Commercial paper, Average remaining maturity

No definition available.

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- Definition

Commercial paper, Maximum remaining maturity

+ References

No definition available.

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- Definition

Debt Instrument Covenant Consolidated Indebtedness to Capitalization Ratio

+ References

No definition available.

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- Definition

Carrying value as of the balance sheet date of short-term borrowings using unsecured obligations issued by banks, corporations and other borrowers to investors. The maturities of these money market securities generally do not exceed 270 days.

+ References

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-Name Accounting Standards Codification
-Topic 942
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-Section S99
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- Definition

Weighted average interest rate of debt outstanding.

+ References

No definition available.

+ Details

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- Definition

The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
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- Definition

Indebtedness divided by net capital.

+ References

No definition available.

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- Definition

Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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-Publisher FASB
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- Definition

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

+ References

No definition available.

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Debt Short-term Debt (Details) - USD ($) $ in Thousands	6 Months Ended
Debt Short-term Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019
Short-term Debt [Line Items]
Short-term debt	$ 233,000	$ 149,100	$ 20,080
Commercial paper, Maximum remaining maturity	72 days
Commercial paper, Average remaining maturity	54 days
Ratio of Indebtedness to Net Capital	0.573
Northwest Natural Gas Company [Member]
Short-term Debt [Line Items]
Short-term debt	$ 153,000	$ 125,100	$ 0
Commercial Paper	$ 3,000
Ratio of Indebtedness to Net Capital	0.560
Line of Credit [Member]
Short-term Debt [Line Items]
Short-term debt	$ 80,000
364-Day Term Loan, Due 2021 [Member]
Short-term Debt [Line Items]
Debt Instrument Covenant Consolidated Indebtedness to Capitalization Ratio	70.00%
364-Day Term Loan, Due 2021 [Member] \| Northwest Natural Gas Company [Member]
Short-term Debt [Line Items]
Proceeds from Issuance of Debt	$ 150,000
Commercial Paper [Member]
Short-term Debt [Line Items]
Debt, Weighted Average Interest Rate	0.70%