Proceeds from divestiture of businesses
Proceeds from Divestiture of Businesses
Total capitalization
Capitalization, Long-Term Debt and Equity
Steckman Ridge
Steckman Ridge [Member]
NJR Steckman Ridge Storage Company, which holds the Company's 50 percent combined interest in Steckman Ridge GP, LLC and Steckman Ridge, LP (collectively, Steckman Ridge), a natural gas storage facility.
Financial commodity contracts
Commodity Contract [Member]
Expected return on plan assets
Defined Benefit Plan, Expected Return (Loss) on Plan Assets
Award Timing Predetermined
Award Timing Predetermined [Flag]
Entity File Number
Entity File Number
Premium on Common Stock
Additional Paid-in Capital [Member]
Tabular List, Table
Tabular List [Table Text Block]
Recently Adopted Updates to the Accounting Standards Codification and Other Recent Updates to the Accounting Standards Codification
New Accounting Pronouncements, Policy [Policy Text Block]
Property, plant and equipment, net
Public Utilities And Other Property, Plant and Equipment, Net
Public Utilities And Other Property, Plant and Equipment, Net
Schedule of Fair Value, by Balance Sheet Grouping
Fair Value, by Balance Sheet Grouping [Table Text Block]
Position [Axis]
Position [Axis]
Measurement Basis [Axis]
Measurement Basis [Axis]
Storage and Transportation and other
Storage And Transportation And Other [Member]
Storage And Transportation And Other
Adjustment to Compensation:
Adjustment to Compensation [Axis]
RELATED PARTY TRANSACTIONS
Related Party Transactions Disclosure [Text Block]
Named Executive Officers, Footnote
Named Executive Officers, Footnote [Text Block]
REGULATION
Public Utilities Disclosure [Text Block]
REVENUE
Revenue from Contract with Customer [Text Block]
Accounts payable and other
Increase (Decrease) in Accounts Payable, Trade
NJCEP
NJCEP [Member]
NJCEP [Member]
Contributions to postemployment benefit plans
Payment for Pension and Other Postretirement Benefits
Adjustment to Compensation, Amount
Adjustment to Compensation Amount
Pension
Pension Plan [Member]
Other current assets and liabilities
Increase (Decrease) in Other Operating Assets
Consolidation
Consolidation, Policy [Policy Text Block]
Total lease liabilities
Lease, Liability
Lease, Liability
Changes in:
Changes in Operating Activities [Abstract]
Changes In Operating Activities Statement of Cash Flows heading
Employee Stock Option
Share-Based Payment Arrangement, Option [Member]
Prepaid taxes
Prepaid Taxes
Cash and Cash Equivalents
Cash and Cash Equivalents, Policy [Policy Text Block]
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]
Cash dividend declared
Dividends, Common Stock, Cash
Common stock equity
Balance as of beginning of period
Balance as of end of period
Equity, Attributable to Parent
Other comprehensive income, net of tax
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Insider Trading Policies and Procedures [Line Items]
Common stock, shares authorized (in shares)
Common Stock, Shares Authorized
Restricted broker margin accounts
Increase (Decrease) in Payable to Broker-Dealer and Clearing Organization
CAPITALIZATION AND LIABILITIES
Liabilities and Equity [Abstract]
State
State and Local Jurisdiction [Member]
Cover [Abstract]
Cover [Abstract]
Portion at Fair Value Measurement
Portion at Fair Value Measurement [Member]
Maximum
Maximum [Member]
PROPERTY, PLANT AND EQUIPMENT
Property, Plant and Equipment, Net [Abstract]
Expended, net of recoveries
Enviromental Remediation Costs Expended, Net of Recoveries [Member]
Carrying amount as of the balance sheet date of environmental remediation costs expended, net of recoveries recognized in noncurrent regulatory assets
Deferred revenue
Deferred Gain, Noncurrent
Deferred Gain, Noncurrent
Income Tax Contingency [Line Items]
Income Tax Contingency [Line Items]
Software Costs
Internal Use Software, Policy [Policy Text Block]
Non-PEO NEO Average Total Compensation Amount
Non-PEO NEO Average Total Compensation Amount
Debt Instrument [Line Items]
Debt Instrument [Line Items]
Adjustment to Non-PEO NEO Compensation Footnote
Adjustment to Non-PEO NEO Compensation Footnote [Text Block]
Retirement Benefits [Abstract]
Retirement Benefits [Abstract]
Forgone Recovery due to Disqualification of Tax Benefits, Amount
Forgone Recovery due to Disqualification of Tax Benefits, Amount
Non-Rule 10b5-1 Arrangement Terminated
Non-Rule 10b5-1 Arrangement Terminated [Flag]
Notional amount
Derivative, Nonmonetary Notional Amount, Volume
Entity Shell Business
Entity Shell Company
Schedule of Long-term Debt Instruments [Table]
Schedule of Long-Term Debt Instruments [Table]
Proceeds from sale of assets
Proceeds from Sale of Property, Plant, and Equipment
Loss Contingency Nature [Axis]
Loss Contingency Nature [Axis]
Statement of Stockholders' Equity [Abstract]
Statement of Stockholders' Equity [Abstract]
Operating Segments
Operating Segments [Member]
Schedule of Natural Gas in Storage
Schedule of Utility Inventory [Table Text Block]
Award Timing MNPI Considered
Award Timing MNPI Considered [Flag]
Recovery from third party of environmental remediation cost, period
Site Contingency, Recovery from Third Party of Environmental Remediation Cost, Period
Site Contingency, Recovery from Third Party of Environmental Remediation Cost, Period
Line of Credit Facility [Table]
Line of Credit Facility [Table]
Service contracts
Service Contracts [Member]
Service Contracts [Member]
Letter of Credit
Letter of Credit [Member]
RAC
RAC [Member]
RAC [Member]
Operating lease liabilities
Operating lease liabilities
Operating Lease, Liability, Current
Interest on lease liabilities
Finance Lease, Interest Expense
Document Fiscal Period Focus
Document Fiscal Period Focus
Loans and Notes Receivable
Receivable [Policy Text Block]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Derivatives, Fair Value [Line Items]
Derivatives, Fair Value [Line Items]
Natural Gas in Storage, Bcf
Energy Related Inventory, Natural Gas in Storage (BCF)
Natural Gas in Storage Nonmonetary Number of Billion Cubic Feet of Gas in Storage as of the balance sheet date.
Award Timing Method
Award Timing Method [Text Block]
Award Type
Award Type [Axis]
Other noncurrent regulatory liabilities
Other Regulatory Noncurrent Liability [Member]
Carrying amount as of the balance sheet date of other noncurrent regulatory liabilities.
