2024 Q1 Form 10-K Financial Statement
#000173399824000011 Filed on February 23, 2024
Income Statement
Concept | 2024 Q1 | 2023 Q4 | 2023 |
---|---|---|---|
Revenue | $433.5M | $355.7M | $1.197B |
YoY Change | -6.26% | -5.21% | 15.44% |
Cost Of Revenue | $194.0M | $157.4M | $548.5M |
YoY Change | -13.71% | -14.46% | 16.34% |
Gross Profit | $239.5M | $198.3M | $649.0M |
YoY Change | 0.79% | 3.7% | 14.68% |
Gross Profit Margin | 55.25% | 55.75% | 54.19% |
Selling, General & Admin | |||
YoY Change | |||
% of Gross Profit | |||
Research & Development | |||
YoY Change | |||
% of Gross Profit | |||
Depreciation & Amortization | $33.10M | $32.76M | $125.6M |
YoY Change | 5.19% | 5.2% | 7.6% |
% of Gross Profit | 13.82% | 16.52% | 19.35% |
Operating Expenses | $323.6M | $123.2M | $1.013B |
YoY Change | -7.24% | 11.94% | 16.4% |
Operating Profit | $109.8M | $75.17M | $184.9M |
YoY Change | -3.24% | -7.46% | 10.43% |
Interest Expense | -$20.53M | -$19.89M | -$76.57M |
YoY Change | 12.22% | 16.38% | 43.79% |
% of Operating Profit | -18.69% | -26.46% | -41.4% |
Other Income/Expense, Net | -$1.134M | $4.627M | $17.86M |
YoY Change | -170.61% | 1468.47% | 1384.21% |
Pretax Income | $88.16M | $59.90M | $126.2M |
YoY Change | -8.94% | -7.03% | 9.35% |
Income Tax | $24.34M | $15.26M | $32.36M |
% Of Pretax Income | 27.61% | 25.48% | 25.64% |
Net Earnings | $63.82M | $44.64M | $93.87M |
YoY Change | -10.95% | -6.88% | 8.77% |
Net Earnings / Revenue | 14.72% | 12.55% | 7.84% |
Basic Earnings Per Share | $1.69 | $2.59 | |
Diluted Earnings Per Share | $1.69 | $1.20 | $2.59 |
COMMON SHARES | |||
Basic Shares Outstanding | 37.68M shares | 36.78M shares | 36.21M shares |
Diluted Shares Outstanding | 37.80M shares | 36.27M shares |
Balance Sheet
Concept | 2024 Q1 | 2023 Q4 | 2023 |
---|---|---|---|
SHORT-TERM ASSETS | |||
Cash & Short-Term Investments | $72.38M | $32.92M | $32.92M |
YoY Change | -48.6% | 12.47% | 12.47% |
Cash & Equivalents | $72.38M | $32.92M | $32.92M |
Short-Term Investments | |||
Other Short-Term Assets | $49.90M | $65.28M | $338.1M |
YoY Change | 18.89% | 6.51% | -26.86% |
Inventory | $99.87M | $112.6M | $112.6M |
Prepaid Expenses | |||
Receivables | $124.3M | $117.9M | $117.9M |
Other Receivables | $0.00 | $0.00 | $0.00 |
Total Short-Term Assets | $537.7M | $601.4M | $601.4M |
YoY Change | -6.67% | -19.18% | -19.18% |
LONG-TERM ASSETS | |||
Property, Plant & Equipment | $3.442B | $3.358B | $3.559B |
YoY Change | 9.05% | 7.82% | 7.14% |
Goodwill | $163.0M | $163.3M | |
YoY Change | 8.81% | 9.38% | |
Intangibles | |||
YoY Change | |||
Long-Term Investments | $84.08M | $103.0M | $103.0M |
YoY Change | -10.18% | 348.2% | 7.57% |
Other Assets | $111.1M | $106.2M | $440.1M |
YoY Change | 13.63% | 16.09% | 0.71% |
Total Long-Term Assets | $4.311B | $4.266B | $4.266B |
YoY Change | 7.36% | 6.53% | 6.53% |
TOTAL ASSETS | |||
Total Short-Term Assets | $537.7M | $601.4M | $601.4M |
Total Long-Term Assets | $4.311B | $4.266B | $4.266B |
Total Assets | $4.849B | $4.867B | $4.867B |
YoY Change | 5.6% | 2.5% | 2.5% |
SHORT-TERM LIABILITIES | |||
YoY Change | |||
Accounts Payable | $107.9M | $145.4M | $145.4M |
YoY Change | -2.94% | -19.54% | -19.54% |
Accrued Expenses | $18.41M | $18.17M | $18.17M |
YoY Change | 24.5% | 55.52% | 55.52% |
Deferred Revenue | |||
YoY Change | |||
Short-Term Debt | $94.70M | $89.80M | $89.78M |
YoY Change | 30.62% | -65.22% | -65.23% |
Long-Term Debt Due | $869.0K | $150.9M | $150.9M |
YoY Change | -99.64% | 66.34% | 66.34% |
Total Short-Term Liabilities | $468.3M | $696.9M | $696.9M |
YoY Change | -27.28% | -22.46% | -22.46% |
LONG-TERM LIABILITIES | |||
Long-Term Debt | $1.575B | $1.425B | $1.425B |
YoY Change | 21.64% | 14.38% | 14.39% |
Other Long-Term Liabilities | $120.2M | $119.0M | $1.078B |
YoY Change | 1.9% | -3.57% | 1.54% |
Total Long-Term Liabilities | $1.695B | $1.544B | $2.504B |
YoY Change | 19.99% | 12.76% | 8.47% |
TOTAL LIABILITIES | |||
Total Short-Term Liabilities | $468.3M | $696.9M | $696.9M |
Total Long-Term Liabilities | $1.695B | $1.544B | $2.504B |
Total Liabilities | $2.163B | $2.241B | $3.583B |
YoY Change | 5.18% | -1.19% | 0.29% |
SHAREHOLDERS EQUITY | |||
Retained Earnings | $445.1M | $399.9M | |
YoY Change | 3.36% | 6.23% | |
Common Stock | $905.2M | $891.0M | |
YoY Change | 9.81% | 10.65% | |
Preferred Stock | |||
YoY Change | |||
Treasury Stock (at cost) | |||
YoY Change | |||
Treasury Stock Shares | |||
Shareholders Equity | $1.343B | $1.284B | $1.284B |
YoY Change | |||
Total Liabilities & Shareholders Equity | $4.849B | $4.867B | $4.867B |
YoY Change | 5.6% | 2.5% | 2.5% |
Cashflow Statement
Concept | 2024 Q1 | 2023 Q4 | 2023 |
---|---|---|---|
OPERATING ACTIVITIES | |||
Net Income | $63.82M | $44.64M | $93.87M |
YoY Change | -10.95% | -6.88% | 8.77% |
Depreciation, Depletion And Amortization | $33.10M | $32.76M | $125.6M |
YoY Change | 5.19% | 5.2% | 7.6% |
Cash From Operating Activities | $125.0M | -$21.55M | $279.9M |
YoY Change | -29.3% | 17.85% | 89.57% |
INVESTING ACTIVITIES | |||
Capital Expenditures | $82.22M | $84.60M | $327.3M |
YoY Change | 15.37% | -2.49% | -3.32% |
Acquisitions | $0.00 | $7.533M | |
YoY Change | -100.0% | -92.01% | |
Other Investing Activities | -$729.0K | -$377.0K | -$383.0K |
YoY Change | -156.73% | -99.59% | -122.69% |
Cash From Investing Activities | -$82.49M | -$84.98M | -$335.5M |
YoY Change | 12.97% | -52.38% | -22.96% |
FINANCING ACTIVITIES | |||
Cash Dividend Paid | |||
YoY Change | |||
Common Stock Issuance & Retirement, Net | $66.50M | ||
YoY Change | -68.12% | ||
Debt Paid & Issued, Net | $150.0M | $90.00M | |
YoY Change | |||
Cash From Financing Activities | -$2.917M | -15.33M | $64.21M |
YoY Change | -126.07% | -113.05% | -78.71% |
NET CHANGE | |||
Cash From Operating Activities | $125.0M | -21.55M | $279.9M |
Cash From Investing Activities | -$82.49M | -84.98M | -$335.5M |
Cash From Financing Activities | -$2.917M | -15.33M | $64.21M |
Net Change In Cash | $39.63M | -121.9M | $8.660M |
YoY Change | -65.54% | 53.65% | -37.45% |
FREE CASH FLOW | |||
Cash From Operating Activities | $125.0M | -$21.55M | $279.9M |
Capital Expenditures | $82.22M | $84.60M | $327.3M |
Free Cash Flow | $42.82M | -$106.2M | -$47.40M |
YoY Change | -59.45% | 1.05% | -75.18% |
Facts In Submission
Frame | Concept Type | Concept / XBRL Key | Value | Unit |
---|---|---|---|---|
CY2023Q4 | us-gaap |
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1
RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1
|
P1Y | |
CY2023Q4 | us-gaap |
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1
RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1
|
P1Y | |
CY2023Q4 | us-gaap |
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1
RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1
|
P1Y | |
CY2023Q4 | us-gaap |
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1
RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1
|
P1Y | |
CY2023Q4 | us-gaap |
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1
RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1
|
P0Y | |
CY2022 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
2.54 | |
CY2021 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
2.56 | |
CY2022Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
1175441000 | usd |
CY2023 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
-383000 | usd |
CY2023 | us-gaap |
Revenues
Revenues
|
1197475000 | usd |
CY2022 | us-gaap |
Revenue From Contract With Customer Including Assessed Tax
RevenueFromContractWithCustomerIncludingAssessedTax
|
1039765000 | usd |
CY2022 | us-gaap |
Revenues
Revenues
|
1037353000 | usd |
CY2021 | us-gaap |
Revenue From Contract With Customer Including Assessed Tax
RevenueFromContractWithCustomerIncludingAssessedTax
|
828155000 | usd |
CY2021 | us-gaap |
Revenues
Revenues
|
860400000 | usd |
CY2023Q4 | us-gaap |
Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
|
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CY2023Q4 | us-gaap |
Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
|
19000000 | usd |
CY2023Q4 | us-gaap |
Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
|
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CY2023Q4 | us-gaap |
Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
|
7400000 | usd |
CY2023Q4 | us-gaap |
Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
|
16900000 | usd |
CY2023 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
36213000 | shares |
CY2023 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
36265000 | shares |
CY2022 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
33984000 | shares |
CY2023 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
2.59 | |
CY2022 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
2.54 | |
CY2021 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
2.56 | |
CY2023 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
2.59 | |
CY2022Q4 | us-gaap |
Regulatory Liability Current
RegulatoryLiabilityCurrent
|
248582000 | usd |
CY2023Q4 | us-gaap |
Restricted Cash And Cash Equivalents Current Asset Statement Of Financial Position Extensible List
RestrictedCashAndCashEquivalentsCurrentAssetStatementOfFinancialPositionExtensibleList
