Lease Payments to be Received

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- Definition

Lease Payments to be Received, Five Years

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No definition available.

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- Definition

Lease Payments to be Received, Four Years

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- Definition

Lease Payments to be Received, Next twelve months

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No definition available.

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- Definition

Lease Payments to be Received, Thereafter

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- Definition

Lease Payments to be Received, Three Years

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- Definition

Lease Payments to be Received, Two Years

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- Definition

Lease Revenue [Abstract]

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No definition available.

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- Definition

Operating Leases Payment to be Received [Abstract]

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- Definition

Sales-type Leases Payments to be Received [Abstract]

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- Definition

Total Lease Payments to be Received [Abstract]

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- Definition

Amount of lease income from operating, direct financing, and sales-type leases. Includes, but is not limited to, variable lease payments, interest income, profit (loss) recognized at commencement, and lease payments paid and payable to lessor.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479773/842-30-50-5

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 30
-Name Accounting Standards Codification
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-Publisher FASB
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- Definition

Amount of lease payments to be received by lessor for operating lease.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 12
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479773/842-30-50-12

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- Definition

Amount of lease payment to be received by lessor for operating lease in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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- Definition

Amount of lease payment to be received by lessor for operating lease in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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- Definition

Amount of lease payment to be received by lessor for operating lease in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

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- Definition

Amount of lease payment to be received by lessor for operating lease after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

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- Definition

Amount of lease payment to be received by lessor for operating lease in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

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- Definition

Amount of lease payment to be received by lessor for operating lease in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

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- Definition

Term of lessor's sales-type lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479773/842-30-50-3

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- Definition

Term of lessor's sales-type lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Indicates line item in statement of comprehensive income that includes operating lease income.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479016/842-30-45-3

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- Definition

Disclosure of the unamortized amount of the discount on the note or receivable which is deducted from the face amount of the receivable or loan. The discount or premium is the difference between the present value and the face amount.

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The receivable or note face amount less the unamortized discount or premium.

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- Definition

Amount of residual asset covered by residual value guarantee. Excludes guarantee considered to be lease payments for lessor.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-SubTopic 30
-Name Accounting Standards Codification
-Section 50
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Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-SubTopic 30
-Name Accounting Standards Codification
-Section 50
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- Definition

Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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- Definition

Indicates line item in statement of comprehensive income that includes sales-type lease income.

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Amount of cash outflow for variable lease payment excluded from lease liability.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 5
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479041/842-20-45-5