Sublease Agreement One
Sublease Agreement One [Member]
Sublease Agreement One
Investment, Name [Domain]
Investment, Name [Domain]
Investment, Name [Domain]
Trading Symbol
Trading Symbol
Incentive compensation plan (in shares)
Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture
Entity Address, City or Town
Entity Address, City or Town
Short-term Debt, Type [Domain]
Short-Term Debt, Type [Domain]
Utility plant, at cost
Utility Plant, At Cost [Member]
Utility Plant, At Cost
Utility plant, at cost
Public Utilities, Property, Plant and Equipment, Plant in Service
Non-PEO NEO Average Compensation Actually Paid Amount
Non-PEO NEO Average Compensation Actually Paid Amount
Payments of short-term debt, net
Proceeds from (Repayments of) Short-Term Debt
Statement of Income Location, Balance [Domain]
Statement of Income Location, Balance [Domain]
Allowance for Doubtful Accounts
Credit Loss, Financial Instrument [Policy Text Block]
Compensation Actually Paid vs. Other Measure
Compensation Actually Paid vs. Other Measure [Text Block]
Nature of Business [Line Items]
Nature of Business [Line Items]
[Line Items] for Nature of Business [Table]
Entity Emerging Growth Company
Entity Emerging Growth Company
Weighted average remaining lease term, finance lease
Finance Lease, Weighted Average Remaining Lease Term
Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year
Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member]
Amount of gain (loss) recognized in income on derivatives
Derivative, Gain (Loss) on Derivative, Net
Common stock, shares outstanding (in shares)
Balance as of beginning of period (in shares)
Balance as of end of period (in shares)
Common Stock, Shares, Outstanding
Allowance for doubtful accounts
Accounts Receivable, Credit Loss Expense (Reversal)
Other
Other Assets, Fair Value Disclosure
Recorded unconditional purchase obligation term
Recorded Unconditional Purchase Obligation Term
Recorded Unconditional Purchase Obligation Term
Schedule of Disaggregation of Revenue
Disaggregation of Revenue [Table Text Block]
Postemployment employee benefit assets
Assets for Plan Benefits, Defined Benefit Plan
Derivatives at fair value, net
Deferred Derivative Gain (Loss) [Member]
Accrued taxes
Accrued Income Taxes, Current
Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year
Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member]
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Entity Address, Postal Zip Code
Entity Address, Postal Zip Code
Restatement Determination Date
Restatement Determination Date
Income tax provision
Income tax provision
Income Tax Expense (Benefit)
Pension Adjustments Service Cost
Pension Adjustments Service Cost [Member]
Fair Value Hierarchy and NAV [Axis]
Fair Value Hierarchy and NAV [Axis]
Long-term Purchase Commitment [Table]
Long-Term Purchase Commitment [Table]
Compensation Actually Paid vs. Company Selected Measure
Compensation Actually Paid vs. Company Selected Measure [Text Block]
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Table]
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Table]
Postemployment and other benefit costs
Pension and Other Postretirement Plans Costs [Member]
All Trading Arrangements
All Trading Arrangements [Member]
Equity Awards Adjustments, Footnote
Equity Awards Adjustments, Footnote [Text Block]
Total Shareholder Return Vs Peer Group
Total Shareholder Return Vs Peer Group [Text Block]
Fair Value
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
SAVEGREEN
Renewable Energy Program [Member]
Alternative revenue programs
Alternative Revenue Programs, Revenue
Alternative Revenue Programs, Revenue
Requested rate increase (decrease), amount
Public Utilities, Requested Rate Increase (Decrease), Amount
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies Disclosure [Abstract]
Cash flows from operating activities
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation
Subsequent Event
Subsequent Event [Member]
Schedule of Equity Method Investments [Line Items]
Schedule of Equity Method Investments [Line Items]
Equity Valuation Assumption Difference, Footnote
Equity Valuation Assumption Difference, Footnote [Text Block]
PEO Total Compensation Amount
PEO Total Compensation Amount
Number of transportation agreements
Number of Transportation Agreements
Number of Transportation Agreements
Money market funds
Money Market Funds [Member]
Fair Value
Derivative Liability, Subject to Master Netting Arrangement, before Offset
Equity Components [Axis]
Equity Components [Axis]
Installations and maintenance
Installation and Maintenance [Member]
Installation and Maintenance [Member]
Non-Rule 10b5-1 Arrangement Adopted
Non-Rule 10b5-1 Arrangement Adopted [Flag]
Number of reportable segments
Number of Reportable Segments
Operating revenues
Sales [Member]
Regulatory liabilities
Regulatory liabilities-noncurrent
Regulatory Liability, Noncurrent
Entity Address, State or Province
Entity Address, State or Province
Financing cash flows for finance leases
Finance Lease, Principal Payments
Prepaid and accrued taxes
Increase (Decrease) in Prepaid and Accrued Taxes
Changes in components of working capital as shown on the statement of cash flows related to Prepaid and Accrued Taxes
Financial Asset, Aging [Domain]
Financial Asset, Aging [Domain]
Total current liabilities
Liabilities, Current
Deferred investment tax credits
Accumulated Deferred Investment Tax Credit
Long-Term Purchase Commitment, Category of Item Purchased [Domain]
Long-Term Purchase Commitment, Category of Item Purchased [Domain]
Individual:
Individual [Axis]
Income Tax Authority [Domain]
Income Tax Jurisdiction [Domain]
Approved return on equity, percentage
Public Utilities, Approved Return on Equity, Percentage
ROU asset obtained in exchange for finance lease liability
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability
Payments of common stock dividends
Payments of Ordinary Dividends, Common Stock
Natural gas purchases
Inventories [Member]
Forgone Recovery, Explanation of Impracticability
Forgone Recovery, Explanation of Impracticability [Text Block]
Entity Interactive Data Current
Entity Interactive Data Current
Loss Contingency, Nature [Domain]
Loss Contingency, Nature [Domain]
S&T
Storage And Transportation (S&T) Segment [Member]
Storage And Transportation (S&T) Segment
Revenues
Revenue from Contract with Customer [Policy Text Block]
Schedule of Long-term Purchase Commitment
Long-Term Purchase Commitment [Table Text Block]
Disaggregation of Revenue [Table]
Disaggregation of Revenue [Table]
Current maturities of long-term debt
Long-Term Debt and Lease Obligation, Current
Long-Lived Tangible Asset [Axis]
Long-Lived Tangible Asset [Axis]
Software costs
Capitalized Computer Software, Period Increase (Decrease)
Storage and Capacity
Storage and Capacity Leases [Member]
Storage and Capacity Leases [Member]
Other noncurrent assets
Other Assets, Noncurrent
Customer [Domain]
Customer [Domain]
Entity Central Index Key
Entity Central Index Key
Nonutility plant and equipment, at cost
Property, Plant and Equipment, Other, Gross
PEO Name
PEO Name
Proceeds from waiver discount issuance of common stock
Proceeds From Waiver Discount Issuance Of Common Stock
Proceeds From Waiver Discount Issuance Of Common Stock
Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year
Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member]
2028
Purchase Obligation, to be Paid, Year Two
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cost of removal
Removal Costs [Member]
Asset management agreement, period
Asset Management Agreement, Period
Asset Management Agreement, Period
Outstanding Aggregate Erroneous Compensation Amount
Outstanding Aggregate Erroneous Compensation Amount
Defined Benefit Plan [Table]
Defined Benefit Plan [Table]
Schedule of Segment Reporting Information, by Segment [Table]
Schedule of Segment Reporting Information, by Segment [Table]
Office Building
Office Building [Member]
Deferred revenue
Contract with Customer, Liability, Current
Schedule of Fair Value of Derivative Assets and Liabilities
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]
Exercise Price
Award Exercise Price
Entity Filer Category
Entity Filer Category
CAPITALIZATION
Capitalization, Long-Term Debt and Equity [Abstract]
Inventory, Current [Table]
Inventory, Current [Table]
Subsequent Event Type [Axis]
Subsequent Event Type [Axis]
Long
Long [Member]
Equivalent value of ITCs recognized on equipment financing
Increase (Decrease) in Investment Tax Credit
Increase (Decrease) in Investment Tax Credit
Pre-tax gain on sale of assets
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax
Broker margin - current assets
Other Receivable from Broker-Dealer and Clearing Organization
Statement of Financial Position Location, Balance [Axis]
Statement of Financial Position Location, Balance [Axis]
Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year
Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member]
Thereafter
Purchase Obligation, To Be Paid, After Year Four
Purchase Obligation, To Be Paid, After Year Four
Natural gas services
Wholesale Natural Gas [Member]
Wholesale Natural Gas [Member]
Entity Address, Address Line One
Entity Address, Address Line One
Accumulated Other Comprehensive (Loss) Income
Total
AOCI Attributable to Parent [Member]
Allowance for doubtful accounts
Accounts Receivable, Allowance for Credit Loss, Current
Increase for customers' credits
Contract With Customer, Increase (Decrease) for Contract Liability
Contract With Customer, Increase (Decrease) for Contract Liability
Internal Credit Assessment [Axis]
Internal Credit Assessment [Axis]
Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract]
Internal Credit Assessment [Domain]
Internal Credit Assessment [Domain]
DERIVATIVE INSTRUMENTS
Derivative Instruments and Hedging Activities Disclosure [Text Block]
Prior service credit amortization
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)
Regulatory rider expenses
Utilities Operating Expense, Other
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Fair Value as of Grant Date
Award Grant Date Fair Value
Tax on reclassifications of losses to net income on derivatives
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax
Net operating loss carryforwards
Operating Loss Carryforwards
Cost of removal - asset retirement obligations
Asset Retirement Obligation, Cash Paid to Settle
Total operating expenses
Costs and Expenses
Related Party Transaction [Line Items]
Related Party Transaction [Line Items]
Document Quarterly Report
Document Quarterly Report
Long-term debt, fair value
Long-Term Debt, Fair Value
Changed Peer Group, Footnote
Changed Peer Group, Footnote [Text Block]
Counterparty Name [Domain]
Counterparty Name [Domain]
Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]
Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]
Investments, All Other Investments [Abstract]
Investments, All Other Investments [Abstract]
Adjustment To PEO Compensation, Footnote
Adjustment To PEO Compensation, Footnote [Text Block]
Collateral Received/Pledged
Derivative Liability, Collateral or Equivalent
Collateral or equivalent pledged or received against derivative liabilities.
