$NJR
NEW JERSEY RESOURCES CORP Stock $njr

$njr Overview Financials Valuation SEC Filings Company Website

2010 Q3 Form 10-K Financial Statement

#000035630911000033 Filed on November 23, 2011

Income Statement

Concept	2010 Q3	2010 Q2	2010 Q1
Revenue	$631.5M	$479.9M	$918.3M
YoY Change	53.06%	8.79%	-2.04%
Cost Of Revenue	$574.0M	$440.8M	$703.4M
YoY Change	48.82%	10.06%	-10.72%
Gross Profit	$57.50M	$39.10M	$214.9M
YoY Change	113.75%	-3.69%	43.65%
Gross Profit Margin	9.11%	8.15%	23.4%
Selling, General & Admin	$4.900M	$6.200M	$21.20M
YoY Change	11.36%	-1.59%	2.42%
% of Gross Profit	8.52%	15.86%	9.87%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$8.600M	$8.300M	$8.200M
YoY Change	11.69%	2.47%	6.49%
% of Gross Profit	14.96%	21.23%	3.82%
Operating Expenses	$58.00M	$498.7M	$796.3M
YoY Change	3.02%	675.55%	715.92%
Operating Profit	-$486.0K	-$18.79M	$122.0M
YoY Change	-98.35%	-20.73%	134.64%
Interest Expense	-$5.300M	$5.238M	$5.291M
YoY Change	3.92%	-200.73%	-225.98%
% of Operating Profit			4.34%
Other Income/Expense, Net	$1.800M	$1.300M	$1.000M
YoY Change	38.46%	8.33%	-9.09%
Pretax Income	-$4.000M	-$22.71M	$117.7M
YoY Change	-87.95%	-18.3%	141.29%
Income Tax	-$3.400M	-$10.56M	$46.49M
% Of Pretax Income			39.48%
Net Earnings	$1.515M	-$10.18M	$74.22M
YoY Change	-108.02%	-28.33%	131.93%
Net Earnings / Revenue	0.24%	-2.12%	8.08%
Basic Earnings Per Share	$0.04	-$0.25	$1.79
Diluted Earnings Per Share	$0.04	-$0.25	$1.78
COMMON SHARES
Basic Shares Outstanding		41.24M shares	41.42M shares
Diluted Shares Outstanding		41.24M shares	41.73M shares

Balance Sheet

Concept	2010 Q3	2010 Q2	2010 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments	$900.0K	$91.70M	$156.1M
YoY Change	-97.51%	19.09%	87.39%
Cash & Equivalents	$943.0K	$91.65M	$156.1M
Short-Term Investments
Other Short-Term Assets	$12.68M	$215.0M	$280.4M
YoY Change	-30.06%	-31.62%	-36.17%
Inventory	$342.2M	$285.3M	$180.0M
Prepaid Expenses
Receivables	$160.0M	$176.1M	$199.5M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$785.0M	$768.1M	$816.1M
YoY Change	14.74%	6.28%	-0.52%
LONG-TERM ASSETS
Property, Plant & Equipment	$1.136B	$1.101B	$1.083B
YoY Change	6.7%	4.94%	4.32%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$158.9M	$168.7M	$168.5M
YoY Change	-0.97%	7.93%	13.32%
Other Assets	$20.90M	$407.4M	$429.0M
YoY Change	84.45%	5.87%	-3.83%
Total Long-Term Assets	$642.4M	$1.677B	$1.681B
YoY Change	12.23%	5.46%	2.91%
TOTAL ASSETS
Total Short-Term Assets	$785.0M	$768.1M	$816.1M
Total Long-Term Assets	$642.4M	$1.677B	$1.681B
Total Assets	$2.563B	$2.446B	$2.497B
YoY Change	10.43%	5.71%	1.76%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$47.30M	$266.9M	$245.0M
YoY Change	6.41%	16.91%	7.83%
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$147.6M	$164.3M	$98.70M
YoY Change	2.93%	238.07%	887.0%
Long-Term Debt Due	$31.26M	$27.30M	$27.20M
YoY Change	380.14%	355.0%	361.02%
Total Short-Term Liabilities	$705.8M	$611.5M	$645.4M
YoY Change	25.16%	8.13%	-5.6%
LONG-TERM LIABILITIES
Long-Term Debt	$428.9M	$434.9M	$436.5M
YoY Change	-5.83%	-4.98%	-4.9%
Other Long-Term Liabilities	$7.241M	$359.2M	$367.4M
YoY Change	-98.04%	14.36%	14.56%
Total Long-Term Liabilities	$702.9M	$794.1M	$803.9M
YoY Change	14.87%	2.89%	3.1%
TOTAL LIABILITIES
Total Short-Term Liabilities	$705.8M	$611.5M	$645.4M
Total Long-Term Liabilities	$702.9M	$794.1M	$803.9M
Total Liabilities	$1.409B	$1.704B	$1.728B
YoY Change	19.81%	8.02%	2.72%
SHAREHOLDERS EQUITY
Retained Earnings	$487.0M
YoY Change	14.38%
Common Stock	$360.9M
YoY Change	-61.57%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$110.4M
YoY Change	30.48%
Treasury Stock Shares	2.720M shares
Shareholders Equity	$725.5M	$741.2M	$768.9M
YoY Change
Total Liabilities & Shareholders Equity	$2.563B	$2.446B	$2.497B
YoY Change	10.43%	5.71%	1.76%