|
http://fasb.org/us-gaap/2023#OtherAssetsCurrent | |
CY2022Q4 | us-gaap |
Restricted Cash And Cash Equivalents Current Asset Statement Of Financial Position Extensible List
RestrictedCashAndCashEquivalentsCurrentAssetStatementOfFinancialPositionExtensibleList
|
http://fasb.org/us-gaap/2023#OtherAssetsCurrent | |
CY2023 | us-gaap |
Operating Lease Income Comprehensive Income Extensible List
OperatingLeaseIncomeComprehensiveIncomeExtensibleList
|
http://fasb.org/us-gaap/2023#Revenues | |
CY2022 | us-gaap |
Operating Lease Income Comprehensive Income Extensible List
OperatingLeaseIncomeComprehensiveIncomeExtensibleList
|
http://fasb.org/us-gaap/2023#Revenues | |
CY2021 | us-gaap |
Operating Lease Income Comprehensive Income Extensible List
OperatingLeaseIncomeComprehensiveIncomeExtensibleList
|
http://fasb.org/us-gaap/2023#Revenues | |
CY2023 | us-gaap |
Operating Costs And Expenses
OperatingCostsAndExpenses
|
273766000 | usd |
CY2022 | us-gaap |
Operating Costs And Expenses
OperatingCostsAndExpenses
|
224667000 | usd |
CY2021 | us-gaap |
Operating Costs And Expenses
OperatingCostsAndExpenses
|
204227000 | usd |
CY2023 | us-gaap |
Environmental Remediation Expense
EnvironmentalRemediationExpense
|
12899000 | usd |
CY2022 | us-gaap |
Environmental Remediation Expense
EnvironmentalRemediationExpense
|
12389000 | usd |
CY2023 | us-gaap |
Sales Type Lease Income Comprehensive Income Extensible List
SalesTypeLeaseIncomeComprehensiveIncomeExtensibleList
|
http://fasb.org/us-gaap/2023#Revenues | |
CY2022 | us-gaap |
Sales Type Lease Income Comprehensive Income Extensible List
SalesTypeLeaseIncomeComprehensiveIncomeExtensibleList
|
http://fasb.org/us-gaap/2023#Revenues | |
CY2021 | us-gaap |
Sales Type Lease Income Comprehensive Income Extensible List
SalesTypeLeaseIncomeComprehensiveIncomeExtensibleList
|
http://fasb.org/us-gaap/2023#Revenues | |
CY2023Q4 | us-gaap |
Finance Lease Right Of Use Asset Statement Of Financial Position Extensible List
FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList
|
http://fasb.org/us-gaap/2023#PropertyPlantAndEquipmentNet | |
CY2022Q4 | us-gaap |
Finance Lease Right Of Use Asset Statement Of Financial Position Extensible List
FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList
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http://fasb.org/us-gaap/2023#PropertyPlantAndEquipmentNet | |
CY2023Q4 | nwn |
Return On Invested Capital Threshold Performance Shares
ReturnOnInvestedCapitalThresholdPerformanceShares
|
P3Y | |
CY2023Q4 | nwn |
Return On Invested Capital Threshold Performance Shares
ReturnOnInvestedCapitalThresholdPerformanceShares
|
P3Y | |
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Derivative Gain Statement Of Income Or Comprehensive Income Extensible Enumeration
DerivativeGainStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration
|
http://fasb.org/us-gaap/2023#Revenues | |
CY2022 | us-gaap |
Derivative Gain Statement Of Income Or Comprehensive Income Extensible Enumeration
DerivativeGainStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration
|
http://fasb.org/us-gaap/2023#Revenues | |
CY2023Q4 | us-gaap |
Other Receivable After Allowance For Credit Loss Related Party Type Extensible Enumeration
OtherReceivableAfterAllowanceForCreditLossRelatedPartyTypeExtensibleEnumeration
|
http://fasb.org/srt/2023#AffiliatedEntityMember | |
CY2023Q4 | us-gaap |
Accounts Payable Related Party Type Extensible Enumeration
AccountsPayableRelatedPartyTypeExtensibleEnumeration
|
http://fasb.org/srt/2023#AffiliatedEntityMember | |
CY2023 | dei |
Document Period End Date
DocumentPeriodEndDate
|
2023-12-31 | |
CY2023 | dei |
Current Fiscal Year End Date
CurrentFiscalYearEndDate
|
--12-31 | |
CY2023 | dei |
Auditor Firm
AuditorFirmId
|
238 | |
CY2023 | dei |
Auditor Name
AuditorName
|
PricewaterhouseCoopers LLP | |
CY2023 | dei |
Auditor Location
AuditorLocation
|
Portland, Oregon | |
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Revenues
Revenues
|
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CY2022 | us-gaap |
Revenues
Revenues
|
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CY2021 | us-gaap |
Revenues
Revenues
|
860400000 | usd |
CY2023 | us-gaap |
Utilities Operating Expense Gas And Petroleum Purchased
UtilitiesOperatingExpenseGasAndPetroleumPurchased
|
499837000 | usd |
CY2022 | us-gaap |
Utilities Operating Expense Gas And Petroleum Purchased
UtilitiesOperatingExpenseGasAndPetroleumPurchased
|
429635000 | usd |
CY2021 | us-gaap |
Utilities Operating Expense Gas And Petroleum Purchased
UtilitiesOperatingExpenseGasAndPetroleumPurchased
|
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CY2021 | us-gaap |
Environmental Remediation Expense
EnvironmentalRemediationExpense
|
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Taxes Excluding Income And Excise Taxes
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|
46248000 | usd |
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Taxes Excluding Income And Excise Taxes
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|
41031000 | usd |
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Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
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Excise Taxes
ExciseTaxes
|
48671000 | usd |
CY2022 | nwn |
Excise Taxes
ExciseTaxes
|
41826000 | usd |
CY2021 | nwn |
Excise Taxes
ExciseTaxes
|
34740000 | usd |
CY2023 | us-gaap |
Depreciation And Amortization
DepreciationAndAmortization
|
125581000 | usd |
CY2022 | us-gaap |
Depreciation And Amortization
DepreciationAndAmortization
|
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CY2021 | us-gaap |
Depreciation And Amortization
DepreciationAndAmortization
|
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CY2023 | us-gaap |
Other Cost And Expense Operating
OtherCostAndExpenseOperating
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CY2022 | us-gaap |
Other Cost And Expense Operating
OtherCostAndExpenseOperating
|
3621000 | usd |
CY2021 | us-gaap |
Other Cost And Expense Operating
OtherCostAndExpenseOperating
|
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CY2023 | us-gaap |
Operating Expenses
OperatingExpenses
|
1012534000 | usd |
CY2022 | us-gaap |
Operating Expenses
OperatingExpenses
|
869876000 | usd |
CY2021 | us-gaap |
Operating Expenses
OperatingExpenses
|
697283000 | usd |
CY2023 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
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CY2022 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
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CY2021 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
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CY2023 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
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CY2022 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
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CY2021 | us-gaap |
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OtherNonoperatingIncomeExpense
|
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InterestIncomeExpenseNonoperatingNet
|
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CY2022 | us-gaap |
Interest Income Expense Nonoperating Net
InterestIncomeExpenseNonoperatingNet
|
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CY2021 | us-gaap |
Interest Income Expense Nonoperating Net
InterestIncomeExpenseNonoperatingNet
|
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CY2023 | us-gaap |
Income Loss Attributable To Parent
IncomeLossAttributableToParent
|
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CY2022 | us-gaap |
Income Loss Attributable To Parent
IncomeLossAttributableToParent
|
115433000 | usd |
CY2021 | us-gaap |
Income Loss Attributable To Parent
IncomeLossAttributableToParent
|
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CY2022 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
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CY2021 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
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CY2021 | us-gaap |
Net Income Loss
NetIncomeLoss
|
78666000 | usd |
CY2022 | us-gaap |
Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax
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|
-1511 | usd |
CY2021 | us-gaap |
Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax
OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax
|
-219 | usd |
CY2021 | us-gaap |
Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax
OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax
|
593000 | usd |
CY2023 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax
|
-148 | usd |
CY2022 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax
|
-286 | usd |
CY2021 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax
|
-320 | usd |
CY2023 | nwn |
Unrealized Gain On Derivative Tax
UnrealizedGainOnDerivativeTax
|
-21 | usd |
CY2022 | nwn |
Unrealized Gain On Derivative Tax
UnrealizedGainOnDerivativeTax
|
-47 | usd |
CY2023 | us-gaap |
Derivative Gain Loss On Derivative Net
DerivativeGainLossOnDerivativeNet
|
59000 | usd |
CY2022 | us-gaap |