Title
Trading Arrangement, Individual Title
Peer Group Total Shareholder Return Amount
Peer Group Total Shareholder Return Amount
Expenditures for:
Payments to Acquire Property, Plant, And Equipment And Removal Costs [Abstract]
Payments to Acquire Property, Plant, And Equipment And Removal Costs [Abstract]
Internally rated investment grade
Internally Rated Investment Grade [Member]
Internally-rated exposure applies to counterparties that are not rated by outside firms. In which case the company's or guarantor's financial statements are reviewed, and financial ratios are applied to arrive at a substitute rating
Non-PEO NEO
Non-PEO NEO [Member]
Letters of credit outstanding, amount
Letters of Credit Outstanding, Amount
Position [Domain]
Position [Domain]
Natural Gas Purchases and Future Demand Fees, Next Five Fiscal Years
Purchase Obligation, Fiscal Year Maturity [Abstract]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Schedule of Offsetting Assets
Offsetting Assets [Table Text Block]
Schedule of Regulatory Liabilities
Schedule of Regulatory Liabilities [Table Text Block]
All Award Types
Award Type [Domain]
Equity Awards Adjustments
Equity Awards Adjustments [Member]
Pension Benefits Adjustments, Footnote
Pension Benefits Adjustments, Footnote [Text Block]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Line Items]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan Disclosure [Line Items]
Compensation Amount
Outstanding Recovery Compensation Amount
Debt Instrument, Name [Domain]
Debt Instrument, Name [Domain]
Recovery of Erroneously Awarded Compensation Disclosure [Line Items]
Fair market value
Estimate of Fair Value Measurement [Member]
Retirement Plan Type [Domain]
Retirement Plan Type [Domain]
NJNG to NJRES Affiliate
NJNG to NJRES Affiliate [Member]
Affiliate transactions between NJNG and NJR subsidiary NJRES
MNPI Disclosure Timed for Compensation Value
MNPI Disclosure Timed for Compensation Value [Flag]
Waiver discount (in shares)
Stock Issued During Period, Shares, Dividend Reinvestment Plan Waiver Discount Feature
Number of shares issued during the period from a DRP waiver discount feature.
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]
Long-term debt
Long-Term Debt and Lease Obligation
Accumulated other comprehensive loss, net of tax
Accumulated Other Comprehensive Income (Loss), Net of Tax
Collateral Received/Pledged
Derivative Asset, Collateral or Equivalent
Collateral or equivalent pledged or received against derivative assets
Long-term Purchase Commitment [Line Items]
Long-Term Purchase Commitment [Line Items]
NJNG
NJNG [Member]
New Jersey Natural Gas (NJNG) is a natural gas distribution company regulated by the New Jersey Board of Public Utilities (BPU) and comprises the Company's Natural Gas Distribution segment.
Restricted broker margin accounts
Commission Payable to Broker-Dealer and Clearing Organization
Aggregate Pension Adjustments Service Cost
Aggregate Pension Adjustments Service Cost [Member]
Reclassifications of losses to net income on derivatives designated as hedging instruments, net of tax of $(80), $(80), $(159) and $(159), respectively
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax
Minimum
Minimum [Member]
Company Selected Measure Name
Company Selected Measure Name
Fair Value Measurement [Domain]
Fair Value Measurement [Domain]
OPERATING REVENUES
Regulated and Unregulated Operating Revenue [Abstract]
DEBT
Debt Disclosure [Text Block]
Aggregate Available
Trading Arrangement, Securities Aggregate Available Amount
Accounts payable and other
Accounts Payable, Current
Operating cash flows for operating leases
Operating Lease, Payments
Stock Appreciation Rights (SARs)
Stock Appreciation Rights (SARs) [Member]
Discontinued Operations
Discontinued Operations [Member]
Accumulated depreciation and amortization
Capitalized Computer Software, Accumulated Amortization
COMMITMENTS AND CONTINGENT LIABILITIES
Commitments and Contingencies Disclosure [Text Block]
Diluted (in shares)
Weighted average shares of common stock outstanding-diluted (in shares)
Weighted Average Number of Shares Outstanding, Diluted
Non-GAAP Measure Description
Non-GAAP Measure Description [Text Block]
Reconciliation of Assets from Segment to Consolidated [Table]
Reconciliation of Assets from Segment to Consolidated [Table]
Derivative [Table]
Derivative [Table]
Prepaid expenses
Other Prepaid Expense, Current
Entity Small Business
Entity Small Business
Software costs
Capitalized Computer Software, Gross
Income Tax Disclosure [Abstract]
Income Tax Disclosure [Abstract]
Operation and maintenance
Operation and maintenance
Other Cost and Expense, Operating
2030
Purchase Obligation, to be Paid, Year Four
Document Transition Report
Document Transition Report
Overrecovered natural gas costs
Liability Overrecovered Gas Costs [Member]
Liability Overecovered Gas Costs [Member]
Schedule of Gross Credit Exposures
Schedules of Concentration of Risk, by Risk Factor [Table Text Block]
Underlying Securities
Award Underlying Securities Amount
Payments of long-term debt
Repayments of Other Long-Term Debt
Equity Component [Domain]
Equity Component [Domain]
Document Period End Date
Document Period End Date
Cash and Cash Equivalents [Domain]
Cash and Cash Equivalents [Domain]
INCOME TAXES
Income Tax Disclosure [Text Block]
Awards Close in Time to MNPI Disclosures, Table
Awards Close in Time to MNPI Disclosures [Table Text Block]
Net Value
Derivative Asset, Including Not Subject to Master Netting Arrangement, after Offset and Deduction
CommonStockSharesIssuedNotDisclosed
CommonStockSharesIssuedNotDisclosed
CommonStockSharesIssuedNotDisclosed
Document Type
Document Type
Significant Unobservable Inputs (Level 3)
Fair Value, Inputs, Level 3 [Member]
Schedule of Assets for Business Segments and Business Operations
Reconciliation of Assets from Segment to Consolidated [Table Text Block]
EARNINGS PER SHARE
Earnings Per Share [Text Block]
Name
Outstanding Recovery, Individual Name
Loss Contingencies [Table]
Loss Contingencies [Table]
Product and Service [Axis]
Product and Service [Axis]
Variable lease cost
Variable Lease, Cost
Revenues from contracts with customers
Corporate and other
Revenue from Contract with Customer, Excluding Assessed Tax
Accumulated depreciation and amortization, utility plant
Public Utilities, Property, Plant and Equipment, Accumulated Depreciation
Total current assets
Assets, Current
Statistical Measurement [Axis]
Statistical Measurement [Axis]
NJNG and Clean Energy Ventures to PPA
NJNG And Clean Energy Ventures To PPA [Member]
NJNG And Clean Energy Ventures To PPA
Regulatory Asset [Domain]
Regulatory Asset [Domain]
Weighted average cost of capital, percentage
Public Utilities, Weighted Average Cost Of Capital, Percentage
Public Utilities, Weighted Average Cost Of Capital, Percentage
Aggregate Erroneous Compensation Amount
Aggregate Erroneous Compensation Amount
Disposal Group Name [Axis]
Disposal Group Name [Axis]
Tax withholding payments related to net settled stock compensation
Payment, Tax Withholding, Share-Based Payment Arrangement
Peer Group Issuers, Footnote
Peer Group Issuers, Footnote [Text Block]
Regulatory assets
Regulatory assets-current
Regulatory Asset, Current
CURRENT LIABILITIES
Current Liabilities
Liabilities, Current [Abstract]
Other comprehensive income, net of tax
Other comprehensive income
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent
Schedule of Effect of Derivative Instruments Designated as Cash Flow Hedges on OCI
Derivative Instruments, Gain (Loss) [Table Text Block]
Loans outstanding
Long-Term Line of Credit
Quoted Prices in Active Markets for Identical Assets, (Level 1)
Fair Value, Inputs, Level 1 [Member]
Gain on sale of assets
Gain on sale of assets
Gain on sale of assets
Gain (Loss) on Disposition of Assets
Related Party Transaction [Table]
Related Party Transaction [Table]
Diluted (usd per share)
Diluted earnings per common share (usd per share)
Earnings Per Share, Diluted
Treasury stock at cost and other, shares (in shares)
Treasury Stock, Common, Shares
Natural gas purchases payable
Increase (Decrease) in Other Accounts Payable
Dividend reinvestment plan