Cashflow Statement

Concept	2010 Q3	2010 Q2	2010 Q1
OPERATING ACTIVITIES
Net Income	$1.515M	-$10.18M	$74.22M
YoY Change	-108.02%	-28.33%	131.93%
Depreciation, Depletion And Amortization	$8.600M	$8.300M	$8.200M
YoY Change	11.69%	2.47%	6.49%
Cash From Operating Activities	-$16.50M	-$89.10M	$297.2M
YoY Change	-80.24%	-1956.25%	-22.38%
INVESTING ACTIVITIES
Capital Expenditures	-$40.00M	-$22.40M	-$17.50M
YoY Change	66.67%	65.93%	-10.71%
Acquisitions
YoY Change
Other Investing Activities	-$600.0K	-$1.900M	-$3.300M
YoY Change	-86.96%	-85.71%	-65.63%
Cash From Investing Activities	-$40.70M	-$24.10M	-$20.90M
YoY Change	42.31%	-9.74%	-28.91%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-33.50M	48.70M	-130.6M
YoY Change	-147.05%	212.18%	-55.89%
NET CHANGE
Cash From Operating Activities	-16.50M	-89.10M	297.2M
Cash From Investing Activities	-40.70M	-24.10M	-20.90M
Cash From Financing Activities	-33.50M	48.70M	-130.6M
Net Change In Cash	-90.70M	-64.50M	145.7M
YoY Change	121.76%	923.81%	153.83%
FREE CASH FLOW
Cash From Operating Activities	-$16.50M	-$89.10M	$297.2M
Capital Expenditures	-$40.00M	-$22.40M	-$17.50M
Free Cash Flow	$23.50M	-$66.70M	$314.7M
YoY Change	-139.5%	-464.48%	-21.81%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2010Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-12007000	USD
CY2010Q3	us-gaap	Additional Collateral Aggregate Fair Value AdditionalCollateralAggregateFairValue	5500000	USD
CY2011Q3	us-gaap	Accounts Payable Current AccountsPayableCurrent	65960000	USD
CY2010Q3	us-gaap	Accounts Payable Current AccountsPayableCurrent	47297000	USD
CY2010Q3	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	162961000	USD
CY2011Q3	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	209266000	USD
CY2010Q3	us-gaap	Accrued Environmental Loss Contingencies Noncurrent AccruedEnvironmentalLossContingenciesNoncurrent	201600000	USD
CY2011Q3	us-gaap	Accrued Environmental Loss Contingencies Noncurrent AccruedEnvironmentalLossContingenciesNoncurrent	182900000	USD
CY2011Q3	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	778000	USD
CY2010Q3	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	23737000	USD
CY2011Q3	us-gaap	Accumulated Deferred Investment Tax Credit AccumulatedDeferredInvestmentTaxCredit	6227000	USD
CY2010Q3	us-gaap	Accumulated Deferred Investment Tax Credit AccumulatedDeferredInvestmentTaxCredit	6549000	USD
CY2011Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	410237000	USD
CY2010Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	423126000	USD
CY2010Q3	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	4492000	USD
CY2011Q3	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	4530000	USD
CY2010Q3	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	27000	USD
CY2011Q3	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	173000	USD
CY2010Q3	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	16526000	USD
CY2011Q3	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	15307000	USD
CY2011Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-10604000	USD
CY2011Q3	us-gaap	Additional Collateral Aggregate Fair Value AdditionalCollateralAggregateFairValue	1700000	USD
CY2011Q3	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	265524000	USD
CY2010Q3	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	251147000	USD
CY2009	us-gaap	Additions To Noncurrent Assets AdditionsToNoncurrentAssets	81634000	USD
CY2010	us-gaap	Additions To Noncurrent Assets AdditionsToNoncurrentAssets	97379000	USD
CY2011	us-gaap	Additions To Noncurrent Assets AdditionsToNoncurrentAssets	177531000	USD
CY2011	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	2007000	USD
CY2009	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	1686000	USD
CY2010	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	326000	USD
CY2010	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	2654000	USD
CY2009	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	3100000	USD
CY2011	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	2847000	USD
CY2011	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	1684000	USD
CY2010	us-gaap	Asset Retirement Obligation Cash Paid To Settle AssetRetirementObligationCashPaidToSettle	809000	USD
CY2011	us-gaap	Asset Retirement Obligation Cash Paid To Settle AssetRetirementObligationCashPaidToSettle	826000	USD
CY2010	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	149000	USD
CY2010	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	1570000	USD
CY2009	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	1826000	USD
CY2010Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	2993000	USD
CY2011Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	4612000	USD
CY2010	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2009	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2011	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2009Q3	us-gaap	Asset Retirement Obligation AssetRetirementObligation	25097000	USD
CY2010Q3	us-gaap	Asset Retirement Obligation AssetRetirementObligation	26009000	USD
CY2011Q3	us-gaap	Asset Retirement Obligation AssetRetirementObligation	27026000	USD
CY2011	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	1663000	USD
CY2010	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	1572000	USD
CY2009	us-gaap	Asset Retirement Obligation Cash Paid To Settle AssetRetirementObligationCashPaidToSettle	943000	USD
CY2011	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	180000	USD
CY2010	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	809000	USD
CY2011	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	826000	USD
CY2011Q3	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	27026000	USD
CY2010Q3	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	26009000	USD
CY2010Q3	us-gaap	Assets Assets	2563133000	USD
CY2011Q3	us-gaap	Assets Assets	2649444000	USD
CY2009Q3	us-gaap	Assets Assets	2321030000	USD
CY2011Q3	us-gaap	Assets Current AssetsCurrent	732367000	USD
CY2010Q3	us-gaap	Assets Current AssetsCurrent	785008000	USD
CY2011Q3	us-gaap	Assets Noncurrent AssetsNoncurrent	621150000	USD
CY2010Q3	us-gaap	Assets Noncurrent AssetsNoncurrent	642406000	USD
CY2011Q3	us-gaap	Available For Sale Securities Equity Securities Noncurrent AvailableForSaleSecuritiesEquitySecuritiesNoncurrent	10300000	USD
CY2010Q3	us-gaap	Available For Sale Securities Equity Securities Noncurrent AvailableForSaleSecuritiesEquitySecuritiesNoncurrent	10300000	USD
CY2011Q3	us-gaap	Available For Sale Securities Gross Unrealized Gain Loss AvailableForSaleSecuritiesGrossUnrealizedGainLoss	7700000	USD
CY2010Q3	us-gaap	Capitalization Longterm Debt And Equity CapitalizationLongtermDebtAndEquity	1154408000	USD
CY2011Q3	us-gaap	Capitalization Longterm Debt And Equity CapitalizationLongtermDebtAndEquity	1203054000	USD
CY2010Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	943000	USD
CY2009Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	36186000	USD
CY2011Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	7440000	USD
CY2008Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	42626000	USD
CY2011	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	6497000	USD
CY2009	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-6440000	USD
CY2010	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-35243000	USD
CY2011Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2010Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2011	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.44
CY2009	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.24
CY2010	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.36
CY2011Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	2.50
CY2010Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	2.50
CY2011Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	75000000	shares
CY2010Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	75000000	shares
CY2010Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	41173608	shares
CY2009Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	41586000	shares
CY2011Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	41421786	shares
CY2008Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	42058000	shares
CY2010Q3	us-gaap	Common Stock Value CommonStockValue	109713000	USD
CY2011Q3	us-gaap	Common Stock Value CommonStockValue	110258000	USD
CY2009	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	19904000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	102702000	USD
CY2010	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	115502000	USD
CY2011	us-gaap	Concentration Risk Credit Risk Financial Instrument Maximum Exposure ConcentrationRiskCreditRiskFinancialInstrumentMaximumExposure	187823000	USD
CY2011	us-gaap	Cost Of Goods And Services Energy Commodities And Services CostOfGoodsAndServicesEnergyCommoditiesAndServices	2016208000	USD
CY2009	us-gaap	Cost Of Goods And Services Energy Commodities And Services CostOfGoodsAndServicesEnergyCommoditiesAndServices	1537411000	USD
CY2010	us-gaap	Cost Of Goods And Services Energy Commodities And Services CostOfGoodsAndServicesEnergyCommoditiesAndServices	1591338000	USD
CY2011	us-gaap	Cost Of Natural Gas Purchases CostOfNaturalGasPurchases	534363000	USD
CY2010	us-gaap	Cost Of Natural Gas Purchases CostOfNaturalGasPurchases	576220000	USD
CY2009	us-gaap	Cost Of Natural Gas Purchases CostOfNaturalGasPurchases	707758000	USD
CY2009	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	26860000	USD
CY2011	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	14566000	USD
CY2010	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-7343000	USD
CY2011	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	6618000	USD
CY2009	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	7603000	USD
CY2010	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-981000	USD
CY2010Q3	us-gaap	Customer Advances And Deposits Current CustomerAdvancesAndDepositsCurrent	91957000	USD
CY2011Q3	us-gaap	Customer Advances And Deposits Current CustomerAdvancesAndDepositsCurrent	113776000	USD
CY2011	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	30932000	USD