Derivative Gain Loss On Derivative Net
DerivativeGainLossOnDerivativeNet
|
129000 | usd |
CY2021 | us-gaap |
Derivative Gain Loss On Derivative Net
DerivativeGainLossOnDerivativeNet
|
0 | usd |
CY2023 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
93104000 | usd |
CY2022 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
91422000 | usd |
CY2021 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
80164000 | usd |
CY2022 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
33934000 | shares |
CY2021 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
30702000 | shares |
CY2021 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
30752000 | shares |
CY2023Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
32920000 | usd |
CY2022Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
29270000 | usd |
CY2023Q4 | us-gaap |
Accounts Receivable Gross Current
AccountsReceivableGrossCurrent
|
121341000 | usd |
CY2022Q4 | us-gaap |
Accounts Receivable Gross Current
AccountsReceivableGrossCurrent
|
168906000 | usd |
CY2023Q4 | us-gaap |
Unbilled Receivables Current
UnbilledReceivablesCurrent
|
83138000 | usd |
CY2022Q4 | us-gaap |
Unbilled Receivables Current
UnbilledReceivablesCurrent
|
89048000 | usd |
CY2023Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
|
3455000 | usd |
CY2022Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
|
3296000 | usd |
CY2023Q4 | us-gaap |
Regulatory Assets Current
RegulatoryAssetsCurrent
|
178270000 | usd |
CY2022Q4 | us-gaap |
Regulatory Assets Current
RegulatoryAssetsCurrent
|
117491000 | usd |
CY2023Q4 | us-gaap |
Derivative Assets Current
DerivativeAssetsCurrent
|
11380000 | usd |
CY2022Q4 | us-gaap |
Derivative Assets Current
DerivativeAssetsCurrent
|
194412000 | usd |
CY2023Q4 | us-gaap |
Public Utilities Inventory
PublicUtilitiesInventory
|
112571000 | usd |
CY2022Q4 | us-gaap |
Public Utilities Inventory
PublicUtilitiesInventory
|
87096000 | usd |
CY2023Q4 | us-gaap |
Other Assets Current
OtherAssetsCurrent
|
65275000 | usd |
CY2022Q4 | us-gaap |
Other Assets Current
OtherAssetsCurrent
|
61286000 | usd |
CY2023Q4 | us-gaap |
Assets Current
AssetsCurrent
|
601440000 | usd |
CY2022Q4 | us-gaap |
Assets Current
AssetsCurrent
|
744213000 | usd |
CY2023Q4 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
4556609000 | usd |
CY2022Q4 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
4261566000 | usd |
CY2023Q4 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
1198555000 | usd |
CY2022Q4 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
1147166000 | usd |
CY2023Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
3358054000 | usd |
CY2022Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
3114400000 | usd |
CY2023Q4 | us-gaap |
Regulatory Assets Noncurrent
RegulatoryAssetsNoncurrent
|
333443000 | usd |
CY2022Q4 | us-gaap |
Regulatory Assets Noncurrent
RegulatoryAssetsNoncurrent
|
340432000 | usd |
CY2023Q4 | us-gaap |
Derivative Assets Noncurrent
DerivativeAssetsNoncurrent
|
431000 | usd |
CY2022Q4 | us-gaap |
Derivative Assets Noncurrent
DerivativeAssetsNoncurrent
|
5045000 | usd |
CY2023Q4 | us-gaap |
Other Long Term Investments
OtherLongTermInvestments
|
102951000 | usd |
CY2022Q4 | us-gaap |
Other Long Term Investments
OtherLongTermInvestments
|
95704000 | usd |
CY2023Q4 | us-gaap |
Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
|
71308000 | usd |
CY2022Q4 | us-gaap |
Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
|
73429000 | usd |
CY2023Q4 | us-gaap |
Net Investment In Lease Noncurrent
NetInvestmentInLeaseNoncurrent
|
129882000 | usd |
CY2022Q4 | us-gaap |
Net Investment In Lease Noncurrent
NetInvestmentInLeaseNoncurrent
|
134302000 | usd |
CY2023Q4 | us-gaap |
Goodwill
Goodwill
|
163344000 | usd |
CY2022Q4 | us-gaap |
Goodwill
Goodwill
|
149283000 | usd |
CY2023Q4 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
106239000 | usd |
CY2022Q4 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
91518000 | usd |
CY2023Q4 | us-gaap |
Assets Noncurrent
AssetsNoncurrent
|
4265652000 | usd |
CY2022Q4 | us-gaap |
Assets Noncurrent
AssetsNoncurrent
|
4004113000 | usd |
CY2023Q4 | us-gaap |
Assets
Assets
|
4867092000 | usd |
CY2022Q4 | us-gaap |
Assets
Assets
|
4748326000 | usd |
CY2023Q4 | us-gaap |
Short Term Borrowings
ShortTermBorrowings
|
89780000 | usd |
CY2022Q4 | us-gaap |
Short Term Borrowings
ShortTermBorrowings
|
258200000 | usd |
CY2023Q4 | us-gaap |
Long Term Debt Current
LongTermDebtCurrent
|
150865000 | usd |
CY2022Q4 | us-gaap |
Long Term Debt Current
LongTermDebtCurrent
|
90697000 | usd |
CY2023Q4 | us-gaap |
Accounts Payable Current
AccountsPayableCurrent
|
145361000 | usd |
CY2022Q4 | us-gaap |
Accounts Payable Current
AccountsPayableCurrent
|
180667000 | usd |
CY2023Q4 | us-gaap |
Accrued Income Taxes Current
AccruedIncomeTaxesCurrent
|
15454000 | usd |
CY2022Q4 | us-gaap |
Accrued Income Taxes Current
AccruedIncomeTaxesCurrent
|
15625000 | usd |
CY2023Q4 | us-gaap |
Interest Payable Current
InterestPayableCurrent
|
15836000 | usd |
CY2022Q4 | us-gaap |
Interest Payable Current
InterestPayableCurrent
|
10169000 | usd |
CY2023Q4 | us-gaap |
Regulatory Liability Current
RegulatoryLiabilityCurrent
|
84962000 | usd |
CY2022Q4 | us-gaap |
Regulatory Liability Current
RegulatoryLiabilityCurrent
|
248582000 | usd |
CY2023Q4 | us-gaap |
Derivative Liabilities Current
DerivativeLiabilitiesCurrent
|
98661000 | usd |
CY2022Q4 | us-gaap |
Derivative Liabilities Current
DerivativeLiabilitiesCurrent
|
28728000 | usd |
CY2023Q4 | us-gaap |
Operating Lease Liability Current
OperatingLeaseLiabilityCurrent
|
2333000 | usd |
CY2022Q4 | us-gaap |
Operating Lease Liability Current
OperatingLeaseLiabilityCurrent
|
1514000 | usd |
CY2023Q4 | us-gaap |
Other Liabilities Current
OtherLiabilitiesCurrent
|
93626000 | usd |
CY2022Q4 | us-gaap |
Other Liabilities Current
OtherLiabilitiesCurrent
|
64552000 | usd |
CY2023Q4 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
696878000 | usd |
CY2022Q4 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
898734000 | usd |
CY2023Q4 | us-gaap |
Long Term Debt Noncurrent
LongTermDebtNoncurrent
|
1425435000 | usd |
CY2022Q4 | us-gaap |
Long Term Debt Noncurrent
LongTermDebtNoncurrent
|
1246167000 | usd |
CY2023Q4 | us-gaap |
Deferred Income Tax Liabilities Net
DeferredIncomeTaxLiabilitiesNet
|
382673000 | usd |
CY2022Q4 | us-gaap |
Deferred Income Tax Liabilities Net
DeferredIncomeTaxLiabilitiesNet
|
366022000 | usd |
CY2023Q4 | us-gaap |
Regulatory Liability Noncurrent
RegulatoryLiabilityNoncurrent
|
695896000 | usd |
CY2022Q4 | us-gaap |
Regulatory Liability Noncurrent
RegulatoryLiabilityNoncurrent
|
689578000 | usd |
CY2023Q4 | us-gaap |
Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
|
158116000 | usd |
CY2022Q4 | us-gaap |
Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
|
149143000 | usd |
CY2023Q4 | us-gaap |
Derivative Liabilities Noncurrent
DerivativeLiabilitiesNoncurrent
|
28055000 | usd |
CY2022Q4 | us-gaap |
Derivative Liabilities Noncurrent
DerivativeLiabilitiesNoncurrent
|
20838000 | usd |
CY2023Q4 | us-gaap |
Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
|
77167000 | usd |
CY2022Q4 | us-gaap |
Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
|
78965000 | usd |
CY2023Q4 | us-gaap |
Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
|
119034000 | usd |
CY2022Q4 | us-gaap |
Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
|
123438000 | usd |
CY2023Q4 | us-gaap |
Deferred Credits And Other Liabilities Noncurrent
DeferredCreditsAndOtherLiabilitiesNoncurrent
|
1460941000 | usd |
CY2022Q4 | us-gaap |
Deferred Credits And Other Liabilities Noncurrent
DeferredCreditsAndOtherLiabilitiesNoncurrent
|
1427984000 | usd |
CY2023Q4 | us-gaap |
Commitments And Contingencies
CommitmentsAndContingencies
|
usd | |
CY2022Q4 | us-gaap |
Commitments And Contingencies
CommitmentsAndContingencies
|
usd | |
CY2022Q4 | us-gaap |
Common Stock No Par Value
CommonStockNoParValue
|
0 | |
CY2023Q4 | us-gaap |
Common Stock Value
CommonStockValue
|
890976000 | usd |
CY2022Q4 | us-gaap |
Common Stock Value
CommonStockValue
|
805253000 | usd |
CY2023Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
399911000 | usd |
CY2022Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
376473000 | usd |
CY2023Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
-7049000 | usd |
CY2022Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
-6285000 | usd |
CY2023Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
1283838000 | usd |
CY2022Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
1175441000 | usd |
CY2023Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
4867092000 | usd |
CY2022Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
4748326000 | usd |
CY2020Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
888733000 | usd |
CY2021 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
80164000 | usd |
CY2021 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
1.92 | |
CY2021 | us-gaap |
Dividends Common Stock Cash
DividendsCommonStockCash
|
59410000 | usd |
CY2021 | us-gaap |
Stock Granted During Period Value Sharebased Compensation
StockGrantedDuringPeriodValueSharebasedCompensation