Stock Issued During Period, Value, Dividend Reinvestment Plan
Consolidation Items [Domain]
Consolidation Items [Domain]
Derivative Liability, Statement of Financial Position [Extensible Enumeration]
Derivative Liability, Statement of Financial Position [Extensible Enumeration]
Prepaid expenses
Increase (Decrease) in Prepaid Expense
INVESTMENTS IN EQUITY INVESTEES
Equity Method Investments and Joint Ventures Disclosure [Text Block]
BPU
BPU [Member]
BPU [Member]
Residential
Residential [Member]
Residential [Member]
Regulatory Liability [Domain]
Regulatory Liability [Domain]
Operation and maintenance
Operating Maintenance [Member]
Operating Maintenance
Interruptible, off-tariff and other
Interruptible and Off-tariff [Member]
Interruptible and Off-tariff [Member]
Schedule of Regulatory Assets and Liabilities [Table]
Schedule of Regulatory Assets And Liabilities [Table]
Schedule of Regulatory Assets And Liabilities [Table]
Income taxes
Income Taxes Paid, Net
Schedule of Performance Obligation, in Excess of Billings
Long-Term Contract or Program Disclosure [Table Text Block]
Long-term debt, gross
Long-Term Debt, Gross
BGSS Balancing
BGSS Balancing [Member]
BGSS Balancing [Member]
Number of megawatts
Number Of Megawatts
Number Of Megawatts
Derivative instruments
Gain (Loss) on Derivative Instruments, Net, Pretax
Intersegment Eliminations
Intersegment Eliminations [Member]
Expiration Date
Trading Arrangement Expiration Date
Proceeds from issuance of common stock - DRP
Proceeds from Sale of Treasury Stock
Solar Property
Solar Property [Member]
Solar Property [Member]
Compensation Actually Paid vs. Net Income
Compensation Actually Paid vs. Net Income [Text Block]
Receivables
Increase (Decrease) in Accounts Receivable
Customers' credit balances and deposits
Deferred Income, Current
Entity Current Reporting Status
Entity Current Reporting Status
Utility plant
Utility Plant [Member]
Utility Plant [Member]
Derivative [Line Items]
Derivative [Line Items]
Awards Close in Time to MNPI Disclosures
Awards Close in Time to MNPI Disclosures [Table]
Forecasted effective tax rate, percentage
Effective Income Tax Rate Reconciliation, Forecasted, Percent
Effective Income Tax Rate Reconciliation, Forecasted, Percent
Statement of Financial Position [Abstract]
Statement of Financial Position [Abstract]
Executive Category:
Executive Category [Axis]
Asset retirement obligations
Asset Retirement Obligations, Noncurrent
Finance lease liabilities
Finance Lease, Liability, Current
Current Fiscal Year End Date
Current Fiscal Year End Date
Common stock issued:
Stock Issued During Period [Abstract]
Stock Issued During Period
Derivative liabilities
Liabilities
Derivative Liability
Equity Awards Adjustments, Excluding Value Reported in Compensation Table
Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member]
CSI
CSI [Member]
CSI
Billed, beginning
Billed, end
Receivables, Net, Current
Schedule of Fair Value Assets and Liabilities Measured on Recurring Basis
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
Site Contingency [Line Items]
Site Contingency [Line Items]
WEIGHTED AVERAGE SHARES OUTSTANDING
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Fair Value, by Balance Sheet Grouping [Table]
Fair Value, by Balance Sheet Grouping [Table]
LEASES
Lessee, Operating Leases [Text Block]
Cash flows used in financing activities
Cash Provided by (Used in) Financing Activity, Including Discontinued Operation
Investment grade
External Credit Rating, Investment Grade [Member]
Measure:
Measure [Axis]
Restricted broker margin accounts
Receivable from Broker-Dealer and Clearing Organization
Long-Lived Tangible Asset [Domain]
Long-Lived Tangible Asset [Domain]
Natural gas purchases
Cost of Product and Service Sold
Disposal Group Classification [Domain]
Disposal Group Classification [Domain]
Receivables Billing Status [Domain]
Receivables Billing Status [Domain]
Schedule of Regulatory Filings [Table]
Schedule of Regulatory Filings [Table]
Schedule of Regulatory Filings [Table]
Loans receivable, term
Loans Receivable Term
Loans Receivable Term
Pay vs Performance Disclosure, Table
Pay vs Performance [Table Text Block]
Other current regulatory assets
Other Regulatory Assets (Liabilities) [Member]
Forgone Recovery due to Violation of Home Country Law, Amount
Forgone Recovery due to Violation of Home Country Law, Amount
Entity Tax Identification Number
Entity Tax Identification Number
Increase for customer accounts receivable
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease)
Short
Short [Member]
Derivative Asset, Statement of Financial Position [Extensible Enumeration]
Derivative Asset, Statement of Financial Position [Extensible Enumeration]
Weighted average remaining lease term, operating lease
Operating Lease, Weighted Average Remaining Lease Term
Schedule of Effect of Derivative Instruments on Consolidated Statements of Operations
Derivatives Not Designated as Hedging Instruments [Table Text Block]
2026
Recorded Unconditional Purchase Obligation, to be Paid, Remainder of Fiscal Year
NJNG to Adelphia Affiliate
NJNG to Adelphia Affiliate [Member]
NJNG to Adelphia Affiliate
Dividends payable
Dividends Payable, Current
Interest expense, net of capitalized interest
Interest Expense, Nonoperating
Trading Arrangement:
Trading Arrangement [Axis]
Derivatives, at fair value
Derivative assets, current
Derivative Asset, Current
Total Shareholder Return Amount
Total Shareholder Return Amount
Loss Contingencies [Line Items]
Loss Contingencies [Line Items]
HSO
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]
Security Exchange Name
Security Exchange Name
Nature of Business [Table]
Nature of Business [Table]
Nature of Business [Table]
Utility
Regulated Operating Revenue, Gas
Total noncurrent liabilities
Liabilities, Noncurrent
Regulated and Unregulated Operation [Domain]
Regulated and Unregulated Operation [Domain]
Physical commodity contracts
Physical Commodity
Energy Related Derivative [Member]
Software costs
Capitalized software costs
Capitalized Computer Software, Net
Accrued capital expenditures
Capital Expenditures Incurred but Not yet Paid
Total borrowing capacity
Line of Credit Facility, Maximum Borrowing Capacity
Dividend reinvestment plan (in shares)
Stock Issued During Period, Shares, Dividend Reinvestment Plan
OPERATING EXPENSES
Operating Expenses [Abstract]
Natural gas purchases payable to related parties
Demand fees payable
Other Liabilities, Current
Postemployment employee benefit liability
Liability, Defined Benefit Plan, Noncurrent
Statement [Line Items]
Statement [Line Items]
Rule 10b5-1 Arrangement Adopted
Rule 10b5-1 Arrangement Adopted [Flag]
Cash and cash equivalents
Cash and cash equivalents
Cash and Cash Equivalent
Sublease Agreement Two
Sublease Agreement Two [Member]
Sublease Agreement Two
Common Stock
Common Stock [Member]
Change in cash, cash equivalents and restricted cash
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Significant Accounting Policies [Text Block]
Statistical Measurement [Domain]
Statistical Measurement [Domain]
Schedule of Outstanding Long (Short) Derivatives
Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block]
NJR
NJR [Member]
New Jersey Resources Corporation (NJR or the Company) is an energy services holding company providing retail natural gas service in New Jersey and wholesale natural gas and related energy services to customers in states from the Gulf Coast and Mid-Continent regions to the New England region, the West Coast and Canada through two principal subsidiaries.
Related Party Transaction [Axis]
Related Party Transaction [Axis]
Adelphia Gateway, LLC
Adelphia Gateway, LLC [Member]
Adelphia Gateway, LLC
Equity in earnings of affiliates
Income (Loss) from Equity Method Investments
NJNG to NJR Subsidiaries
NJNG To NJR Subsidiaries [Member]
NJNG To NJR Subsidiaries
Leases [Abstract]
Leases [Abstract]
Basic earnings per share
Earnings Per Share, Basic [Abstract]
Total outstanding principal balance of loans
Other Receivable, after Allowance for Credit Loss, Noncurrent
Storage demand fees
Storage Demand Fees [Member]
Storage fees paid to pipelines in the normal course of business.