CY2009	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-17713000	USD
CY2010	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	65258000	USD
CY2011	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	35034000	USD
CY2009	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-31435000	USD
CY2010	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	68458000	USD
CY2011Q3	us-gaap	Deferred Revenue Noncurrent DeferredRevenueNoncurrent	7633000	USD
CY2010Q3	us-gaap	Deferred Revenue Noncurrent DeferredRevenueNoncurrent	7656000	USD
CY2009	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-5052000	USD
CY2011	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-1301000	USD
CY2010	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	8527000	USD
CY2011Q3	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	-326284000	USD
CY2010Q3	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	-304107000	USD
CY2011Q3	us-gaap	Deferred Tax Assets Liabilities Net Current DeferredTaxAssetsLiabilitiesNetCurrent	1498000	USD
CY2010Q3	us-gaap	Deferred Tax Assets Liabilities Net Current DeferredTaxAssetsLiabilitiesNetCurrent	-25556000	USD
CY2010Q3	us-gaap	Deferred Tax Assets Liabilities Net Noncurrent DeferredTaxAssetsLiabilitiesNetNoncurrent	-278551000	USD
CY2011Q3	us-gaap	Deferred Tax Assets Liabilities Net Noncurrent DeferredTaxAssetsLiabilitiesNetNoncurrent	-327782000	USD
CY2010Q3	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	0	USD
CY2011Q3	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	1498000	USD
CY2011Q3	us-gaap	Deferred Tax Liabilities Deferred Expense DeferredTaxLiabilitiesDeferredExpense	327782000	USD
CY2010Q3	us-gaap	Deferred Tax Liabilities Deferred Expense DeferredTaxLiabilitiesDeferredExpense	278551000	USD
CY2011Q3	us-gaap	Defined Benefit Plan Debt Securities DefinedBenefitPlanDebtSecurities	0.47
CY2010Q3	us-gaap	Defined Benefit Plan Debt Securities DefinedBenefitPlanDebtSecurities	0.40
CY2012	us-gaap	Defined Benefit Plan Target Allocation Percentage Of Assets Debt Securities DefinedBenefitPlanTargetAllocationPercentageOfAssetsDebtSecurities	0.41
CY2010Q3	us-gaap	Defined Benefit Plan Weighted Average Asset Allocations DefinedBenefitPlanWeightedAverageAssetAllocations	1.00
CY2011Q3	us-gaap	Defined Benefit Plan Weighted Average Asset Allocations DefinedBenefitPlanWeightedAverageAssetAllocations	1.00
CY2011	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	1500000	USD
CY2010	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	1400000	USD
CY2009	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	1200000	USD
CY2011	us-gaap	Depreciation And Amortization DepreciationAndAmortization	34370000	USD
CY2010	us-gaap	Depreciation And Amortization DepreciationAndAmortization	32267000	USD
CY2009	us-gaap	Depreciation And Amortization DepreciationAndAmortization	30328000	USD
CY2009	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	31142000	USD
CY2011	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	35200000	USD
CY2010	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	33192000	USD
CY2010Q3	us-gaap	Derivative Assets DerivativeAssets	143143000	USD
CY2011Q3	us-gaap	Derivative Assets DerivativeAssets	106853000	USD
CY2010Q3	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	135186000	USD
CY2011Q3	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	100338000	USD
CY2011Q3	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	6515000	USD
CY2010Q3	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	7957000	USD
CY2010Q3	us-gaap	Derivative Liabilities DerivativeLiabilities	84087000	USD
CY2011Q3	us-gaap	Derivative Liabilities DerivativeLiabilities	75039000	USD
CY2010Q3	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	78447000	USD
CY2011Q3	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	68698000	USD
CY2011Q3	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	6341000	USD
CY2010Q3	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	5640000	USD
CY2010Q3	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	7400000	USD
CY2011Q3	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	4100000	USD
CY2010	us-gaap	Dividends Cash DividendsCash	56213000	USD
CY2009	us-gaap	Dividends Cash DividendsCash	52217000	USD
CY2011	us-gaap	Dividends Cash DividendsCash	59552000	USD
CY2011Q3	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	14912000	USD
CY2010Q3	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	13998000	USD
CY2009	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.65
CY2010	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.84
CY2011	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.45
CY2011Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.49
CY2010Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.59
CY2010Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.04
CY2010Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.79
CY2010Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.25
CY2011Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.18
CY2009Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.25
CY2011Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.55
CY2009	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.64
CY2011	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.44
CY2010	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.82
CY2011Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.18
CY2011Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.54
CY2010Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.59
CY2010Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.25
CY2010Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.78
CY2011Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.49
CY2009Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.24
CY2010Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.04
CY2011	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.271
CY2009	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.295
CY2010	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.355
CY2011	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2011Q3	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	3100000	USD
CY2011	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1163000	USD
CY2010	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1084000	USD
CY2009	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1274000	USD
CY2011Q3	us-gaap	Energy Related Inventory Natural Gas In Storage EnergyRelatedInventoryNaturalGasInStorage	294475000	USD
CY2010Q3	us-gaap	Energy Related Inventory Natural Gas In Storage EnergyRelatedInventoryNaturalGasInStorage	336163000	USD
CY2010	us-gaap	Equity Method Investment Net Sales Proceeds EquityMethodInvestmentNetSalesProceeds	721000	USD
CY2010	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	527000	USD
CY2010Q3	us-gaap	Equity Method Investments EquityMethodInvestments	158944000	USD
CY2011Q3	us-gaap	Equity Method Investments EquityMethodInvestments	159063000	USD
CY2010	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	669000	USD
CY2011	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	2007000	USD
CY2009	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	1686000	USD
CY2010	us-gaap	Excise And Sales Taxes ExciseAndSalesTaxes	56823000	USD
CY2011	us-gaap	Excise And Sales Taxes ExciseAndSalesTaxes	66910000	USD
CY2009	us-gaap	Excise And Sales Taxes ExciseAndSalesTaxes	74750000	USD
CY2010	us-gaap	Excise Taxes Collected ExciseTaxesCollected	8300000	USD
CY2009	us-gaap	Excise Taxes Collected ExciseTaxesCollected	8900000	USD
CY2011	us-gaap	Excise Taxes Collected ExciseTaxesCollected	9000000	USD
CY2011Q3	us-gaap	Foreign Currency Cash Flow Hedge Gain Loss To Be Reclassified During Next12 Months ForeignCurrencyCashFlowHedgeGainLossToBeReclassifiedDuringNext12Months	144000	USD
CY2011Q3	us-gaap	Gas Purchase Payable Current GasPurchasePayableCurrent	252691000	USD
CY2010Q3	us-gaap	Gas Purchase Payable Current GasPurchasePayableCurrent	230402000	USD
CY2011Q3	us-gaap	Good Faith And Margin Deposits With Broker Dealers GoodFaithAndMarginDepositsWithBrokerDealers	22595000	USD
CY2010Q3	us-gaap	Good Faith And Margin Deposits With Broker Dealers GoodFaithAndMarginDepositsWithBrokerDealers	19241000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	172132000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	127125000	USD
CY2009	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	31465000	USD
CY2010	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	10017000	USD
CY2011	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	11839000	USD
CY2009	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	7153000	USD
CY2010	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	-839000	USD
CY2011	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	-2791000	USD
CY2009	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	-2924000	USD
CY2011Q3	us-gaap	Income Tax Examination Liability Refund Adjustment From Settlement With Taxing Authority IncomeTaxExaminationLiabilityRefundAdjustmentFromSettlementWithTaxingAuthority	2400000	USD
CY2009	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	11376000	USD
CY2011	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	37665000	USD
CY2010	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	64692000	USD
CY2009	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	13516000	USD
CY2010	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	63753000	USD
CY2011	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	48638000	USD
CY2011	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	-2558000	USD
CY2009	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	-2191000	USD
CY2010	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	-1986000	USD
CY2010	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-1023000	USD
CY2009	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-1118000	USD
CY2011	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-966000	USD
CY2009	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	2763000	USD