|
3615000 | usd |
CY2021 | us-gaap |
Stock Issued During Period Value Share Based Compensation
StockIssuedDuringPeriodValueShareBasedCompensation
|
4543000 | usd |
CY2021 | us-gaap |
Stock Issued During Period Value New Issues
StockIssuedDuringPeriodValueNewIssues
|
17501000 | usd |
CY2021Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
935146000 | usd |
CY2022 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
91422000 | usd |
CY2022 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
1.93 | |
CY2022 | us-gaap |
Dividends Common Stock Cash
DividendsCommonStockCash
|
65609000 | usd |
CY2022 | us-gaap |
Stock Granted During Period Value Sharebased Compensation
StockGrantedDuringPeriodValueSharebasedCompensation
|
3228000 | usd |
CY2022 | us-gaap |
Stock Issued During Period Value Share Based Compensation
StockIssuedDuringPeriodValueShareBasedCompensation
|
2978000 | usd |
CY2022 | us-gaap |
Stock Issued During Period Value New Issues
StockIssuedDuringPeriodValueNewIssues
|
208276000 | usd |
CY2023 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
93104000 | usd |
CY2023 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
1.94 | |
CY2023 | us-gaap |
Dividends Common Stock Cash
DividendsCommonStockCash
|
70430000 | usd |
CY2023 | us-gaap |
Stock Issued During Period Value Acquisitions
StockIssuedDuringPeriodValueAcquisitions
|
12884000 | usd |
CY2023 | us-gaap |
Stock Granted During Period Value Sharebased Compensation
StockGrantedDuringPeriodValueSharebasedCompensation
|
3598000 | usd |
CY2023 | us-gaap |
Stock Issued During Period Value Share Based Compensation
StockIssuedDuringPeriodValueShareBasedCompensation
|
2328000 | usd |
CY2023 | us-gaap |
Stock Issued During Period Value New Issues
StockIssuedDuringPeriodValueNewIssues
|
66913000 | usd |
CY2023Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
1283838000 | usd |
CY2023 | us-gaap |
Net Income Loss
NetIncomeLoss
|
93868000 | usd |
CY2022 | us-gaap |
Net Income Loss
NetIncomeLoss
|
86303000 | usd |
CY2021 | us-gaap |
Net Income Loss
NetIncomeLoss
|
78666000 | usd |
CY2023 | us-gaap |
Depreciation And Amortization
DepreciationAndAmortization
|
125581000 | usd |
CY2022 | us-gaap |
Depreciation And Amortization
DepreciationAndAmortization
|
116707000 | usd |
CY2021 | us-gaap |
Depreciation And Amortization
DepreciationAndAmortization
|
113534000 | usd |
CY2023 | us-gaap |
Amortization Of Regulatory Asset
AmortizationOfRegulatoryAsset
|
3217000 | usd |
CY2022 | us-gaap |
Amortization Of Regulatory Asset
AmortizationOfRegulatoryAsset
|
5589000 | usd |
CY2021 | us-gaap |
Amortization Of Regulatory Asset
AmortizationOfRegulatoryAsset
|
13897000 | usd |
CY2023 | us-gaap |
Deferred Income Taxes And Tax Credits
DeferredIncomeTaxesAndTaxCredits
|
8966000 | usd |
CY2022 | us-gaap |
Deferred Income Taxes And Tax Credits
DeferredIncomeTaxesAndTaxCredits
|
17410000 | usd |
CY2021 | us-gaap |
Deferred Income Taxes And Tax Credits
DeferredIncomeTaxesAndTaxCredits
|
14617000 | usd |
CY2023 | us-gaap |
Pension Expense
PensionExpense
|
-2430000 | usd |
CY2022 | us-gaap |
Pension Expense
PensionExpense
|
5351000 | usd |
CY2021 | us-gaap |
Pension Expense
PensionExpense
|
16556000 | usd |
CY2023 | us-gaap |
Pension Contributions
PensionContributions
|
0 | usd |
CY2022 | us-gaap |
Pension Contributions
PensionContributions
|
0 | usd |
CY2021 | us-gaap |
Pension Contributions
PensionContributions
|
9590000 | usd |
CY2023 | us-gaap |
Other Increase Decrease In Environmental Liabilities
OtherIncreaseDecreaseInEnvironmentalLiabilities
|
-26052000 | usd |
CY2022 | us-gaap |
Other Increase Decrease In Environmental Liabilities
OtherIncreaseDecreaseInEnvironmentalLiabilities
|
-18160000 | usd |
CY2021 | us-gaap |
Other Increase Decrease In Environmental Liabilities
OtherIncreaseDecreaseInEnvironmentalLiabilities
|
-18187000 | usd |
CY2023 | us-gaap |
Environmental Remediation Expense
EnvironmentalRemediationExpense
|
12899000 | usd |
CY2022 | us-gaap |
Environmental Remediation Expense
EnvironmentalRemediationExpense
|
12389000 | usd |
CY2021 | us-gaap |
Environmental Remediation Expense
EnvironmentalRemediationExpense
|
9938000 | usd |
CY2023 | nwn |
Asset Optimization Revenue Sharing Bill Credits
AssetOptimizationRevenueSharingBillCredits
|
-10471000 | usd |
CY2022 | nwn |
Asset Optimization Revenue Sharing Bill Credits
AssetOptimizationRevenueSharingBillCredits
|
-41102000 | usd |
CY2021 | nwn |
Asset Optimization Revenue Sharing Bill Credits
AssetOptimizationRevenueSharingBillCredits
|
-9053000 | usd |
CY2023 | us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
-22972000 | usd |
CY2022 | us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
-21558000 | usd |
CY2021 | us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
-20622000 | usd |
CY2023 | us-gaap |
Increase Decrease In Accounts And Other Receivables
IncreaseDecreaseInAccountsAndOtherReceivables
|
-50977000 | usd |
CY2022 | us-gaap |
Increase Decrease In Accounts And Other Receivables
IncreaseDecreaseInAccountsAndOtherReceivables
|
76454000 | usd |
CY2021 | us-gaap |
Increase Decrease In Accounts And Other Receivables
IncreaseDecreaseInAccountsAndOtherReceivables
|
44128000 | usd |
CY2023 | us-gaap |
Increase Decrease In Inventories
IncreaseDecreaseInInventories
|
24105000 | usd |
CY2022 | us-gaap |
Increase Decrease In Inventories
IncreaseDecreaseInInventories
|
29269000 | usd |
CY2021 | us-gaap |
Increase Decrease In Inventories
IncreaseDecreaseInInventories
|
14571000 | usd |
CY2023 | us-gaap |
Increase Decrease In Accrued Taxes Payable
IncreaseDecreaseInAccruedTaxesPayable
|
-1246000 | usd |
CY2022 | us-gaap |
Increase Decrease In Accrued Taxes Payable
IncreaseDecreaseInAccruedTaxesPayable
|
6908000 | usd |
CY2021 | us-gaap |
Increase Decrease In Accrued Taxes Payable
IncreaseDecreaseInAccruedTaxesPayable
|
3292000 | usd |
CY2023 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
-39958000 | usd |
CY2022 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
24508000 | usd |
CY2021 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
12118000 | usd |
CY2023 | us-gaap |
Increase Decrease In Deferred Gas Cost
IncreaseDecreaseInDeferredGasCost
|
-52371000 | usd |
CY2022 | us-gaap |
Increase Decrease In Deferred Gas Cost
IncreaseDecreaseInDeferredGasCost
|
-12334000 | usd |
CY2021 | us-gaap |
Increase Decrease In Deferred Gas Cost
IncreaseDecreaseInDeferredGasCost
|
40541000 | usd |
CY2023 | us-gaap |
Increase Decrease In Regulatory Assets And Liabilities
IncreaseDecreaseInRegulatoryAssetsAndLiabilities
|
-22637000 | usd |
CY2022 | us-gaap |
Increase Decrease In Regulatory Assets And Liabilities
IncreaseDecreaseInRegulatoryAssetsAndLiabilities
|
-28937000 | usd |
CY2021 | us-gaap |
Increase Decrease In Regulatory Assets And Liabilities
IncreaseDecreaseInRegulatoryAssetsAndLiabilities
|
-44458000 | usd |
CY2023 | nwn |
Change In Decoupling Regulatory Deferral
ChangeInDecouplingRegulatoryDeferral
|
11415000 | usd |
CY2022 | nwn |
Change In Decoupling Regulatory Deferral
ChangeInDecouplingRegulatoryDeferral
|
-10922000 | usd |
CY2021 | nwn |
Change In Decoupling Regulatory Deferral
ChangeInDecouplingRegulatoryDeferral
|
5206000 | usd |
CY2023 | nwn |
Increase Decrease In Cloud Based Software Operating Assets
IncreaseDecreaseInCloudBasedSoftwareOperatingAssets
|
16307000 | usd |
CY2022 | nwn |
Increase Decrease In Cloud Based Software Operating Assets
IncreaseDecreaseInCloudBasedSoftwareOperatingAssets
|
23908000 | usd |
CY2021 | nwn |
Increase Decrease In Cloud Based Software Operating Assets
IncreaseDecreaseInCloudBasedSoftwareOperatingAssets
|
7407000 | usd |
CY2023 | us-gaap |
Increase Decrease In Other Operating Capital Net
IncreaseDecreaseInOtherOperatingCapitalNet
|
-18445000 | usd |
CY2022 | us-gaap |
Increase Decrease In Other Operating Capital Net
IncreaseDecreaseInOtherOperatingCapitalNet
|
12351000 | usd |
CY2021 | us-gaap |
Increase Decrease In Other Operating Capital Net
IncreaseDecreaseInOtherOperatingCapitalNet
|
18662000 | usd |
CY2023 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
279949000 | usd |
CY2022 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
147672000 | usd |
CY2021 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
160353000 | usd |
CY2023 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
327347000 | usd |
CY2022 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
338602000 | usd |
CY2021 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
293892000 | usd |
CY2023 | us-gaap |
Payments To Acquire Businesses Net Of Cash Acquired
PaymentsToAcquireBusinessesNetOfCashAcquired
|
7533000 | usd |
CY2022 | us-gaap |
Payments To Acquire Businesses Net Of Cash Acquired
PaymentsToAcquireBusinessesNetOfCashAcquired
|
94279000 | usd |
CY2021 | us-gaap |
Payments To Acquire Businesses Net Of Cash Acquired
PaymentsToAcquireBusinessesNetOfCashAcquired
|
1289000 | usd |
CY2023 | us-gaap |
Payments To Acquire Equity Method Investments
PaymentsToAcquireEquityMethodInvestments
|
1000000 | usd |
CY2022 | us-gaap |
Payments To Acquire Equity Method Investments
PaymentsToAcquireEquityMethodInvestments
|
1000000 | usd |
CY2021 | us-gaap |