Trading Arrangements, by Individual
Trading Arrangements, by Individual [Table]
Current charges recoverable through BGSS
Current Charges Recoverable Through BGSS
Current Charges Recoverable Through Basic Gas Supply Service as shown for the reporting period
Capital investments approved by the BPU
Capital Investments Approved By The Board Of Public Utilities
Capital Investments Approved By The Board Of Public Utilities
Basic (usd per share)
Basic earnings per common share (usd per share)
Earnings Per Share, Basic
Accumulated depreciation and amortization, nonutility plant and equipment
Accumulated Depreciation And Amortization, Nonutility Plant And Equipment [Member]
Accumulated Depreciation And Amortization, Nonutility Plant And Equipment
Schedule of Line of Credit Facilities
Schedule of Line of Credit Facilities [Table Text Block]
Notes receivable
Receivables, Fair Value Disclosure
Liabilities:
Liabilities, Fair Value Disclosure [Abstract]
Treasury stock and other
Stockholders' Equity, Treasury Stock Activity And Other
Stockholders' Equity, Treasury Stock Activity And Other
Unbilled revenues
Unbilled
Unbilled Receivables, Current
Schedule of Segment Reporting Information, by Segment
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Short-term debt
Short-Term Debt
Regulation Status [Axis]
Regulation Status [Axis]
Schedule of Demand Fees and Demand Fees Payable
Schedule Of Demand Fees And Demand Fees Payable [Table Text Block]
Schedule Of Demand Fees And Demand Fees Payable
NJR Retail Holdings Corporation
NJR Retail Holdings Corporation [Member]
NJR Retail Holdings Corporation [Member]
Schedule of Broker Margin Accounts by Company
Schedule of Due to (from) Broker-Dealer and Clearing Organization [Table Text Block]
Schedule of Software Costs Included in the Consolidated Financial Statements
Schedule Of Software Costs Included In Consolidated Financial Statements Sunday [Table Text Block]
Schedule Of Software Costs Included In Consolidated Financial Statements Sunday
Award Timing MNPI Disclosure
Award Timing MNPI Disclosure [Text Block]
Category of Item Purchased [Axis]
Category of Item Purchased [Axis]
SAVEGREEN
SAVEGREEN [Member]
SAVEGREEN [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) [Line Items]
Public Utilities, Regulatory Proceeding [Domain]
Public Utilities, Regulatory Proceeding [Domain]
Segment Reporting, Asset Reconciling Item [Line Items]
Segment Reporting, Asset Reconciling Item [Line Items]
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]
Hedging Designation [Domain]
Hedging Designation [Domain]
Cost of removal
Payments for Removal Costs
CURRENT ASSETS
Assets, Current [Abstract]
Total capitalization and liabilities
Liabilities and Equity
Postemployment Benefit Obligation
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Derivative Instruments, Gain (Loss) [Table]
Derivative Instruments, Gain (Loss) [Table]
Schedule of Performance Obligation, Recognition Period
Revenue, Performance Obligation, Recognition Period [Table Text Block]
Revenue, Performance Obligation, Recognition Period [Table Text Block]
Amounts reclassified from accumulated other comprehensive loss, net of tax
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent
Finance lease, discount rate, percentage
Lessee, Finance Lease, Discount Rate
Asset Derivatives
Offsetting Derivative Assets [Abstract]
Credit Derivative [Table]
Credit Derivative [Table]
Equity Method Investment [Table]
Equity Method Investment [Table]
2029
Purchase Obligation, to be Paid, Year Three
Sale Leasebacks
Sale Leasebacks [Policy Text Block]
Sale Leasebacks
Capital expenditures
Segment, Expenditure, Addition to Long-Lived Assets
Accounting Policies [Abstract]
Accounting Policies [Abstract]
Pay vs Performance Disclosure [Line Items]
Liabilities
Liabilities [Abstract]
DISPOSITIONS
Business Combination [Text Block]
Transportation Precedent Agreement One
Transportation Precedent Agreement One [Member]
Transportation Precedent Agreement One
Amortization of right-of-use assets
Finance Lease, Right-of-Use Asset, Amortization
Other noncurrent liabilities
Other Liabilities, Noncurrent
Deferred revenue, current
Increase (Decrease) in Deferred Revenue
Site Contingency [Table]
Site Contingency [Table]
Statement of Cash Flows [Abstract]
Statement of Cash Flows [Abstract]
Company Selected Measure Amount
Company Selected Measure Amount
Employer contributions
Defined Benefit Plan, Plan Assets, Contributions by Employer
Debt issuance costs
Debt Issuance Costs, Gross
Comprehensive income
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Disposal Group Name [Domain]
Disposal Group Name [Domain]
Name
Measure Name
Schedule of Fair Value Hierarchy
Schedule Of Fair Value Hierarchy [Table Text Block]
Schedule Of Fair Value Hierarchy
Deferred income taxes
Deferred Income Tax Liabilities, Net
Approximate annual demand fees under agreement
Projected Annual Demand Fees Under Related Party Agreement
Annual Projected Demand Fees based upon a related party agreement between various NJR Subsidiaries
Futures
Future [Member]
Billing Status, Type [Axis]
Billing Status, Type [Axis]
Income Tax Contingency [Table]
Income Tax Contingency [Table]
Legal Entity [Axis]
Legal Entity [Axis]
Total assets
Assets
Assets
Deferred income taxes
Deferred Income Tax Charge [Member]
Total noncurrent assets
Assets, Noncurrent, Other than Noncurrent Investments and Property, Plant and Equipment
Regulatory Liability [Axis]
Regulatory Liability [Axis]
CASH FLOWS FROM OPERATING ACTIVITIES
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract]
Other segment income (expense)
Segment Reporting, Other Segment Item, Amount
HSO
Home Services and Other (HSO) [Member]
Home Services and Other (HSO)
CEV
Clean Energy Ventures (CEV) Segment [Member]
Clean Energy Ventures is a company that is involved in capital investments in renewable energy projects. Clean Energy Ventures comprises the CEV segment.
Assets:
Assets, Fair Value Disclosure [Abstract]
Incremental shares (in shares)
Incremental Common Shares Attributable to Other Dilutive Effect
Incremental Common Shares Attributable to Other Dilutive Effect
Cash dividend declared per share (usd per share)
Common Stock, Dividends, Per Share, Declared
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
ROU asset obtained in exchange for operating lease liability
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability
Level 2
Significant Other Observable Inputs (Level 2)
Fair Value, Inputs, Level 2 [Member]
Schedule of Regulatory Assets
Schedule of Regulatory Assets [Table Text Block]
Investments in equity method investees
Equity Method Investments
Insider Trading Policies and Procedures Not Adopted
Insider Trading Policies and Procedures Not Adopted [Text Block]
Related Party
Related Party [Member]
Annual pipeline obligation to be paid over 10 year period
Recorded Unconditional Purchase Obligation, To Be Paid Annual By Counterparty Over 10 Year Period
Recorded Unconditional Purchase Obligation, To Be Paid Annual By Counterparty Over 10 Year Period
New Jersey Clean Energy Program
Clean Energy Program, Current
Current portion of the carrying amount for a funding obligation related to a statewide program designed to promote energy efficiency
PEO
PEO [Member]
Interest income
Investment Income, Interest
INCOME BEFORE INCOME TAXES AND EQUITY IN EARNINGS OF AFFILIATES
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest
Corporate and other
Corporate Segment and Other Operating Segment [Member]
CHANGES IN COMPONENTS OF WORKING CAPITAL
Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract]
Commercial and industrial
Commercial and Industrial [Member]
Commercial and Industrial [Member]
Retained Earnings
Retained Earnings [Member]
Income Tax Authority [Axis]
Income Tax Jurisdiction [Axis]
Pipeline demand fees
Pipeline Demand Fees [Member]
Demand fees paid to affiliates in the normal course of business.