CY2011	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	3435000	USD
CY2010	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	4626000	USD
CY2010	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	0	USD
CY2011	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	0	USD
CY2009	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	-1272000	USD
CY2011	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	13150000	USD
CY2010	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	769000	USD
CY2009	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	322000	USD
CY2010	us-gaap	Income Taxes Paid IncomeTaxesPaid	24177000	USD
CY2009	us-gaap	Income Taxes Paid IncomeTaxesPaid	34298000	USD
CY2011	us-gaap	Income Taxes Paid IncomeTaxesPaid	5165000	USD
CY2009	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-5593000	USD
CY2011	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	4469000	USD
CY2010	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	291000	USD
CY2010	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	66189000	USD
CY2009	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-117733000	USD
CY2011	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	49473000	USD
CY2009	us-gaap	Increase Decrease In Allowance For Equity Funds Used During Construction IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction	568000	USD
CY2011	us-gaap	Increase Decrease In Allowance For Equity Funds Used During Construction IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction	2100000	USD
CY2010	us-gaap	Increase Decrease In Allowance For Equity Funds Used During Construction IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction	2165000	USD
CY2009	us-gaap	Increase Decrease In Customer Deposits IncreaseDecreaseInCustomerDeposits	9760000	USD
CY2011	us-gaap	Increase Decrease In Customer Deposits IncreaseDecreaseInCustomerDeposits	21819000	USD
CY2010	us-gaap	Increase Decrease In Customer Deposits IncreaseDecreaseInCustomerDeposits	18740000	USD
CY2009	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-169157000	USD
CY2011	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-40363000	USD
CY2010	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	38743000	USD
CY2010	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	35297000	USD
CY2011	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	-43748000	USD
CY2009	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	-154271000	USD
CY2011	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	-7081000	USD
CY2009	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	-5886000	USD
CY2010	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	-3525000	USD
CY2010	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	1691000	USD
CY2011	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	11744000	USD
CY2009	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	45061000	USD
CY2011	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-3667000	USD
CY2010	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	2035000	USD
CY2009	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-14596000	USD
CY2011	us-gaap	Increase Decrease In Payables To Broker Dealers IncreaseDecreaseInPayablesToBrokerDealers	-31813000	USD
CY2010	us-gaap	Increase Decrease In Payables To Broker Dealers IncreaseDecreaseInPayablesToBrokerDealers	35468000	USD
CY2009	us-gaap	Increase Decrease In Payables To Broker Dealers IncreaseDecreaseInPayablesToBrokerDealers	-14045000	USD
CY2011	us-gaap	Increase Decrease In Recoverable Refundable Gas Costs IncreaseDecreaseInRecoverableRefundableGasCosts	-41118000	USD
CY2009	us-gaap	Increase Decrease In Recoverable Refundable Gas Costs IncreaseDecreaseInRecoverableRefundableGasCosts	-64197000	USD
CY2010	us-gaap	Increase Decrease In Recoverable Refundable Gas Costs IncreaseDecreaseInRecoverableRefundableGasCosts	72688000	USD
CY2011	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	-58000	USD
CY2010	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	445000	USD
CY2009	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	-4200000	USD
CY2009	us-gaap	Interest Expense InterestExpense	21014000	USD
CY2010	us-gaap	Interest Expense InterestExpense	21251000	USD
CY2011	us-gaap	Interest Expense InterestExpense	19623000	USD
CY2009	us-gaap	Interest Paid Net InterestPaidNet	18866000	USD
CY2010	us-gaap	Interest Paid Net InterestPaidNet	14665000	USD
CY2011	us-gaap	Interest Paid Net InterestPaidNet	17323000	USD
CY2009	us-gaap	Investment Income Interest InvestmentIncomeInterest	3420000	USD
CY2011	us-gaap	Investment Income Interest InvestmentIncomeInterest	1216000	USD
CY2010	us-gaap	Investment Income Interest InvestmentIncomeInterest	2018000	USD
CY2010Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2563133000	USD
CY2011Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2649444000	USD
CY2011Q3	us-gaap	Liabilities Current LiabilitiesCurrent	703384000	USD
CY2010Q3	us-gaap	Liabilities Current LiabilitiesCurrent	705798000	USD
CY2011Q3	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	743006000	USD
CY2010Q3	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	702927000	USD
CY2011Q3	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	426797000	USD
CY2010Q3	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	428925000	USD
CY2011Q3	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	7575000	USD
CY2010Q3	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	31257000	USD
CY2011Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	319800000	USD
CY2011Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	0	USD
CY2011Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	0	USD
CY2011Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	0	USD
CY2011Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	60000000	USD
CY2011Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	0	USD
CY2009	us-gaap	Other Comprehensive Income Defined Benefit Plans Tax OtherComprehensiveIncomeDefinedBenefitPlansTax	4856000	USD
CY2010	us-gaap	Other Comprehensive Income Defined Benefit Plans Tax OtherComprehensiveIncomeDefinedBenefitPlansTax	1464000	USD
CY2011	us-gaap	Other Comprehensive Income Defined Benefit Plans Tax OtherComprehensiveIncomeDefinedBenefitPlansTax	-567000	USD
CY2011	us-gaap	Maximum Length Of Time Hedged In Foreign Currency Cash Flow Hedge MaximumLengthOfTimeHedgedInForeignCurrencyCashFlowHedge	November 2013
CY2011	us-gaap	Nature Of Operations NatureOfOperations	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">NATURE OF THE BUSINESS</font></div><div style="line-height:120%;text-align:justify;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:30px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">New Jersey Resources Corporation (NJR or the Company) provides regulated gas distribution services and certain non-regulated businesses primarily through the following subsidiaries:</font></div><div style="line-height:120%;text-align:justify;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:30px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">New Jersey Natural Gas Company (NJNG) provides natural gas utility service to approximately </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">495,000</font><font style="font-family:inherit;font-size:10pt;"> retail customers in central and northern New Jersey and is subject to rate regulation by the New Jersey Board of Public Utilities (BPU). NJNG comprises the Natural Gas Distribution segment;</font></div><div style="line-height:120%;text-align:justify;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:30px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">NJR Energy Services Company (NJRES) comprises the Energy Services segment that maintains and transacts around a portfolio of natural gas storage and transportation positions and provides wholesale energy and energy management services;</font></div><div style="line-height:120%;text-align:justify;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">NJR Clean Energy Ventures (NJRCEV) comprises the Clean Energy Ventures segment and reports the results of operations and assets related to the Company's capital investments in renewable energy projects, including solar;</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:30px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">NJR Energy Holdings Corporation (NJREH) primarily invests in energy-related ventures through its subsidiaries, NJNR Pipeline Company (Pipeline), which holds the Company's </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">5.53 percent</font><font style="font-family:inherit;font-size:10pt;"> ownership interest in Iroquois Gas Transmission L.P. (Iroquois), and NJR Steckman Ridge Storage Company, which holds the Company's </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">50 percent</font><font style="font-family:inherit;font-size:10pt;"> combined interest in Steckman Ridge GP, LLC and Steckman Ridge, LP (collectively, Steckman Ridge). Iroquois and Steckman Ridge comprise the Midstream Assets segment;</font></div><div style="line-height:120%;text-align:justify;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:30px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">NJR Retail Holdings Corporation (Retail Holdings) has two principal subsidiaries, NJR Home Services Company (NJRHS) and Commercial Realty & Resources Corporation (CR&R). Retail Holdings and NJR Energy Corporation (NJR Energy) are included in Retail and Other operations.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></div>
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-68527000	USD
CY2009	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-152404000	USD
CY2010	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-73255000	USD
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-175077000	USD
CY2009	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-121277000	USD
CY2010	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-101403000	USD
CY2009	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	267241000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	250101000	USD