Payments To Acquire Equity Method Investments
PaymentsToAcquireEquityMethodInvestments
|
14450000 | usd |
CY2023 | us-gaap |
Proceeds From Sale Of Equity Method Investments
ProceedsFromSaleOfEquityMethodInvestments
|
0 | usd |
CY2022 | us-gaap |
Proceeds From Sale Of Equity Method Investments
ProceedsFromSaleOfEquityMethodInvestments
|
0 | usd |
CY2021 | us-gaap |
Proceeds From Sale Of Equity Method Investments
ProceedsFromSaleOfEquityMethodInvestments
|
7000000 | usd |
CY2022 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
1579000 | usd |
CY2021 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
-2508000 | usd |
CY2023 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-335497000 | usd |
CY2022 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-435460000 | usd |
CY2021 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-300123000 | usd |
CY2023 | us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
66495000 | usd |
CY2022 | us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
208561000 | usd |
CY2021 | us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
17501000 | usd |
CY2023 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
330000000 | usd |
CY2022 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
290000000 | usd |
CY2021 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
185000000 | usd |
CY2023 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
90000000 | usd |
CY2022 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
0 | usd |
CY2021 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
95000000 | usd |
CY2023 | us-gaap |
Proceeds From Debt Maturing In More Than Three Months
ProceedsFromDebtMaturingInMoreThanThreeMonths
|
0 | usd |
CY2022 | us-gaap |
Proceeds From Debt Maturing In More Than Three Months
ProceedsFromDebtMaturingInMoreThanThreeMonths
|
0 | usd |
CY2021 | us-gaap |
Proceeds From Debt Maturing In More Than Three Months
ProceedsFromDebtMaturingInMoreThanThreeMonths
|
100000000 | usd |
CY2023 | us-gaap |
Repayments Of Debt Maturing In More Than Three Months
RepaymentsOfDebtMaturingInMoreThanThreeMonths
|
0 | usd |
CY2022 | us-gaap |
Repayments Of Debt Maturing In More Than Three Months
RepaymentsOfDebtMaturingInMoreThanThreeMonths
|
0 | usd |
CY2021 | us-gaap |
Repayments Of Debt Maturing In More Than Three Months
RepaymentsOfDebtMaturingInMoreThanThreeMonths
|
100000000 | usd |
CY2023 | nwn |
Repayments Of Commercial Paper Maturities Greater Than Three Months
RepaymentsOfCommercialPaperMaturitiesGreaterThanThreeMonths
|
0 | usd |
CY2022 | nwn |
Repayments Of Commercial Paper Maturities Greater Than Three Months
RepaymentsOfCommercialPaperMaturitiesGreaterThanThreeMonths
|
0 | usd |
CY2021 | nwn |
Repayments Of Commercial Paper Maturities Greater Than Three Months
RepaymentsOfCommercialPaperMaturitiesGreaterThanThreeMonths
|
-195025000 | usd |
CY2022 | us-gaap |
Proceeds From Repayments Of Short Term Debt
ProceedsFromRepaymentsOfShortTermDebt
|
-131300000 | usd |
CY2021 | us-gaap |
Proceeds From Repayments Of Short Term Debt
ProceedsFromRepaymentsOfShortTermDebt
|
280000000 | usd |
CY2023 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
67340000 | usd |
CY2022 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
62771000 | usd |
CY2021 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
55919000 | usd |
CY2023 | us-gaap |
Payments Of Financing Costs
PaymentsOfFinancingCosts
|
2200000 | usd |
CY2022 | us-gaap |
Payments Of Financing Costs
PaymentsOfFinancingCosts
|
912000 | usd |
CY2021 | us-gaap |
Payments Of Financing Costs
PaymentsOfFinancingCosts
|
3899000 | usd |
CY2023 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-4207000 | usd |
CY2022 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-1946000 | usd |
CY2021 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-1222000 | usd |
CY2023 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
64208000 | usd |
CY2022 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
301632000 | usd |
CY2021 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
131436000 | usd |
CY2023 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect
|
8660000 | usd |
CY2022 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect
|
13844000 | usd |
CY2021 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect
|
-8334000 | usd |
CY2022Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
40964000 | usd |
CY2021Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
27120000 | usd |
CY2020Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
35454000 | usd |
CY2023Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
49624000 | usd |
CY2022Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
40964000 | usd |
CY2021Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
27120000 | usd |
CY2023 | us-gaap |
Interest Paid Net
InterestPaidNet
|
80197000 | usd |
CY2022 | us-gaap |
Interest Paid Net
InterestPaidNet
|
50823000 | usd |
CY2021 | us-gaap |
Interest Paid Net
InterestPaidNet
|
43719000 | usd |
CY2023 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
24263000 | usd |
CY2022 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
2779000 | usd |
CY2021 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
10555000 | usd |
CY2023 | us-gaap |
Stock Issued During Period Value Acquisitions
StockIssuedDuringPeriodValueAcquisitions
|
12884000 | usd |
CY2022 | us-gaap |
Stock Issued During Period Value Acquisitions
StockIssuedDuringPeriodValueAcquisitions
|
0 | usd |
CY2021 | us-gaap |
Stock Issued During Period Value Acquisitions
StockIssuedDuringPeriodValueAcquisitions
|
0 | usd |
CY2023 | us-gaap |
Noncash Or Part Noncash Acquisition Debt Assumed1
NoncashOrPartNoncashAcquisitionDebtAssumed1
|
3131000 | usd |
CY2022 | us-gaap |
Noncash Or Part Noncash Acquisition Debt Assumed1
NoncashOrPartNoncashAcquisitionDebtAssumed1
|
0 | usd |
CY2021 | us-gaap |
Noncash Or Part Noncash Acquisition Debt Assumed1
NoncashOrPartNoncashAcquisitionDebtAssumed1
|
0 | usd |
CY2023 | us-gaap |
Use Of Estimates
UseOfEstimates
|
<div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9.5pt;font-weight:700;line-height:120%;text-decoration:underline">Use of Estimates</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%"> </span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">The preparation of financial statements in conformity with generally accepted accounting principles in the United States of America (U.S. GAAP) requires management to make estimates and assumptions that affect reported amounts in the consolidated financial statements and accompanying notes. Actual amounts could differ from those estimates, and changes would most likely be reported in future periods. Management believes the estimates and assumptions used are reasonable</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">.</span></div> | |
CY2023Q4 | us-gaap |
Regulatory Assets Noncurrent
RegulatoryAssetsNoncurrent
|
333443000 | usd |
CY2022Q4 | us-gaap |
Regulatory Assets Noncurrent
RegulatoryAssetsNoncurrent
|
340432000 | usd |
CY2023Q4 | us-gaap |
Regulatory Liability Current
RegulatoryLiabilityCurrent
|
84962000 | usd |
CY2023Q4 | us-gaap |
Regulatory Liability Noncurrent
RegulatoryLiabilityNoncurrent
|
695896000 | usd |
CY2022Q4 | us-gaap |
Regulatory Liability Noncurrent
RegulatoryLiabilityNoncurrent
|
689578000 | usd |
CY2023 | nwn |
Weighted Average Depreciation Rates Transmission Distribution
WeightedAverageDepreciationRatesTransmissionDistribution
|
0.025 | |
CY2023 | nwn |
Weighted Average Depreciation Rates Utility Storage
WeightedAverageDepreciationRatesUtilityStorage
|
0.022 | |
CY2023 | nwn |
Weighted Average Depreciation Rates General Plant
WeightedAverageDepreciationRatesGeneralPlant
|
0.067 | |
CY2023 | nwn |
Weighted Average Depreciation Rates Intangible Other
WeightedAverageDepreciationRatesIntangibleOther
|
0.053 | |
CY2023 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Rate
PublicUtilitiesAllowanceForFundsUsedDuringConstructionRate
|
0.075 | |
CY2022 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Rate
PublicUtilitiesAllowanceForFundsUsedDuringConstructionRate
|
0.028 | |
CY2021 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Rate
PublicUtilitiesAllowanceForFundsUsedDuringConstructionRate
|
0.007 | |
CY2023Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
32920000 | usd |
CY2022Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
29270000 | usd |
CY2023Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
49624000 | usd |
CY2022Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
40964000 | usd |
CY2023Q4 | us-gaap |
Unbilled Receivables Current
UnbilledReceivablesCurrent
|
83100000 | usd |
CY2022Q4 | us-gaap |
Unbilled Receivables Current
UnbilledReceivablesCurrent
|
89000000 | usd |
CY2023 | us-gaap |
Utilities Operating Expense Taxes
UtilitiesOperatingExpenseTaxes
|
48700000 | usd |
CY2022 | us-gaap |
Utilities Operating Expense Taxes
UtilitiesOperatingExpenseTaxes
|
41800000 | usd |
CY2021 | us-gaap |
Utilities Operating Expense Taxes
UtilitiesOperatingExpenseTaxes
|
34700000 | usd |
CY2023Q4 | nwn |
Inactive Account Period Outstanding Prior To Write Off
InactiveAccountPeriodOutstandingPriorToWriteOff
