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DEBT - NJNG SHORT-TERM DEBT (Details) - NJNG | Sep. 30, 2024 USD ($) debtInstrument | Aug. 07, 2024 USD ($) | Sep. 30, 2023 USD ($)
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Letter of Credit |  |  |
Line of Credit Facility [Line Items] |  |  |
Number of debt instruments (in debt instruments) | debtInstrument | 2 |  |
Letters of credit outstanding, amount | $ 700,000 |  | $ 700,000
Revolving Credit Facility |  |  |
Line of Credit Facility [Line Items] |  |  |
Line of credit facility, maximum borrowing capacity, incremental increase |  | $ 50,000,000 |
Line of credit facility, maximum borrowing capacity, maximum increase |  | 350,000,000 |
Line of Credit |  |  |
Line of Credit Facility [Line Items] |  |  |
Line of credit facility, maximum borrowing capacity, maximum increase |  | 30,000,000 |
Committed Credit Facilities Due August 2029 | Revolving Credit Facility |  |  |
Line of Credit Facility [Line Items] |  |  |
Line of credit facility, maximum borrowing capacity | $ 250,000,000 | $ 250,000,000 |

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- Definition Line of Credit Facility, Maximum Borrowing Capacity, Incremental Increase + References No definition available. + Details
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Balance Type: | credit
Period Type: | instant

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- Definition Line of Credit Facility, Maximum Borrowing Capacity, Maximum Increase + References No definition available. + Details
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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
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Balance Type: | credit
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481544/470-10-50-6 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481544/470-10-50-6 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(f)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(19)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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- Details
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- Details
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