CY2010	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	139415000	USD
CY2010	us-gaap	Net Income Loss NetIncomeLoss	117457000	USD
CY2009	us-gaap	Net Income Loss NetIncomeLoss	27242000	USD
CY2011	us-gaap	Net Income Loss NetIncomeLoss	101299000	USD
CY2011Q1	us-gaap	Net Income Loss NetIncomeLoss	63927000	USD
CY2009Q4	us-gaap	Net Income Loss NetIncomeLoss	51902000	USD
CY2010Q4	us-gaap	Net Income Loss NetIncomeLoss	24509000	USD
CY2010Q1	us-gaap	Net Income Loss NetIncomeLoss	74217000	USD
CY2011Q2	us-gaap	Net Income Loss NetIncomeLoss	20374000	USD
CY2010Q2	us-gaap	Net Income Loss NetIncomeLoss	-10177000	USD
CY2010Q3	us-gaap	Net Income Loss NetIncomeLoss	1515000	USD
CY2011Q3	us-gaap	Net Income Loss NetIncomeLoss	-7511000	USD
CY2011Q3	us-gaap	Notional Amount Of Foreign Currency Derivatives NotionalAmountOfForeignCurrencyDerivatives	7600000	USD
CY2010	us-gaap	Operating Expenses OperatingExpenses	2451179000	USD
CY2009	us-gaap	Operating Expenses OperatingExpenses	2544390000	USD
CY2011	us-gaap	Operating Expenses OperatingExpenses	2866208000	USD
CY2011	us-gaap	Operating Income Loss OperatingIncomeLoss	143001000	USD
CY2009	us-gaap	Operating Income Loss OperatingIncomeLoss	48070000	USD
CY2010	us-gaap	Operating Income Loss OperatingIncomeLoss	188125000	USD
CY2010Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	122012000	USD
CY2011Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	93202000	USD
CY2010Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	40263000	USD
CY2010Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-18786000	USD
CY2009Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	85385000	USD
CY2011Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	27182000	USD
CY2011Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-17646000	USD
CY2010Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-486000	USD
CY2010Q3	us-gaap	Other Assets Current OtherAssetsCurrent	12680000	USD
CY2011Q3	us-gaap	Other Assets Current OtherAssetsCurrent	14698000	USD
CY2011Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	21387000	USD
CY2010Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	20904000	USD
CY2009	us-gaap	Other Comprehensive Income Available For Sale Securities Tax OtherComprehensiveIncomeAvailableForSaleSecuritiesTax	37000	USD
CY2010	us-gaap	Other Comprehensive Income Available For Sale Securities Tax OtherComprehensiveIncomeAvailableForSaleSecuritiesTax	-1066000	USD
CY2011	us-gaap	Other Comprehensive Income Available For Sale Securities Tax OtherComprehensiveIncomeAvailableForSaleSecuritiesTax	-24000	USD
CY2011	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Period Increase Decrease OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease	1219000	USD
CY2010	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Period Increase Decrease OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease	-3402000	USD
CY2009	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Period Increase Decrease OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease	-7181000	USD
CY2009	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Tax Portion Attributable To Parent OtherComprehensiveIncomeDerivativesQualifyingAsHedgesTaxPortionAttributableToParent	74000	USD
CY2011	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Tax Portion Attributable To Parent OtherComprehensiveIncomeDerivativesQualifyingAsHedgesTaxPortionAttributableToParent	-84000	USD
CY2010	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Tax Portion Attributable To Parent OtherComprehensiveIncomeDerivativesQualifyingAsHedgesTaxPortionAttributableToParent	69000	USD
CY2009	us-gaap	Other Comprehensive Income Loss Net Of Tax Period Increase Decrease OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease	-7338000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Net Of Tax Period Increase Decrease OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease	1403000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Net Of Tax Period Increase Decrease OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease	-1955000	USD
CY2010	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-97000	USD
CY2009	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-105000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	146000	USD
CY2009	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-52000	USD
CY2010	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	1544000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	38000	USD
CY2010	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	148565000	USD
CY2009	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	149151000	USD
CY2011	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	163111000	USD
CY2011Q3	us-gaap	Other Inventory OtherInventory	7395000	USD
CY2010Q3	us-gaap	Other Inventory OtherInventory	6070000	USD
CY2010Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	7241000	USD
CY2011Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	5822000	USD
CY2010	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	5258000	USD
CY2011	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	3747000	USD
CY2009	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	4409000	USD
CY2011	us-gaap	Payments For Environmental Liabilities PaymentsForEnvironmentalLiabilities	14115000	USD
CY2010	us-gaap	Payments For Environmental Liabilities PaymentsForEnvironmentalLiabilities	3824000	USD
CY2009	us-gaap	Payments For Environmental Liabilities PaymentsForEnvironmentalLiabilities	12867000	USD
CY2010	us-gaap	Payments For Proceeds From Removal Costs PaymentsForProceedsFromRemovalCosts	7201000	USD
CY2009	us-gaap	Payments For Proceeds From Removal Costs PaymentsForProceedsFromRemovalCosts	6139000	USD
CY2011	us-gaap	Payments For Proceeds From Removal Costs PaymentsForProceedsFromRemovalCosts	8369000	USD
CY2011	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	10193000	USD
CY2009	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	30670000	USD
CY2010	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	29650000	USD
CY2010	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	53137000	USD
CY2009	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	50967000	USD
CY2011	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	58650000	USD
CY2011	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	0	USD
CY2009	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	43843000	USD
CY2010	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	4300000	USD
CY2010	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	2641000	USD
CY2011	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	71989000	USD
CY2009	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	0	USD
CY2011	us-gaap	Payments To Acquire Other Property Plant And Equipment PaymentsToAcquireOtherPropertyPlantAndEquipment	3549000	USD
CY2009	us-gaap	Payments To Acquire Other Property Plant And Equipment PaymentsToAcquireOtherPropertyPlantAndEquipment	388000	USD
CY2010	us-gaap	Payments To Acquire Other Property Plant And Equipment PaymentsToAcquireOtherPropertyPlantAndEquipment	917000	USD
CY2010	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	86620000	USD
CY2009	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	75107000	USD
CY2011	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	93624000	USD
CY2011	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	11496000	USD
CY2009	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	27676000	USD
CY2010	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	19567000	USD
CY2010Q3	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	93742000	USD
CY2011Q3	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	114305000	USD
CY2010Q3	us-gaap	Prepaid Taxes PrepaidTaxes	55880000	USD
CY2011Q3	us-gaap	Prepaid Taxes PrepaidTaxes	54311000	USD
CY2011Q3	us-gaap	Prescription Drug Subsidy Receipts Five Fiscal Years Thereafter PrescriptionDrugSubsidyReceiptsFiveFiscalYearsThereafter	1728000	USD
CY2011Q3	us-gaap	Prescription Drug Subsidy Receipts Year Five PrescriptionDrugSubsidyReceiptsYearFive	271000	USD
CY2011Q3	us-gaap	Prescription Drug Subsidy Receipts Year Four PrescriptionDrugSubsidyReceiptsYearFour	251000	USD
CY2011Q3	us-gaap	Prescription Drug Subsidy Receipts Year One PrescriptionDrugSubsidyReceiptsYearOne	198000	USD
CY2011Q3	us-gaap	Prescription Drug Subsidy Receipts Year Three PrescriptionDrugSubsidyReceiptsYearThree	233000	USD
CY2011Q3	us-gaap	Prescription Drug Subsidy Receipts Year Two PrescriptionDrugSubsidyReceiptsYearTwo	218000	USD
CY2011	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	13704000	USD
CY2010	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	6487000	USD
CY2009	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	16441000	USD
CY2009	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2011	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	97045000	USD
CY2010	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2009	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-34800000	USD
CY2011	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	11750000	USD
CY2010	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	4200000	USD
CY2011	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	0	USD
CY2010	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	721000	USD
CY2009	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	0	USD
CY2010	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	0	USD
CY2011	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	2396000	USD
CY2009	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	0	USD
CY2011Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1706164000	USD
CY2010Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1558845000	USD
CY2011Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1295927000	USD
CY2010Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1135719000	USD
CY2011Q3	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	110886000	USD
CY2010Q3	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	33497000	USD
CY2010	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	3307000	USD