Total finance lease cost
Finance Lease, Cost
Finance Lease, Cost
Oil and Gas, Full Cost Method, Capitalized Cost Excluded from Amortization [Line Items]
Oil and Gas, Full Cost Method, Capitalized Cost Excluded from Amortization [Line Items]
Cash, cash equivalents and restricted cash at beginning of period
Cash, cash equivalents and restricted cash at end of period
Cash, cash equivalents and restricted cash
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation
Related parties
Related Parties Amount in Cost of Sales
Income Statement [Abstract]
Income Statement [Abstract]
Guarantee Obligations
Guarantee Obligations [Member]
Derivative assets
Assets
Derivative Asset
Derivatives, at fair value
Derivative liabilities, noncurrent
Derivative Liability, Noncurrent
Product and Service [Domain]
Product and Service [Domain]
Net income attributable to reportable segments
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
Restatement does not require Recovery
Restatement Does Not Require Recovery [Text Block]
Total liabilities at fair value
Liabilities, Fair Value Disclosure
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
City Area Code
City Area Code
Award Timing, How MNPI Considered
Award Timing, How MNPI Considered [Text Block]
Committed Credit Facilities Due August 2029
Committed Credit Facilities Due August 2029 [Member]
Committed Credit Facilities Due August 2029
CASH FLOWS USED IN INVESTING ACTIVITIES
Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract]
Pay vs Performance Disclosure
Pay vs Performance Disclosure [Table]
Related Party Transactions [Abstract]
Related Party Transactions [Abstract]
Recognized actuarial loss
Defined Benefit Plan, Amortization of Gain (Loss)
Total lease cost
Lease, Cost
Loss contingency, estimate of possible loss
Loss Contingency, Estimate of Possible Loss
Schedule of Lease, Cost
Lease, Cost [Table Text Block]
Utility
Regulated
Regulated Operation [Member]
NJRCEV
NJRCEV [Member]
NJRCEV
NATURE OF THE BUSINESS
Nature of Operations [Text Block]
Total
Contract With Customer, Assets (Liabilities), Net
Contract With Customer, Assets (Liabilities), Net
Schedule of Assets and Liabilities, Lessee
Assets And Liabilities, Lessee [Table Text Block]
Assets And Liabilities, Lessee [Table Text Block]
Tax Act impact
Tax Act [Member]
Tax Act [Member]
Equipment
Equipment [Member]
SUPPLEMENTAL DISCLOSURES OF CASH FLOWS INFORMATION
Supplemental Cash Flow Information [Abstract]
Transportation capacity under precedent agreement (in bcf per day)
Natural Gas Transportation Capacity Under Precedent Agreement
Natural Gas Transportation Capacity Under Precedent Agreement
Operating loss carryforward, valuation allowance
Operating Loss Carryforwards, Valuation Allowance
Other Performance Measure, Amount
Other Performance Measure, Amount
Inventory [Line Items]
Inventory [Line Items]
Schedule of Restricted Cash
Restrictions on Cash and Cash Equivalents [Table Text Block]
Related Party [Domain]
Related and Nonrelated Parties [Domain]
Derivative Instrument [Axis]
Derivative Instrument [Axis]
Derivative Instrument [Axis]
Fair Value Hierarchy
Fair Value of Financial Instruments, Policy [Policy Text Block]
LEASES
Lessee, Finance Leases [Text Block]
Other current assets
Other Assets, Current
Premium on common stock
Additional Paid in Capital, Common Stock
Entity [Domain]
Entity [Domain]
Cash flows used in investing activities
Cash Provided by (Used in) Investing Activity, Including Discontinued Operation
Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table
Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member]
2027
Purchase Obligation, to be Paid, Year One
Derivatives, at fair value
Derivative assets, noncurrent
Derivative Asset, Noncurrent
Interest (net of amounts capitalized)
Interest Paid, Excluding Capitalized Interest, Operating Activity
Document Fiscal Year Focus
Document Fiscal Year Focus
Operating lease assets
Operating lease assets
Operating Lease, Right-of-Use Asset
Actual effective tax rate, percentage
Effective Income Tax Rate Reconciliation, Percent
Operating lease cost
Operating Lease, Cost
3.75% Long Term Debt
3.75% Long Term Debt [Member]
3.75% Long Term Debt
Carrying Value
Reported Value Measurement [Member]
Schedule of Regulatory Filings [Line Items]
Schedule of Regulatory Filings [Line Items]
Schedule of Regulatory Filings [Line Items]
Derivative Instruments
Derivatives, Policy [Policy Text Block]
REPORTABLE SEGMENT DATA
Segment Reporting Disclosure [Text Block]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Not Designated as Hedging Instrument
Not Designated as Hedging Instrument [Member]
Proceeds from sale leaseback transactions - natural gas meters
Net Proceeds from Sale Leaseback Transaction, Financing Activities
Net Proceeds from Sale Leaseback Transaction, Financing Activities
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Increase (Decrease) in Accumulated Other Comprehensive Income [Roll Forward]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Approved rate increase amount
Public Utilities, Approved Rate Increase (Decrease), Amount
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets [Line Items]
Nonutility plant and equipment, at cost
Other Capitalized Property Plant and Equipment [Member]
Schedule of Components of Net Periodic Cost
Schedule of Net Benefit Costs [Table Text Block]
Compensation Actually Paid vs. Total Shareholder Return
Compensation Actually Paid vs. Total Shareholder Return [Text Block]
Fair Value, Recurring and Nonrecurring [Table]
Fair Value, Recurring and Nonrecurring [Table]
Lessee Accounting
Lessee, Leases [Policy Text Block]
Natural gas purchases payable
Gas Purchase Payable, Current
Deferred income taxes
Deferred Income Tax Assets, Net
Schedule of Accumulated Other Comprehensive Loss
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Depreciation and amortization
Depreciation and amortization
Depreciation, Depletion and Amortization
Natural gas purchases:
Cost of Product and Service Sold [Abstract]
Internally rated noninvestment grade
Internally Rated Noninvestment Grade [Member]
Internally-rated exposure applies to counterparties that are not rated by outside firms. In which case the company or guarantor's financial statements are reviewed, and financial ratios are applied tp arrive at a substitute rating.
Revolving Credit Facility
Revolving Credit Facility [Member]
Nonutility
Unregulated Operating Revenue
Finance leases
Finance Lease, Liability
Arrangement Duration
Trading Arrangement Duration
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]
Product liability contingency, loss exposure in excess of accrual, best estimate
Product Liability Contingency, Loss Exposure in Excess of Accrual, Best Estimate
Firm transportation
Firm Transportation [Member]
Firm Transportation [Member]
Segments [Axis]
Segments [Axis]
Treasury stock at cost and other; shares March 31, 2026 — 18,922; September 30, 2025 — 17,273
Stockholders' Equity, Treasury Stock And Other, Value
Stockholders' Equity, Treasury Stock And Other, Value
Local Phone Number
Local Phone Number
Additional 402(v) Disclosure
Additional 402(v) Disclosure [Text Block]
Billed
Billed
Accounts Receivable, before Allowance for Credit Loss, Current
Liabilities, Current
Liabilities, Current [Member]
Liabilities, Current
Renewable energy certificates
Renewable Energy Certificates [Member]
Renewable Energy Certificates
ASSETS
Assets
Assets [Abstract]
Credit Facility [Axis]
Credit Facility [Axis]
Underlying Security Market Price Change
Underlying Security Market Price Change, Percent
Debt Instrument [Axis]
Debt Instrument [Axis]
EMPLOYEE BENEFIT PLANS
Retirement Benefits [Text Block]
FAIR VALUE
Fair Value Disclosures [Text Block]
Credit Facility [Domain]
Credit Facility [Domain]
Derivatives, at fair value
Derivative liability, current
Derivative Liability, Current
Deferred revenue
Deferred Revenue
Stated interest rate
Debt Instrument, Interest Rate, Stated Percentage
Investment, Name [Axis]
Investment, Name [Axis]
Operating lease liabilities
Operating lease liabilities
Operating Lease, Liability, Noncurrent
Depreciation and amortization
Depreciation, Depletion and Amortization [Member]
Depreciation, Depletion and Amortization
Fair Value
Derivative Asset, Subject to Master Netting Arrangement, before Offset
Entity Registrant Name
Entity Registrant Name
Operating lease, discount rate, percentage
Lessee, Operating Lease, Discount Rate
Stock Price or TSR Estimation Method
Stock Price or TSR Estimation Method [Text Block]
Net periodic benefit (credit) cost
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)
Offsetting Assets and Liabilities [Table]
Offsetting Assets and Liabilities [Table]
Disclosure of information about derivative and financial assets and liabilities that are subject to offsetting, including enforceable master netting arrangements.
