDITIONAL INFORMATION (Details) - Term Loan - Committed Credit Facilities Due February 2023 - NJR - USD ($)
Mar. 31, 2023
Feb. 07, 2023
Sep. 30, 2022
Feb. 14, 2022
Feb. 09, 2022
Line of Credit Facility [Line Items]          
Bank revolving credit facilities $ 0 $ 150,000,000 $ 150,000,000    
Amount borrowed       $ 100,000,000 $ 50,000,000