CY2011	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	4865000	USD
CY2009	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	9739000	USD
CY2010	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	2165000	USD
CY2009	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	568000	USD
CY2011	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	2100000	USD
CY2011	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Interest PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest	1020000	USD
CY2010	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Interest PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest	978000	USD
CY2009	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Interest PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest	748000	USD
CY2010	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.0224
CY2009	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.0234
CY2011	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.0239
CY2011Q3	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	1595278000	USD
CY2010Q3	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	1525348000	USD
CY2011	us-gaap	Reclassifications Reclassifications	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:justify;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Change in Reportable Segments</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Effective </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">October 1, 2010</font><font style="font-family:inherit;font-size:10pt;">, NJR established Clean Energy Ventures as a new reportable segment to report the results of operations and assets related to the Company's capital investments in renewable energy projects. Consequently, the results of operations, assets and other financial information for NJRCEV, previously included in Retail and Other operations, are reported as components of Clean Energy Ventures. As required, prior year information for both Clean Energy Ventures and Retail and Other operations has been restated throughout this report to be consistent with current year presentation.</font></div></div>
CY2009	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	2592460000	USD
CY2011	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	3009209000	USD
CY2010	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	2639304000	USD
CY2011Q2	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	648169000	USD
CY2011Q1	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	976987000	USD
CY2009Q4	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	609546000	USD
CY2010Q1	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	918346000	USD
CY2010Q4	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	713152000	USD
CY2010Q2	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	479894000	USD
CY2010Q3	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	631518000	USD
CY2010	us-gaap	Regulated Operating Revenue Gas RegulatedOperatingRevenueGas	937433000	USD
CY2011	us-gaap	Regulated Operating Revenue Gas RegulatedOperatingRevenueGas	971724000	USD
CY2010Q3	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	51466000	USD
CY2011Q3	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	670901000	USD
CY2009	us-gaap	Regulated Operating Revenue Gas RegulatedOperatingRevenueGas	1082001000	USD
CY2011Q3	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	17630000	USD
CY2010Q3	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	454601000	USD
CY2011Q3	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	434185000	USD
CY2011Q3	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	4633000	USD
CY2010Q3	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	0	USD
CY2011Q3	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	59837000	USD
CY2010Q3	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	57648000	USD
CY2011	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	130091000	USD
CY2009	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	60362000	USD
CY2010	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	6749000	USD
CY2010Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	487015000	USD
CY2011Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	528762000	USD
CY2010	us-gaap	Sale Leaseback Transaction Net Proceeds SaleLeasebackTransactionNetProceeds	4925000	USD
CY2011	us-gaap	Sale Leaseback Transaction Net Proceeds SaleLeasebackTransactionNetProceeds	5901000	USD
CY2009	us-gaap	Sale Leaseback Transaction Net Proceeds SaleLeasebackTransactionNetProceeds	6268000	USD
CY2011Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	109763	shares
CY2009Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	333461	shares
CY2010Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	263128	shares
CY2011Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	27.84
CY2010Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	27.24
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Remaining Contractual Term ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm	5.0	years
CY2010Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	27.24
CY2009Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	26.36
CY2011Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	26.86
CY2010Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	23.20
CY2009Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	22.38
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	2026	shares
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	917	shares
CY2009	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	575	shares
CY2009Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	18.11
CY2010Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	18.32
CY2011Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	18.11
CY2009	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	0	shares
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	0	shares
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	0	shares
CY2009Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0.00
CY2011Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0.00
CY2010Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0.00
CY2009Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	333461	shares
CY2008Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	579143	shares
CY2011Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	109763	shares
CY2010Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	263128	shares
CY2009Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	26.36
CY2011Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	27.84
CY2008Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	24.66
CY2011Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	1617000	USD
CY2010Q3	us-gaap	Short Term Borrowings ShortTermBorrowings	147600000	USD
CY2011Q3	us-gaap	Short Term Borrowings ShortTermBorrowings	159350000	USD
CY2009	us-gaap	Stock Issued During Period Shares Share Based Compensation StockIssuedDuringPeriodSharesShareBasedCompensation	636000	shares
CY2011	us-gaap	Stock Issued During Period Shares Share Based Compensation StockIssuedDuringPeriodSharesShareBasedCompensation	621000	shares
CY2010	us-gaap	Stock Issued During Period Shares Share Based Compensation StockIssuedDuringPeriodSharesShareBasedCompensation	289000	shares
CY2011	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	152448	shares
CY2009	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	245107	shares
CY2010	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	68307	shares
CY2009	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	28130000	USD
CY2011	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	24128000	USD
CY2010	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	7672000	USD
CY2010	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	31530000	USD
CY2011	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	18511000	USD
CY2011	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	373000	shares
CY2011Q3	us-gaap	Treasury Stock Value TreasuryStockValue	117683000	USD
CY2009	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	20415000	USD
CY2010Q3	us-gaap	Treasury Stock Value TreasuryStockValue	110385000	USD
CY2011Q3	us-gaap	Stockholders Equity StockholdersEquity	776257000	USD
CY2010Q3	us-gaap	Stockholders Equity StockholdersEquity	725483000	USD
CY2008Q3	us-gaap	Stockholders Equity StockholdersEquity	728068000	USD
CY2009Q3	us-gaap	Stockholders Equity StockholdersEquity	689726000	USD
CY2011Q3	us-gaap	Treasury Stock Shares TreasuryStockShares	2808093	shares
CY2010Q3	us-gaap	Treasury Stock Shares TreasuryStockShares	2719761	shares
CY2009	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	1108000	shares
CY2010	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	701000	shares
CY2011Q3	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	7333000	USD
CY2010Q3	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	7411000	USD
CY2009	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-64465000	USD
CY2011	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-36876000	USD
CY2010	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	27392000	USD
CY2009Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2008Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	3800000	USD
CY2009Q1	us-gaap	Unrecognized Tax Benefits Period Increase Decrease UnrecognizedTaxBenefitsPeriodIncreaseDecrease	-3800000	USD
CY2010	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	1701871000	USD
CY2009	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	1510459000	USD
CY2011	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	2037485000	USD