|
P120D | |
CY2023Q4 | nwn |
General Payment Term Of Ngd Receivables
GeneralPaymentTermOfNGDReceivables
|
P15D | |
CY2023Q4 | nwn |
Age Of Closed Or Inactive Accounts
AgeOfClosedOrInactiveAccounts
|
P120D | |
CY2021 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
2.56 | |
CY2023Q4 | nwn |
Number Of Net Investments In Sales Type Leases
NumberOfNetInvestmentsInSalesTypeLeases
|
2 | numberofleases |
CY2023Q4 | us-gaap |
Sales Type Lease Net Investment In Lease Allowance For Credit Loss
SalesTypeLeaseNetInvestmentInLeaseAllowanceForCreditLoss
|
0 | usd |
CY2023Q4 | us-gaap |
Inventory Raw Materials And Supplies Net Of Reserves
InventoryRawMaterialsAndSuppliesNetOfReserves
|
25600000 | usd |
CY2022Q4 | us-gaap |
Inventory Raw Materials And Supplies Net Of Reserves
InventoryRawMaterialsAndSuppliesNetOfReserves
|
23500000 | usd |
CY2023Q4 | nwn |
Inventory Emissions Allowances
InventoryEmissionsAllowances
|
39300000 | usd |
CY2023Q4 | nwn |
Cci Deferred Costs
CCIDeferredCosts
|
20500000 | usd |
CY2023Q4 | us-gaap |
Goodwill
Goodwill
|
163300000 | usd |
CY2022Q4 | us-gaap |
Goodwill
Goodwill
|
149300000 | usd |
CY2023Q4 | us-gaap |
Goodwill And Intangible Asset Impairment
GoodwillAndIntangibleAssetImpairment
|
0 | usd |
CY2023Q4 | us-gaap |
Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued
UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued
|
0 | usd |
CY2023 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
93868000 | usd |
CY2022 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
86303000 | usd |
CY2021 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
78666000 | usd |
CY2023 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
36213000 | shares |
CY2022 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
33934000 | shares |
CY2021 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
30702000 | shares |
CY2023 | us-gaap |
Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
|
52000 | shares |
CY2022 | us-gaap |
Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
|
50000 | shares |
CY2021 | us-gaap |
Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
|
50000 | shares |
CY2023 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
36265000 | shares |
CY2022 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
33984000 | shares |
CY2021 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
30752000 | shares |
CY2023 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
2.59 | |
CY2022 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
2.54 | |
CY2023 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
2.59 | |
CY2022 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
2.54 | |
CY2021 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
2.56 | |
CY2023 | us-gaap |
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
|
1000 | shares |
CY2022 | us-gaap |
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
|
2000 | shares |
CY2021 | us-gaap |
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
|
7000 | shares |
CY2022Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
100000000 | shares |
CY2023Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
100000000 | shares |
CY2023 | us-gaap |
Revenue From Contract With Customer Including Assessed Tax
RevenueFromContractWithCustomerIncludingAssessedTax
|
1173227000 | usd |
CY2023Q4 | nwn |
Revenue Over Time Performance Obligation Number
RevenueOverTimePerformanceObligationNumber
|
1 | performanceobligations |
CY2023Q4 | us-gaap |
Lessor Sales Type Lease Term Of Contract1
LessorSalesTypeLeaseTermOfContract1
|
P30Y | |
CY2023Q4 | us-gaap |
Lessor Sales Type Lease Renewal Term1
LessorSalesTypeLeaseRenewalTerm1
|
P50Y | |
CY2023Q4 | us-gaap |
Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
|
19900000 | usd |
CY2023Q4 | us-gaap |
Lessor Sales Type Lease Term Of Contract1
LessorSalesTypeLeaseTermOfContract1
|
P30Y | |
CY2023Q4 | us-gaap |
Lessor Sales Type Lease Renewal Term1
LessorSalesTypeLeaseRenewalTerm1
|
P50Y | |
CY2023 | us-gaap |
Lease Income
LeaseIncome
|
16050000 | usd |
CY2022 | us-gaap |
Lease Income
LeaseIncome
|
17193000 | usd |
CY2021 | us-gaap |
Lease Income
LeaseIncome
|
17551000 | usd |
CY2023Q4 | us-gaap |
Lessor Operating Lease Payments To Be Received Next Twelve Months
LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths
|
655000 | usd |
CY2023Q4 | nwn |
Lease Paymentstobe Received Nexttwelvemonths
LeasePaymentstobeReceivedNexttwelvemonths
|
16522000 | usd |
CY2023Q4 | us-gaap |
Lessor Operating Lease Payments To Be Received Two Years
LessorOperatingLeasePaymentsToBeReceivedTwoYears
|
652000 | usd |
CY2023Q4 | nwn |
Lease Paymentstobe Received Two Years
LeasePaymentstobeReceivedTwoYears
|
15958000 | usd |
CY2023Q4 | us-gaap |
Lessor Operating Lease Payments To Be Received Three Years
LessorOperatingLeasePaymentsToBeReceivedThreeYears
|
92000 | usd |
CY2023Q4 | nwn |
Lease Paymentstobe Received Three Years
LeasePaymentstobeReceivedThreeYears
|
14993000 | usd |
CY2023Q4 | us-gaap |
Lessor Operating Lease Payments To Be Received Four Years
LessorOperatingLeasePaymentsToBeReceivedFourYears
|
79000 | usd |
CY2023Q4 | nwn |
Lease Paymentstobe Received Four Years
LeasePaymentstobeReceivedFourYears
|
14600000 | usd |
CY2023Q4 | us-gaap |
Lessor Operating Lease Payments To Be Received Five Years
LessorOperatingLeasePaymentsToBeReceivedFiveYears
|
58000 | usd |
CY2023Q4 | nwn |
Lease Paymentstobe Received Five Years
LeasePaymentstobeReceivedFiveYears
|
14041000 | usd |
CY2023Q4 | us-gaap |
Lessor Operating Lease Payments To Be Received Thereafter
LessorOperatingLeasePaymentsToBeReceivedThereafter
|
800000 | usd |
CY2023Q4 | nwn |
Lease Paymentstobe Received Thereafter
LeasePaymentstobeReceivedThereafter
|
209116000 | usd |
CY2023Q4 | us-gaap |
Lessor Operating Lease Payments To Be Received
LessorOperatingLeasePaymentsToBeReceived
|
2336000 | usd |
CY2023Q4 | nwn |
Lease Paymentstobe Received
LeasePaymentstobeReceived
|
285230000 | usd |
CY2023Q4 | us-gaap |
Residual Value Of Leased Asset
ResidualValueOfLeasedAsset
|
5500000 | usd |
CY2022Q4 | us-gaap |
Residual Value Of Leased Asset
ResidualValueOfLeasedAsset
|
5100000 | usd |
CY2023 | us-gaap |
Operating Lease Expense
OperatingLeaseExpense
|
7420000 | usd |
CY2023 | us-gaap |
Short Term Lease Cost
ShortTermLeaseCost
|
925000 | usd |
CY2022 | us-gaap |
Operating Lease Expense
OperatingLeaseExpense
|
7034000 | usd |
CY2022 | us-gaap |
Short Term Lease Cost
ShortTermLeaseCost
|
880000 | usd |
CY2021 | us-gaap |
Operating Lease Expense
OperatingLeaseExpense
|
6917000 | usd |
CY2021 | us-gaap |
Short Term Lease Cost
ShortTermLeaseCost
|
1220000 | usd |
CY2023Q4 | us-gaap |
Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
|
71308000 | usd |
CY2023Q4 | us-gaap |
Operating Lease Liability Current
OperatingLeaseLiabilityCurrent
|
2333000 | usd |
CY2023Q4 | us-gaap |
Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
|
77167000 | usd |
CY2023Q4 | us-gaap |
Operating Lease Liability
OperatingLeaseLiability
|
79500000 | usd |
CY2022Q4 | us-gaap |
Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
|
73429000 | usd |
CY2022Q4 | us-gaap |
Operating Lease Liability Current
OperatingLeaseLiabilityCurrent
|
1514000 | usd |
CY2022Q4 | us-gaap |
Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
|
78965000 | usd |
CY2022Q4 | us-gaap |
Operating Lease Liability
OperatingLeaseLiability
|
80479000 | usd |
CY2023Q4 | us-gaap |
Operating Lease Weighted Average Remaining Lease Term1
OperatingLeaseWeightedAverageRemainingLeaseTerm1
|
P16Y2M12D | |
CY2022Q4 | us-gaap |
Operating Lease Weighted Average Remaining Lease Term1
OperatingLeaseWeightedAverageRemainingLeaseTerm1
|
P17Y2M12D | |
CY2023Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Next Twelve Months
LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
|
7667000 | usd |
CY2023Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Two
LesseeOperatingLeaseLiabilityPaymentsDueYearTwo
|
7538000 | usd |
CY2023Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Three
LesseeOperatingLeaseLiabilityPaymentsDueYearThree
|
7514000 | usd |
CY2023Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Four
LesseeOperatingLeaseLiabilityPaymentsDueYearFour
|
7645000 | usd |
CY2023Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Five
LesseeOperatingLeaseLiabilityPaymentsDueYearFive
|
7725000 | usd |
CY2023Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due After Year Five
LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive
|
101278000 | usd |
CY2023Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due
LesseeOperatingLeaseLiabilityPaymentsDue
|
139367000 | usd |
CY2023Q4 | us-gaap |
Lessee Operating Lease Liability Undiscounted Excess Amount
LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
|
59867000 | usd |
CY2023Q4 | us-gaap |
Operating Lease Liability
OperatingLeaseLiability
|
79500000 | usd |
CY2023Q4 | us-gaap |
Operating Lease Liability Current
OperatingLeaseLiabilityCurrent
|
2333000 | usd |
CY2023Q4 | us-gaap |
Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
|
77167000 | usd |
CY2023Q4 | us-gaap |
Finance Lease Liability Payments Due
FinanceLeaseLiabilityPaymentsDue