Regulated Operations [Abstract]
Regulated Operations [Abstract]
Total assets at fair value
Assets, Fair Value Disclosure
Number of operating segments
Number of Operating Segments
Interest cost
Defined Benefit Plan, Interest Cost
Related Party [Axis]
Related and Nonrelated Parties [Axis]
Materials and supplies, at average cost
Other Inventory, Gross
Restatement Determination Date:
Restatement Determination Date [Axis]
Incentive compensation plan
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture
Accumulated Other Comprehensive Income (Loss) [Table]
Accumulated Other Comprehensive Income (Loss) [Table]
Components of working capital
Total
Increase (Decrease) In Operating Capital, Current
Increase (Decrease) In Operating Capital, Current
Proceeds from other financing activity
Proceeds from (Payment for) Other Financing Activity
Regulatory Asset [Axis]
Regulatory Asset [Axis]
Name
Trading Arrangement, Individual Name
ADI
ADI [Member]
ADI
Tax on adjustment to postemployment benefit obligation
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax
Statement of Comprehensive Income [Abstract]
Statement of Comprehensive Income [Abstract]
Demand fees expense recognized pertaining to related party agreement
Operating Costs and Expenses
Timing of Revenue Recognition [Roll Forward]
Timing of Revenue Recognition [Roll Forward]
Timing of Revenue Recognition [Roll Forward]
Name
Awards Close in Time to MNPI Disclosures, Individual Name
Natural gas utility sales
Natural Gas Utility [Member]
Natural Gas Utility [Member]
Restricted cash in other noncurrent assets
Restricted Cash, Noncurrent
Aggregate Erroneous Compensation Not Yet Determined
Aggregate Erroneous Compensation Not Yet Determined [Text Block]
Regulatory assets
Regulatory assets-noncurrent
Regulatory Asset, Noncurrent
Solar equipment
Solar Equipment [Member]
Solar Equipment [Member]
Waiver discount
Stock Issued During Period, Value, Dividend Reinvestment Plan Waiver Discount
Stock Issued During Period, Value, Dividend Reinvestment Plan Waiver Discount
Segments [Domain]
Segments [Domain]
Statement of Income Location, Balance [Axis]
Statement of Income Location, Balance [Axis]
Remaining borrowing capacity
Line of Credit Facility, Remaining Borrowing Capacity
Schedule of Expected Timing of Performance
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block]
Fair Value Hierarchy and NAV [Domain]
Fair Value Hierarchy and NAV [Domain]
Statement of Financial Position Location, Balance [Domain]
Statement of Financial Position Location, Balance [Domain]
Inventories
Increase (Decrease) in Inventories
Transportation Precedent Agreement Two
Transportation Precedent Agreement Two [Member]
Transportation Precedent Agreement Two [Member]
NONCURRENT ASSETS
Noncurrent Assets
Assets, Noncurrent [Abstract]
Other noncurrent assets and liabilities
Increase (Decrease) in Other Noncurrent Assets and Liabilities, Net
Amounts Offset
Derivative Liability, Subject to Master Netting Arrangement, Asset Offset
Offsetting Assets and Liabilities [Line Items]
Offsetting Assets and Liabilities [Line Items]
[Line Items] for Disclosure of information about derivative and financial assets and liabilities that are subject to offsetting, including enforceable master netting arrangements.
Financial Asset, Aging [Axis]
Financial Asset, Aging [Axis]
All Executive Categories
All Executive Categories [Member]
Common stock, $2.50 par value; authorized 150,000,000 shares; outstanding shares March 31, 2026 — 100,861,916; September 30, 2025 — 100,478,590
Common Stock, Value, Issued
Finance lease assets
Finance Lease, Right-of-Use Asset, after Accumulated Amortization
Equity in earnings, net of distributions received from equity investees
Income (Loss) from Equity Method Investments, Net of Dividends or Distributions
Schedule of Regulatory Assets And Liabilities [Line Items]
Schedule of Regulatory Assets And Liabilities [Line Items]
Schedule of Regulatory Assets And Liabilities [Line Items]
Commitments and contingent liabilities (Note 13)
Commitments and Contingencies
Share-Based Payment Arrangement, Recognized Amount [Abstract]
Share-Based Payment Arrangement, Recognized Amount [Abstract]
Gross Credit Exposure
Concentration Risk, Credit Risk, Financial Instrument, Maximum Exposure
Total property, plant and equipment
Public Utilities And Other Property, Plant and Equipment, Gross
Public Utilities And Other Property, Plant and Equipment, Gross
Ownership percentage
Equity Method Investment, Ownership Percentage
PEO Actually Paid Compensation Amount
PEO Actually Paid Compensation Amount
Diluted earnings per common share
Earnings Per Share, Diluted [Abstract]
Manufactured gas plant remediation costs
Payments for Environmental Liabilities
Revenue from Contract with Customer [Abstract]
Revenue from Contract with Customer [Abstract]
Hedging Designation [Axis]
Hedging Designation [Axis]
Accumulated depreciation and amortization, utility plant
Accumulated Depreciation And Amortization, Utility Plant [Member]
Accumulated Depreciation And Amortization, Utility Plant
Net Value
Derivative Liability, Including Not Subject to Master Netting Arrangement, after Offset and Deduction
Derivative Contract [Domain]
Derivative Contract [Domain]
Transportation precedent agreement term
Related Party Transaction, Transportation Precedent Agreement Term
Related Party Transaction, Transportation Precedent Agreement Term
All Individuals
All Individuals [Member]
Storage and pipeline capacity, contract term
Storage and Pipeline Capacity, Term of Contract
Storage and Pipeline Capacity, Term of Contract
Fair Value Disclosures [Abstract]
Fair Value Disclosures [Abstract]
Payments to acquire PP&E
Payments to Acquire Property, Plant, and Equipment
Name
Forgone Recovery, Individual Name
Unrealized loss (gain) on derivative instruments
Unrealized Gain (Loss) on Derivatives
Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested
Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member]
Disposal Group Classification [Axis]
Disposal Group Classification [Axis]
Weighted average interest rate
Debt, Weighted Average Interest Rate
Cash paid for:
Cash paid for [Abstract]
Cash outflow for interest and income taxes as of the reporting period
Erroneous Compensation Analysis
Erroneous Compensation Analysis [Text Block]
Intangible Asset, Finite-Lived [Table]
Intangible Asset, Finite-Lived [Table]
Line of Credit Facility [Line Items]
Line of Credit Facility [Line Items]
Lessee, Lease, Description [Line Items]
Lessee, Lease, Description [Line Items]
New Jersey Clean Energy Program
New Jersey Clean Energy Program [Member]
Represents a funding obligation associated with a statewide program designed to promote energy efficiency through financial incentives, programs and services. NJNG's share of the funding obligation is recoverable from customers.
