Document and Entity Information
Document and Entity Information Document | May 23, 2024 |
Document and Entity Information [Abstract] | |
Entity Emerging Growth Company | false |
Title of 12(b) Security | Common Stock |
Entity File Number | 1-38681 |
Document Type | 8-K |
Document Period End Date | May 23, 2024 |
Entity Registrant Name | NORTHWEST NATURAL HOLDING COMPANY |
Entity Incorporation, State or Country Code | OR |
Entity Tax Identification Number | 82-4710680 |
Entity Address, Address Line One | 250 S.W. Taylor Street |
Entity Address, City or Town | Portland |
Entity Address, State or Province | OR |
Entity Address, Postal Zip Code | 97204 |
City Area Code | (503) |
Local Phone Number | 226-4211 |
Trading Symbol | NWN |
Security Exchange Name | NYSE |
Written Communications | false |
Soliciting Material | false |
Pre-commencement Tender Offer | false |
Pre-commencement Issuer Tender Offer | false |
Entity Central Index Key | 0001733998 |
Amendment Flag | false |
Current Fiscal Year End Date | --12-31 |