|
0 | usd |
CY2023 | us-gaap |
Operating Lease Payments
OperatingLeasePayments
|
7610000 | usd |
CY2023 | us-gaap |
Finance Lease Principal Payments
FinanceLeasePrincipalPayments
|
369000 | usd |
CY2023 | us-gaap |
Right Of Use Asset Obtained In Exchange For Operating Lease Liability
RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
|
659000 | usd |
CY2023 | us-gaap |
Right Of Use Asset Obtained In Exchange For Finance Lease Liability
RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability
|
470000 | usd |
CY2022 | us-gaap |
Operating Lease Payments
OperatingLeasePayments
|
7057000 | usd |
CY2022 | us-gaap |
Finance Lease Principal Payments
FinanceLeasePrincipalPayments
|
524000 | usd |
CY2022 | us-gaap |
Right Of Use Asset Obtained In Exchange For Operating Lease Liability
RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
|
977000 | usd |
CY2022 | us-gaap |
Right Of Use Asset Obtained In Exchange For Finance Lease Liability
RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability
|
270000 | usd |
CY2021 | us-gaap |
Operating Lease Payments
OperatingLeasePayments
|
6898000 | usd |
CY2021 | us-gaap |
Finance Lease Principal Payments
FinanceLeasePrincipalPayments
|
801000 | usd |
CY2021 | us-gaap |
Right Of Use Asset Obtained In Exchange For Operating Lease Liability
RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
|
223000 | usd |
CY2021 | us-gaap |
Right Of Use Asset Obtained In Exchange For Finance Lease Liability
RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability
|
314000 | usd |
CY2023Q4 | us-gaap |
Finance Lease Liability Payments Due
FinanceLeaseLiabilityPaymentsDue
|
0 | usd |
CY2023 | nwn |
Insurance Proceeds Amortization Period
InsuranceProceedsAmortizationPeriod
|
P10Y6M | |
CY2023Q4 | nwn |
Insurance Proceeds Applied To Prudently Incurred Remediation Costs
InsuranceProceedsAppliedToPrudentlyIncurredRemediationCosts
|
3900000 | usd |
CY2023 | nwn |
Cost Recovery Period
CostRecoveryPeriod
|
P3Y | |
CY2023 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
|
872000 | usd |
CY2022 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
|
762000 | usd |
CY2021 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
|
866000 | usd |
CY2023 | us-gaap |
Allocated Share Based Compensation Expense Net Of Tax
AllocatedShareBasedCompensationExpenseNetOfTax
|
2421000 | usd |
CY2022 | us-gaap |
Allocated Share Based Compensation Expense Net Of Tax
AllocatedShareBasedCompensationExpenseNetOfTax
|
2115000 | usd |
CY2021 | us-gaap |
Allocated Share Based Compensation Expense Net Of Tax
AllocatedShareBasedCompensationExpenseNetOfTax
|
2406000 | usd |
CY2023 | us-gaap |
Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount
EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount
|
305000 | usd |
CY2022 | us-gaap |
Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount
EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount
|
351000 | usd |
CY2021 | us-gaap |
Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount
EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount
|
344000 | usd |
CY2023 | nwn |
Commercial Paper Maximum Maturity
CommercialPaperMaximumMaturity
|
P5D | |
CY2023 | nwn |
Commercial Paper Average Maturity
CommercialPaperAverageMaturity
|
P4D | |
CY2023Q4 | us-gaap |
Other Long Term Debt
OtherLongTermDebt
|
6600000 | usd |
CY2022Q4 | us-gaap |
Other Long Term Debt
OtherLongTermDebt
|
6200000 | usd |
CY2023Q4 | us-gaap |
Debt Instrument Carrying Amount
DebtInstrumentCarryingAmount
|
1586300000 | usd |
CY2022Q4 | us-gaap |
Debt Instrument Carrying Amount
DebtInstrumentCarryingAmount
|
1345900000 | usd |
CY2023Q4 | us-gaap |
Unamortized Debt Issuance Expense
UnamortizedDebtIssuanceExpense
|
10000000.0 | usd |
CY2022Q4 | us-gaap |
Unamortized Debt Issuance Expense
UnamortizedDebtIssuanceExpense
|
9000000.0 | usd |
CY2023Q4 | nwn |
Long Term Debt Current Maturities Gross
LongTermDebtCurrentMaturitiesGross
|
150900000 | usd |
CY2022Q4 | nwn |
Long Term Debt Current Maturities Gross
LongTermDebtCurrentMaturitiesGross
|
90700000 | usd |
CY2023Q4 | us-gaap |
Long Term Debt Noncurrent
LongTermDebtNoncurrent
|
1425400000 | usd |
CY2022Q4 | us-gaap |
Long Term Debt Noncurrent
LongTermDebtNoncurrent
|
1246200000 | usd |
CY2023Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Next Twelve Months
LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
|
150868000 | usd |
CY2023Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Two
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
|
30824000 | usd |
CY2023Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Three
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
|
110852000 | usd |
CY2023Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Four
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
|
65581000 | usd |
CY2023Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Five
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive
|
10866000 | usd |
CY2023Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal After Year Five
LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive
|
1217353000 | usd |
CY2022Q4 | us-gaap |
Short Term Borrowings
ShortTermBorrowings
|
258200000 | usd |
CY2023Q4 | us-gaap |
Debt Instrument Carrying Amount
DebtInstrumentCarryingAmount
|
1586344000 | usd |
CY2022Q4 | us-gaap |
Debt Instrument Carrying Amount
DebtInstrumentCarryingAmount
|
1345851000 | usd |
CY2023Q4 | us-gaap |
Unamortized Debt Issuance Expense
UnamortizedDebtIssuanceExpense
|
10044000 | usd |
CY2022Q4 | us-gaap |
Unamortized Debt Issuance Expense
UnamortizedDebtIssuanceExpense
|
8987000 | usd |
CY2023Q4 | us-gaap |
Long Term Debt
LongTermDebt
|
1576300000 | usd |
CY2022Q4 | us-gaap |
Long Term Debt
LongTermDebt
|
1336864000 | usd |
CY2023Q4 | us-gaap |
Debt Instrument Fair Value
DebtInstrumentFairValue
|
1447941000 | usd |
CY2022Q4 | us-gaap |
Debt Instrument Fair Value
DebtInstrumentFairValue
|
1148395000 | usd |
CY2023Q4 | us-gaap |
Defined Benefit Plan Ultimate Health Care Cost Trend Rate1
DefinedBenefitPlanUltimateHealthCareCostTrendRate1
|
0.0400 | |
CY2023 | us-gaap |
Defined Benefit Plan Year Health Care Cost Trend Rate Reaches Ultimate Trend Rate
DefinedBenefitPlanYearHealthCareCostTrendRateReachesUltimateTrendRate
|
2029 | |
CY2023 | us-gaap |
Pension And Other Postretirement Benefit Contributions
PensionAndOtherPostretirementBenefitContributions
|
0 | usd |
CY2023Q4 | us-gaap |
Defined Benefit Plan Expected Future Employer Contributions Next Fiscal Year
DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear
|
20600000 | usd |
CY2023Q4 | nwn |
Pension Plan Withdrawal Liability Payments
PensionPlanWithdrawalLiabilityPayments
|
P20Y | |
CY2022 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
11124000 | usd |
CY2021 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
8289000 | usd |
CY2023 | us-gaap |
Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
|
26508000 | usd |
CY2022 | us-gaap |
Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
|
24241000 | usd |
CY2021 | us-gaap |
Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
|
22275000 | usd |
CY2023 | us-gaap |
Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
|
10875000 | usd |
CY2022 | us-gaap |
Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
|
10139000 | usd |
CY2021 | us-gaap |
Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
|
9962000 | usd |
CY2023 | nwn |
Other Tax Expense Benefit Differences To Be Flowed Through By Regulatory Commissions
OtherTaxExpenseBenefitDifferencesToBeFlowedThroughByRegulatoryCommissions
|
-3976000 | usd |
CY2022 | nwn |
Other Tax Expense Benefit Differences To Be Flowed Through By Regulatory Commissions
OtherTaxExpenseBenefitDifferencesToBeFlowedThroughByRegulatoryCommissions
|
-4748000 | usd |
CY2021 | nwn |
Other Tax Expense Benefit Differences To Be Flowed Through By Regulatory Commissions
OtherTaxExpenseBenefitDifferencesToBeFlowedThroughByRegulatoryCommissions
|
-4655000 | usd |
CY2023 | us-gaap |
Income Tax Reconciliation Other Adjustments
IncomeTaxReconciliationOtherAdjustments
|
-1045000 | usd |
CY2022 | us-gaap |
Income Tax Reconciliation Other Adjustments
IncomeTaxReconciliationOtherAdjustments
|
-502000 | usd |
CY2021 | us-gaap |
Income Tax Reconciliation Other Adjustments
IncomeTaxReconciliationOtherAdjustments
|
-176000 | usd |
CY2023 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
32362000 | usd |
CY2022 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
29130000 | usd |
CY2021 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
27406000 | usd |
CY2023 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.256 | |
CY2022 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.252 | |
CY2021 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.258 | |
CY2023 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
13496000 | usd |
CY2022 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
5172000 | usd |
CY2021 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
6508000 | usd |
CY2023 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
9901000 | usd |
CY2022 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
6551000 | usd |