CY2011	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:justify;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Use of Estimates</font></div><div style="line-height:120%;text-align:justify;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The preparation of financial statements in conformity with GAAP requires NJR to make estimates that affect the reported amounts of assets, liabilities, revenues, expenses and related disclosure of contingencies during the reporting period. On a monthly basis, NJR evaluates its estimates, including those related to the calculation of the fair value of derivative instruments, unbilled revenues, allowance for doubtful accounts, provisions for depreciation and amortization, regulatory assets and liabilities, income taxes, pensions and other postemployment benefits, contingencies related to environmental matters and litigation. AROs are evaluated on an annual basis. NJR bases its estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities that are not readily apparent from other sources.</font></div><div style="line-height:120%;text-align:justify;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">NJR has legal, regulatory and environmental proceedings during the normal course of business that can result in loss contingencies. When evaluating the potential for a loss, NJR will establish a reserve if a loss is probable and can be estimated, in which case it is NJR's policy to accrue the full amount of such estimate. Where the information is sufficient only to establish a range of probable liability, and no point within the range is more likely than any other, it is NJR's policy to accrue the lower end of the range. In the normal course of business, estimated amounts are subsequently adjusted to actual results that may differ from estimates.</font></div><div style="line-height:120%;text-align:justify;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;"><br clear="none"/></font></div></div>
CY2010	us-gaap	Utilities Operating Expense Other UtilitiesOperatingExpenseOther	45966000	USD
CY2009	us-gaap	Utilities Operating Expense Other UtilitiesOperatingExpenseOther	44992000	USD
CY2011	us-gaap	Utilities Operating Expense Other UtilitiesOperatingExpenseOther	51246000	USD
CY2011	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	209000	shares
CY2009	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	346000	shares
CY2010	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	266000	shares
CY2011	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	41568000	shares
CY2009	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	42465000	shares
CY2010	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	41630000	shares
CY2011	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	41359000	shares
CY2009	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	42119000	shares
CY2011	njr	Future Accretion Year Two FutureAccretionYearTwo	1849000	USD
CY2010	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	41364000	shares
CY2010	njr	Afudc Weighted Average Rate AfudcWeightedAverageRate	0.0739
CY2011	njr	Afudc Weighted Average Rate AfudcWeightedAverageRate	0.0521
CY2009	njr	Afudc Weighted Average Rate AfudcWeightedAverageRate	0.0433
CY2011Q3	njr	Clean Energy Program Current CleanEnergyProgramCurrent	15011000	USD
CY2010Q3	njr	Clean Energy Program Current CleanEnergyProgramCurrent	12644000	USD
CY2010Q3	njr	Clean Energy Program Noncurrent CleanEnergyProgramNoncurrent	18291000	USD
CY2011Q3	njr	Clean Energy Program Noncurrent CleanEnergyProgramNoncurrent	5133000	USD
CY2011	njr	Current Charges Recoverable Through Bgss CurrentChargesRecoverableThroughBgss	107000000	USD
CY2010	njr	Deferred Interest DeferredInterest	1700000	USD
CY2011	njr	Deferred Interest DeferredInterest	1100000	USD
CY2009	njr	Deferred Interest DeferredInterest	2000000	USD
CY2010Q3	njr	Defined Benefit Plan Assets Excluded From Asset Allocation Calculation DefinedBenefitPlanAssetsExcludedFromAssetAllocationCalculation	10100000	USD
CY2011	njr	Defined Benefit Plan Desired Rate Of Return Before Permissible Expense After Inflation DefinedBenefitPlanDesiredRateOfReturnBeforePermissibleExpenseAfterInflation	0.06
CY2012	njr	Defined Benefit Target Allocation Assets DefinedBenefitTargetAllocationAssets	1.00
CY2011	njr	Defined Contribution Plan Company Match Of Employee Contribution DefinedContributionPlanCompanyMatchOfEmployeeContribution	0.50
CY2011	njr	Defined Contribution Plan Maximum Employer Contribution By Percentage Of Employee Salary DefinedContributionPlanMaximumEmployerContributionByPercentageOfEmployeeSalary	0.06
CY2011	njr	Demand Fees DemandFees	211200000	USD
CY2010	njr	Demand Fees DemandFees	203700000	USD
CY2009	njr	Demand Fees DemandFees	197400000	USD
CY2009	njr	Effects Of Economic Hedging Related To Natural Gas Inventory Net Of Taxes EffectsOfEconomicHedgingRelatedToNaturalGasInventoryNetOfTaxes	34474000	USD
CY2010	njr	Effects Of Economic Hedging Related To Natural Gas Inventory Net Of Taxes EffectsOfEconomicHedgingRelatedToNaturalGasInventoryNetOfTaxes	1132000	USD
CY2011	njr	Effects Of Economic Hedging Related To Natural Gas Inventory Net Of Taxes EffectsOfEconomicHedgingRelatedToNaturalGasInventoryNetOfTaxes	-18086000	USD
CY2010	njr	Equity Method Investment Sale EquityMethodInvestmentSale	15000	shares
CY2011	njr	Estimated Capital Expenditures Subsequent Fiscal Year EstimatedCapitalExpendituresSubsequentFiscalYear	121200000	USD
CY2011	njr	Estimated Capital Expenditures Two Years Subsequent To Fiscal Year EstimatedCapitalExpendituresTwoYearsSubsequentToFiscalYear	70000000	USD
CY2011	njr	Future Accretion FutureAccretion	9576000	USD
CY2011	njr	Future Accretion Year Five FutureAccretionYearFive	2051000	USD
CY2011	njr	Future Accretion Year Four FutureAccretionYearFour	1991000	USD
CY2011	njr	Future Accretion Year One FutureAccretionYearOne	1754000	USD
CY2011	njr	Future Accretion Year Three FutureAccretionYearThree	1931000	USD
CY2010Q3	njr	Gas Stored Underground Bcf GasStoredUndergroundBcf	67000
CY2011Q3	njr	Gas Stored Underground Bcf GasStoredUndergroundBcf	59900
CY2011Q3	njr	Good Faith And Margin Liabilities With Broker Dealers GoodFaithAndMarginLiabilitiesWithBrokerDealers	0	USD
CY2011Q3	njr	Gross Margin GrossMargin	36520000	USD
CY2011Q2	njr	Gross Margin GrossMargin	71237000	USD
CY2010Q3	njr	Good Faith And Margin Liabilities With Broker Dealers GoodFaithAndMarginLiabilitiesWithBrokerDealers	28459000	USD
CY2009Q4	njr	Gross Margin GrossMargin	75308000	USD
CY2011	njr	Regulatory Costs Approved RegulatoryCostsApproved	609000	USD
CY2010Q2	njr	Gross Margin GrossMargin	45547000	USD
CY2010Q1	njr	Gross Margin GrossMargin	104635000	USD
CY2010Q3	njr	Gross Margin GrossMargin	131120000	USD
CY2011Q1	njr	Gross Margin GrossMargin	136572000	USD
CY2010Q4	njr	Gross Margin GrossMargin	82659000	USD
CY2011	njr	Income Tax Examination Liability Refund Adjustment From Settlement With Taxing Authority Per Share IncomeTaxExaminationLiabilityRefundAdjustmentFromSettlementWithTaxingAuthorityPerShare	0.06
CY2011	njr	Income Tax Reconciliation Basis Adjustment IncomeTaxReconciliationBasisAdjustment	2266000	USD
CY2010	njr	Income Tax Reconciliation Basis Adjustment IncomeTaxReconciliationBasisAdjustment	91000	USD
CY2009	njr	Income Tax Reconciliation Basis Adjustment IncomeTaxReconciliationBasisAdjustment	0	USD
CY2009	njr	Increase Decrease In Gas Purchases Payable IncreaseDecreaseInGasPurchasesPayable	-193487000	USD
CY2011	njr	Increase Decrease In Gas Purchases Payable IncreaseDecreaseInGasPurchasesPayable	22289000	USD
CY2010	njr	Increase Decrease In Gas Purchases Payable IncreaseDecreaseInGasPurchasesPayable	100290000	USD
CY2011	njr	Increase Decrease In Prepaid And Accrued Taxes IncreaseDecreaseInPrepaidAndAccruedTaxes	-8691000	USD
CY2010	njr	Increase Decrease In Prepaid And Accrued Taxes IncreaseDecreaseInPrepaidAndAccruedTaxes	-10431000	USD
CY2009	njr	Increase Decrease In Prepaid And Accrued Taxes IncreaseDecreaseInPrepaidAndAccruedTaxes	-8047000	USD
CY2010	njr	Net Financial Earnings Loss NetFinancialEarningsLoss	101764000	USD
CY2010	njr	Regulatory Costs Approved RegulatoryCostsApproved	900000	USD
CY2011	njr	Regulatory Liability Amortization Period RegulatoryLiabilityAmortizationPeriod	48	years
CY2011	njr	Net Financial Earnings Loss NetFinancialEarningsLoss	106533000	USD
CY2009	njr	Net Financial Earnings Loss NetFinancialEarningsLoss	100970000	USD
CY2010Q3	njr	Receivable By Subsidiary Percentage ReceivableBySubsidiaryPercentage	1.00
CY2011Q3	njr	Receivable By Subsidiary Percentage ReceivableBySubsidiaryPercentage	1.00
CY2011Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	41446786	shares
CY2009	njr	Sales Tax SalesTax	58700000	USD
CY2010	njr	Sales Tax SalesTax	41600000	USD
CY2011	njr	Sales Tax SalesTax	50700000	USD
CY2010	njr	Sales Tax Excise Tax And Assessments SalesTaxExciseTaxAndAssessments	49900000	USD
CY2011	njr	Sales Tax Excise Tax And Assessments SalesTaxExciseTaxAndAssessments	59700000	USD
CY2009	njr	Sales Tax Excise Tax And Assessments SalesTaxExciseTaxAndAssessments	67600000	USD
CY2011	njr	Total Retail Customers TotalRetailCustomers	495000	Customers
CY2011	njr	Unrealized Loss Gain From Derivative Instruments And Related Transactions Net Of Taxes UnrealizedLossGainFromDerivativeInstrumentsAndRelatedTransactionsNetOfTaxes	23320000	USD
CY2009	njr	Unrealized Loss Gain From Derivative Instruments And Related Transactions Net Of Taxes UnrealizedLossGainFromDerivativeInstrumentsAndRelatedTransactionsNetOfTaxes	39254000	USD
CY2010	njr	Unrealized Loss Gain From Derivative Instruments And Related Transactions Net Of Taxes UnrealizedLossGainFromDerivativeInstrumentsAndRelatedTransactionsNetOfTaxes	-16825000	USD
CY2011	dei	Amendment Flag AmendmentFlag	false
CY2011	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--09-30
CY2011	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2011	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2011
CY2011	dei	Document Type DocumentType	10-K
CY2011	dei	Entity Central Index Key EntityCentralIndexKey	0000356309
CY2011	dei	Document Period End Date DocumentPeriodEndDate	2011-09-30
CY2011	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2011	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2011Q1	dei	Entity Public Float EntityPublicFloat	1753066818	USD
CY2011	dei	Entity Registrant Name EntityRegistrantName	NEW JERSEY RESOURCES CORP
CY2011	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2011	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes

Files In Submission

Name	View Source	Status
0000356309-11-000033-index-headers.html	Edgar Link	pending
0000356309-11-000033-index.html	Edgar Link	pending
0000356309-11-000033.txt	Edgar Link	pending
0000356309-11-000033-xbrl.zip	Edgar Link	pending
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FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xls	Edgar Link	pending
frmvolume.jpg	Edgar Link	pending
njr-20110930.xml	Edgar Link	completed
njr-20110930.xsd	Edgar Link	pending
njr-20110930_cal.xml	Edgar Link	unprocessable
njr-20110930_def.xml	Edgar Link	unprocessable
njr-20110930_lab.xml	Edgar Link	unprocessable
njr-20110930_pre.xml	Edgar Link	unprocessable
njr10ksep2011.htm	Edgar Link	pending
njrex311sep2011.htm	Edgar Link	pending
njrex312sep2011.htm	Edgar Link	pending
njrex321sep2011.htm	Edgar Link	pending
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$NJR
NEW JERSEY RESOURCES CORP Stock $njr

2010 Q3 Form 10-K Financial Statement

#000035630911000033 Filed on November 23, 2011

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$NJR NEW JERSEY RESOURCES CORP Stock $njr

2010 Q3 Form 10-K Financial Statement

#000035630911000033 Filed on November 23, 2011

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$NJR
NEW JERSEY RESOURCES CORP Stock $njr