Rule 10b5-1 Arrangement Terminated
Rule 10b5-1 Arrangement Terminated [Flag]
Adjustment to postemployment benefit obligation, net of tax of $2, $58, $3 and $116, respectively
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax and Reclassification Adjustment, Attributable to Parent
Number of SRECs (in certificates)
Number of Solar Renewable Energy Certificates
Number of Solar Renewable Energy Certificates
Treasury Stock and Other
Treasury Stock And Other [Member]
Treasury Stock And Other
Residential Solar Portfolio
Residential Solar Portfolio [Member]
Residential Solar Portfolio
Erroneously Awarded Compensation Recovery
Erroneously Awarded Compensation Recovery [Table]
Title of 12(b) Security
Title of 12(b) Security
Lessee, Lease, Description [Table]
Lessee, Lease, Description [Table]
Disposal Groups, Including Discontinued Operations [Table]
Disposal Groups, Including Discontinued Operations [Table]
Manufactured gas plant remediation
Accrued Environmental Loss Contingencies, Noncurrent
Solar Asset Financing
Solar Asset Financing [Member]
Solar Asset Financing [Member]
Sublease agreement term
Solar Array And Related Energy Output, Sublease Agreement Term
Solar Array And Related Energy Output, Sublease Agreement Term
INCOME PER COMMON SHARE
Earnings Per Share [Abstract]
Distribution from equity investees in excess of equity in earnings
Proceeds from Equity Method Investment, Distribution, Return of Capital
ES
NJRES to Steckman RIdge Afffiliate [Member]
Affiliate transactions between NJRES and NJR subsidiary Steckman Ridge
NJNG
Natural Gas Distribution (NJNG) Segment [Member]
NJNG is a natural gas utility that provides regulated retail natural gas service in central and northern New Jersey and also participates in the off-system sales and capacity release markets
ITC carryforward
Tax Credit Carryforward, Amount
Allowance for equity used during construction
Increase (Decrease) in Allowance for Equity Funds Used During Construction, Operating Activities
Increase (Decrease) in Allowance for Equity Funds Used During Construction, Operating Activities
Unbilled
Unbilled Revenues [Member]
Customers' credit balances and deposits
Increase (Decrease) in Contract with Customer, Liability
Short-term Debt, Type [Axis]
Short-Term Debt, Type [Axis]
Construction work in progress
Public Utilities, Property, Plant and Equipment, Work in Progress
Public Utilities, Property, Plant and Equipment, Work in Progress
Treasury stock and other (in shares)
Treasury Stock, Shares, Acquired
Natural gas sold at cost under asset management agreement (in Bcf)
Natural Gas Storage Sold Under Asset Management Agreement from NJNG to NJRES
Agreement between subsidiaries as a result of gas storage sold under asset management agreement
Award Timing Disclosures [Line Items]
Service cost
Defined Benefit Plan, Service Cost
Renewal term
Lessee, Operating Lease, Renewal Term
Proceeds from long-term debt
Proceeds from Issuance of Other Long-Term Debt
Total lease assets
Lease, Right-of-Use Asset
Lease, Right-of-Use Asset
Operation and maintenance
Other Operating Income (Expense) [Member]
Recovery of natural gas costs
Increase (Decrease) in Recoverable Refundable Gas Costs
NET INCOME
Net income
Net income
Total net income
Net Income (Loss) Attributable to Parent
NONCURRENT LIABILITIES
Noncurrent Liabilities
Liabilities, Noncurrent [Abstract]
Broker margin - current liabilities
Other Payable to Broker-Dealer and Clearing Organization
Number of principal subsidiaries
Number Of Principal Subsidiaries
Number Of Principal Subsidiaries
Construction work in progress
Construction in Progress [Member]
Oil and Gas, Full Cost Method, Capitalized Cost Excluded from Amortization [Table]
Oil and Gas, Full Cost Method, Capitalized Cost Excluded from Amortization [Table]
Loans receivable in other noncurrent assets
Financing Receivable, before Allowance for Credit Loss, Noncurrent
Segment Reporting Information [Line Items]
Segment Reporting Information [Line Items]
Revenues out of scope
Revenue Not from Contract with Customer
Adoption Date
Trading Arrangement Adoption Date
Meter License
Meter License [Member]
Meter License [Member]
Reclassification
Reclassification, Comparability Adjustment [Policy Text Block]
Term of contract
Lessee, Operating Lease, Term of Contract
Eliminations
Consolidation, Eliminations [Member]
Customer [Axis]
Customer [Axis]
OPERATING INCOME
Operating Income (Loss)
Schedule of Offsetting Liabilities
Offsetting Liabilities [Table Text Block]
Retained earnings
Retained Earnings (Accumulated Deficit)
Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested
Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member]
Cash Flow Hedges
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Subsequent Event Type [Domain]
Subsequent Event Type [Domain]
Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table
Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member]
Retirement Plan Type [Axis]
Retirement Plan Type [Axis]
Credit Risk Exposure [Line Items]
Credit Derivatives [Line Items]
Other income, net
Other Nonoperating Income (Expense)
Statement [Table]
Statement [Table]
Deferred income taxes
Deferred Income Tax Expense (Benefit)
Adjustments to reconcile net income to cash flows from operating activities
Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract]
CASH FLOWS USED IN FINANCING ACTIVITIES
Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract]
Amortization period for plan amendment
Amortization Period For Defined Benefit Plan Amendments
Amortization Period For Defined Benefit Plan Amendments
Loans receivable in other current assets
Financing Receivable, before Allowance for Credit Loss, Current
Customer accounts receivable
Accounts Receivable, after Allowance for Credit Loss [Abstract]
Customers' credit, beginning
Customers' credit, end
Customers' credit balances and deposits
Contract with Customer, Liability
Finance lease liabilities
Finance Lease, Liability, Noncurrent
ES
Energy Services (ES) Segment [Member]
Energy Services as a segment for reporting financial information as of the reporting period shown.
All Adjustments to Compensation
All Adjustments to Compensation [Member]
Electricity sales
Electricity [Member]
Amendment Flag
Amendment Flag
OPEB
Other Postretirement Benefits Plan [Member]
Total operating revenues
Operating revenues attributable to reportable segments
Regulated and Unregulated Operating Revenue
Termination Date
Trading Arrangement Termination Date
Insider Trading Policies and Procedures Adopted
Insider Trading Policies and Procedures Adopted [Flag]
Basic (in shares)
Weighted average shares of common stock outstanding-basic (in shares)
Weighted average shares of common stock outstanding-basic (in shares)
Weighted Average Number of Shares Outstanding, Basic
Schedule of Earnings Per Share Basic and Diluted
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Related Party Transaction [Domain]
Related Party Transaction [Domain]
Segment Reporting [Abstract]
Segment Reporting [Abstract]
Debt Disclosure [Abstract]
Debt Disclosure [Abstract]
Assets, Current
Assets, Current [Member]
Assets, Current
Tax on amounts reclassified from accumulated other comprehensive loss
Reclassification from AOCI, Current Period, Tax
Liability Derivatives
Offsetting Derivative Liabilities [Abstract]
Forgone Recovery due to Expense of Enforcement, Amount
Forgone Recovery due to Expense of Enforcement, Amount
Non cash lease expense
Amortization Of Operating Leases
Amortization Of Operating Leases
Conservation Incentive Program
Conservation Incentive Program
Conservation Incentive Program [Member]
Conservation Incentive Program (CIP) is a regulator approved mechanism that permits the Utility to normalize utility gross margin recoveries for fluctuations in weather and usage. (Member)
Common stock, par value (usd per share)
Common Stock, Par or Stated Value Per Share
Base Rate Stipulation
Base Rate Stipulation [Member]
Base Rate Stipulation
Public Utilities, Regulatory Proceeding [Axis]
Public Utilities, Regulatory Proceeding [Axis]
NJNG
NJNG to Steckman Ridge Affiliate [Member]
Affiliate transactions between NJNG and NJR subsidiary Steckman Ridge
Use of Estimates
Use of Estimates, Policy [Policy Text Block]
Operating cash flows for finance leases
Finance Lease, Interest Payment on Liability
Noninvestment grade
External Credit Rating, Noninvestment Grade [Member]
Construction work in progress
Construction in Progress, Gross
Amounts Offset
Derivative Asset, Subject to Master Netting Arrangement, Liability Offset
Insider Trading Arrangements [Line Items]
Accumulated depreciation and amortization, nonutility plant and equipment
Accumulated Depreciation, Depletion and Amortization, Other Property, Plant, and Equipment
Accumulated Depreciation, Depletion and Amortization, Other Property, Plant, and Equipment
Regulatory liabilities
Regulatory liability-current
Regulatory Liability, Current
Billed
Billed Revenues [Member]
Financial Asset, Not Past Due
Financial Asset, Not Past Due [Member]
Cash and Cash Equivalents [Axis]
Cash and Cash Equivalents [Axis]
Commitment fee percentage
Line of Credit Facility, Commitment Fee Percentage
Pension Adjustments Prior Service Cost
Pension Adjustments Prior Service Cost [Member]
Material Terms of Trading Arrangement
Material Terms of Trading Arrangement [Text Block]
Proceeds from sale leaseback transactions - solar
Sale Leaseback Transaction, Net Proceeds, Financing Activities, Solar
Sale Leaseback Transaction, Net Proceeds, Financing Activities, Solar
Nonutility
Unregulated Operation [Member]
Consolidation Items [Axis]
Consolidation Items [Axis]
Natural gas in storage, at average cost
Natural Gas in Storage, value
Energy Related Inventory, Natural Gas in Storage
Counterparty Name [Axis]
Counterparty Name [Axis]
Natural gas purchases
Natural Gas Purchases [Member]
Gas Purchases increase/decrease of derivative instruments as shown for the period
Liability for future expenditures
Environmental Restoration Costs [Member]
Entity Incorporation, State or Country Code
Entity Incorporation, State or Country Code
Non-NEOs
Non-NEOs [Member]
Effective term
Operating Loss Carryforward, Expiration Terms
Operating Loss Carryforward, Expiration Terms