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Leases - Lease Revenue (Details) - USD ($)	12 Months Ended
Leases - Lease Revenue (Details) - USD ($)	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Lessor, Lease, Description [Line Items]
Lessor, Sales-type Lease, Term of Contract	30 years
Lessor, Sales-type Lease, Renewal Term	50 years
Residual Value of Leased Asset	$ 5,500,000	$ 5,100,000
Lease Revenue [Abstract]
Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration]	Operating revenues	Operating revenues	Operating revenues
Sales-Type Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration]	Operating revenues	Operating revenues	Operating revenues
Lease Income	$ 16,050,000	$ 17,193,000	$ 17,551,000
Operating Leases Payment to be Received [Abstract]
Lessor, Operating Lease, Payments to be Received, Next Twelve Months	655,000
Lessor, Operating Lease, Payments to be Received, Two Years	652,000
Lessor, Operating Lease, Payments to be Received, Three Years	92,000
Lessor, Operating Lease, Payments to be Received, Four Years	79,000
Lessor, Operating Lease, Payments to be Received, Five Years	58,000
Lessor, Operating Lease, Payments to be Received, Thereafter	800,000
Lessor, Operating Lease, Payments to be Received	2,336,000
Total Lease Payments to be Received [Abstract]
Lease Payments to be Received, Next twelve months	16,522,000
Lease Payments to be Received, Two Years	15,958,000
Lease Payments to be Received, Three Years	14,993,000
Lease Payments to be Received, Four Years	14,600,000
Lease Payments to be Received, Five Years	14,041,000
Lease Payments to be Received, Thereafter	209,116,000
Lease Payments to be Received	285,230,000
Northwest Natural Gas Company [Member]
Operating Leases Payment to be Received [Abstract]
Lessor, Operating Lease, Payments to be Received, Next Twelve Months	603,000
Lessor, Operating Lease, Payments to be Received, Two Years	599,000
Lessor, Operating Lease, Payments to be Received, Three Years	36,000
Lessor, Operating Lease, Payments to be Received, Four Years	22,000
Lessor, Operating Lease, Payments to be Received, Five Years	0
Lessor, Operating Lease, Payments to be Received, Thereafter	0
Lessor, Operating Lease, Payments to be Received	1,260,000
Total Lease Payments to be Received [Abstract]
Lease Payments to be Received, Next twelve months	16,470,000
Lease Payments to be Received, Two Years	15,905,000
Lease Payments to be Received, Three Years	14,937,000
Lease Payments to be Received, Four Years	14,543,000
Lease Payments to be Received, Five Years	13,983,000
Lease Payments to be Received, Thereafter	208,316,000
Lease Payments to be Received	284,154,000
Northwest Holdings Other [Member]
Operating Leases Payment to be Received [Abstract]
Lessor, Operating Lease, Payments to be Received, Next Twelve Months	52,000
Lessor, Operating Lease, Payments to be Received, Two Years	53,000
Lessor, Operating Lease, Payments to be Received, Three Years	56,000
Lessor, Operating Lease, Payments to be Received, Four Years	57,000
Lessor, Operating Lease, Payments to be Received, Five Years	58,000
Lessor, Operating Lease, Payments to be Received, Thereafter	800,000
Lessor, Operating Lease, Payments to be Received	1,076,000
Total Lease Payments to be Received [Abstract]
Lease Payments to be Received, Next twelve months	52,000
Lease Payments to be Received, Two Years	53,000
Lease Payments to be Received, Three Years	56,000
Lease Payments to be Received, Four Years	57,000
Lease Payments to be Received, Five Years	58,000
Lease Payments to be Received, Thereafter	800,000
Lease Payments to be Received	1,076,000
Sales-type Lease [Member]
Sales-type Leases Payments to be Received [Abstract]
Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Next Twelve Months	15,867,000
Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Two Years	15,306,000
Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Three Years	14,901,000
Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Four Years	14,521,000
Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Five Years	13,983,000
Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Thereafter	208,316,000
Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received	282,894,000
Receivable with Imputed Interest, Discount	153,806,000
Receivable with Imputed Interest, Net Amount	129,088,000
Sales-type Lease [Member] \| Northwest Natural Gas Company [Member]
Sales-type Leases Payments to be Received [Abstract]
Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Next Twelve Months	15,867,000
Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Two Years	15,306,000
Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Three Years	14,901,000
Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Four Years	14,521,000
Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Five Years	13,983,000
Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Thereafter	208,316,000
Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received	282,894,000
Receivable with Imputed Interest, Discount	153,806,000
Receivable with Imputed Interest, Net Amount	129,088,000
Sales-type Lease [Member] \| Northwest Holdings Other [Member]
Sales-type Leases Payments to be Received [Abstract]
Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Next Twelve Months	0
Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Two Years	0
Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Three Years	0
Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Four Years	0
Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Five Years	0
Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received, Thereafter	0
Sales-type and Direct Financing Leases, Lease Receivable, Payments to be Received	0
North Mist Lease [Member]
Lessor, Lease, Description [Line Items]
Variable Lease, Payment	0
Residual Value of Leased Asset	$ 0
Compressed Natural Gas Lease [Member]
Lessor, Lease, Description [Line Items]
Lessor, Sales-type Lease, Term of Contract	10 years
Other Nonoperating Income (Expense) [Member]
Lease Revenue [Abstract]
Lease Income	$ 600,000	$ 600,000	$ 500,000