CY2021 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
6281000 | usd |
CY2023 | us-gaap |
Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
|
23397000 | usd |
CY2022 | us-gaap |
Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
|
11723000 | usd |
CY2021 | us-gaap |
Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
|
12789000 | usd |
CY2023 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
5100000 | usd |
CY2023 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
|
3865000 | usd |
CY2022 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
|
6283000 | usd |
CY2021 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
|
6328000 | usd |
CY2023 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
8965000 | usd |
CY2022 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
17407000 | usd |
CY2021 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
14617000 | usd |
CY2023 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
32362000 | usd |
CY2022 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
29130000 | usd |
CY2021 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
27406000 | usd |
CY2023Q4 | us-gaap |
Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
|
350802000 | usd |
CY2022Q4 | us-gaap |
Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
|
326326000 | usd |
CY2023Q4 | us-gaap |
Deferred Tax Liabilities Leasing Arrangements
DeferredTaxLiabilitiesLeasingArrangements
|
35635000 | usd |
CY2022Q4 | us-gaap |
Deferred Tax Liabilities Leasing Arrangements
DeferredTaxLiabilitiesLeasingArrangements
|
36873000 | usd |
CY2023Q4 | nwn |
Deferred Tax Liabilities Lease Right Of Use Assets
DeferredTaxLiabilitiesLeaseRightOfUseAssets
|
21002000 | usd |
CY2022Q4 | nwn |
Deferred Tax Liabilities Lease Right Of Use Assets
DeferredTaxLiabilitiesLeaseRightOfUseAssets
|
21272000 | usd |
CY2023Q4 | us-gaap |
Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets
DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets
|
528000 | usd |
CY2022Q4 | us-gaap |
Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets
DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets
|
0 | usd |
CY2023Q4 | us-gaap |
Deferred Tax Liabilities Other
DeferredTaxLiabilitiesOther
|
4432000 | usd |
CY2022Q4 | us-gaap |
Deferred Tax Liabilities Other
DeferredTaxLiabilitiesOther
|
17050000 | usd |
CY2023Q4 | us-gaap |
Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
|
450168000 | usd |
CY2022Q4 | us-gaap |
Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
|
437646000 | usd |
CY2023Q4 | nwn |
Deferred Tax Assets Lease Liabilities
DeferredTaxAssetsLeaseLiabilities
|
21047000 | usd |
CY2022Q4 | nwn |
Deferred Tax Assets Lease Liabilities
DeferredTaxAssetsLeaseLiabilities
|
21306000 | usd |
CY2023Q4 | us-gaap |
Deferred Tax Assets Goodwill And Intangible Assets
DeferredTaxAssetsGoodwillAndIntangibleAssets
|
0 | usd |
CY2022Q4 | us-gaap |
Deferred Tax Assets Goodwill And Intangible Assets
DeferredTaxAssetsGoodwillAndIntangibleAssets
|
1947000 | usd |
CY2023Q4 | us-gaap |
Deferred Tax Assets Tax Credit Carryforwards Other
DeferredTaxAssetsTaxCreditCarryforwardsOther
|
76000 | usd |
CY2022Q4 | us-gaap |
Deferred Tax Assets Tax Credit Carryforwards Other
DeferredTaxAssetsTaxCreditCarryforwardsOther
|
101000 | usd |
CY2023Q4 | us-gaap |
Deferred Tax Assets Net
DeferredTaxAssetsNet
|
67495000 | usd |
CY2022Q4 | us-gaap |
Deferred Tax Assets Net
DeferredTaxAssetsNet
|
71624000 | usd |
CY2023Q4 | us-gaap |
Deferred Tax Liabilities
DeferredTaxLiabilities
|
382673000 | usd |
CY2022Q4 | us-gaap |
Deferred Tax Liabilities
DeferredTaxLiabilities
|
366022000 | usd |
CY2023Q4 | us-gaap |
Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax
DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax
|
56000 | usd |
CY2021Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
0 | usd |
CY2023Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
0 | usd |
CY2022Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
0 | usd |
CY2023Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
3358054000 | usd |
CY2022Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
3114400000 | usd |
CY2023Q4 | nwn |
Property Plant Equipmentnoncash
PropertyPlantEquipmentnoncash
|
27879000 | usd |
CY2022Q4 | nwn |
Property Plant Equipmentnoncash
PropertyPlantEquipmentnoncash
|
25318000 | usd |
CY2023Q4 | us-gaap |
Life Insurance Corporate Or Bank Owned Amount
LifeInsuranceCorporateOrBankOwnedAmount
|
45713000 | usd |
CY2022Q4 | us-gaap |
Life Insurance Corporate Or Bank Owned Amount
LifeInsuranceCorporateOrBankOwnedAmount
|
49358000 | usd |
CY2023Q4 | us-gaap |
Inventory Gas In Storage Underground Noncurrent
InventoryGasInStorageUndergroundNoncurrent
|
20893000 | usd |
CY2022Q4 | us-gaap |
Inventory Gas In Storage Underground Noncurrent
InventoryGasInStorageUndergroundNoncurrent
|
22970000 | usd |
CY2023Q4 | us-gaap |
Equity Method Investment Aggregate Cost
EquityMethodInvestmentAggregateCost
|
36345000 | usd |
CY2022Q4 | us-gaap |
Equity Method Investment Aggregate Cost
EquityMethodInvestmentAggregateCost
|
23376000 | usd |
CY2023Q4 | us-gaap |
Other Long Term Investments
OtherLongTermInvestments
|
102951000 | usd |
CY2022Q4 | us-gaap |
Other Long Term Investments
OtherLongTermInvestments
|
95704000 | usd |
CY2023Q4 | nwn |
Total Cumulative Gas Reserves Investment
TotalCumulativeGasReservesInvestment
|
188000000 | usd |
CY2023Q4 | nwn |
Investments Number Of Rng Development Projects
InvestmentsNumberOfRNGDevelopmentProjects
|
4 | numberofprojects |
CY2023 | us-gaap |
Business Combination Consideration Transferred1
BusinessCombinationConsiderationTransferred1
|
22800000 | usd |
CY2023 | nwn |
Average Annual System Operating Revenue Multiplier Contingent Consideration
AverageAnnualSystemOperatingRevenueMultiplierContingentConsideration
|
4 | multiplier |
CY2023Q4 | us-gaap |
Goodwill
Goodwill
|
163300000 | usd |
CY2022Q4 | us-gaap |
Goodwill
Goodwill
|
149300000 | usd |
CY2023 | us-gaap |
Goodwill Impairment Loss
GoodwillImpairmentLoss
|
0 | usd |
CY2023Q4 | us-gaap |
Derivative Credit Risk Valuation Adjustment Derivative Liabilities
DerivativeCreditRiskValuationAdjustmentDerivativeLiabilities
|
700000 | usd |
CY2023Q4 | us-gaap |
Derivative Fair Value Of Derivative Net
DerivativeFairValueOfDerivativeNet
|
-115200000 | usd |
CY2022Q4 | us-gaap |
Derivative Fair Value Of Derivative Net
DerivativeFairValueOfDerivativeNet
|
149700000 | usd |
CY2023Q4 | us-gaap |
Aoci Loss Cash Flow Hedge Cumulative Gain Loss After Tax
AociLossCashFlowHedgeCumulativeGainLossAfterTax
|
200000 | usd |
CY2022Q4 | us-gaap |
Aoci Loss Cash Flow Hedge Cumulative Gain Loss After Tax
AociLossCashFlowHedgeCumulativeGainLossAfterTax
|
100000 | usd |
CY2023 | us-gaap |
Derivative Instruments Gain Reclassified From Accumulated Oci Into Income Effective Portion
DerivativeInstrumentsGainReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortion
|
0 | usd |
CY2023 | nwn |
Total Dividends Paid To Registrant Consolidated Subsidiaries
TotalDividendsPaidToRegistrantConsolidatedSubsidiaries
|
95700000 | usd |
CY2022 | nwn |
Total Dividends Paid To Registrant Consolidated Subsidiaries
TotalDividendsPaidToRegistrantConsolidatedSubsidiaries
|
62700000 | usd |
CY2021 | nwn |
Total Dividends Paid To Registrant Consolidated Subsidiaries
TotalDividendsPaidToRegistrantConsolidatedSubsidiaries
|
82100000 | usd |
CY2022Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
|
3296000 | usd |
CY2023 | us-gaap |
Valuation Allowances And Reserves Charged To Cost And Expense
ValuationAllowancesAndReservesChargedToCostAndExpense
|
2869000 | usd |
CY2023 | us-gaap |
Valuation Allowances And Reserves Charged To Other Accounts
ValuationAllowancesAndReservesChargedToOtherAccounts
|
263000 | usd |
CY2023 | us-gaap |
Valuation Allowances And Reserves Deductions
ValuationAllowancesAndReservesDeductions
|
2973000 | usd |
CY2023Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
|
3455000 | usd |
CY2021Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
|
2018000 | usd |
CY2022 | us-gaap |
Valuation Allowances And Reserves Charged To Cost And Expense
ValuationAllowancesAndReservesChargedToCostAndExpense
|
1081000 | usd |
CY2022 | us-gaap |
Valuation Allowances And Reserves Charged To Other Accounts
ValuationAllowancesAndReservesChargedToOtherAccounts
|
1810000 | usd |
CY2022 | us-gaap |
Valuation Allowances And Reserves Deductions
ValuationAllowancesAndReservesDeductions
|
1613000 | usd |
CY2022Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
|
3296000 | usd |
CY2020Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
|
3219000 | usd |
CY2021 | us-gaap |
Valuation Allowances And Reserves Charged To Cost And Expense
ValuationAllowancesAndReservesChargedToCostAndExpense
|
724000 | usd |
CY2021 | us-gaap |
Valuation Allowances And Reserves Charged To Other Accounts
ValuationAllowancesAndReservesChargedToOtherAccounts
|
-219000 | usd |
CY2021 | us-gaap |
Valuation Allowances And Reserves Deductions
ValuationAllowancesAndReservesDeductions
|
1706000 | usd |
CY2021Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
|
2018000 | usd |
CY2023Q4 | us-gaap |
Short Term Borrowings
ShortTermBorrowings
|
89800000 | usd |