Leases (Tables)

12 Months Ended

Dec. 31, 2023

Leases [Abstract]

Lessee, Leases, Supplemental Cash Flow Information [Table Text Block]

Supplemental cash flow information related to leases was as follows:

	Year ended December 31, 2023
In thousands	NW Natural		Other (NW Holdings)		NW Holdings
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$	7,434	$	176	$	7,610
Finance cash flows from finance leases	369		—		369
Right of use assets obtained in exchange for lease obligations
Operating leases	$	659	$	—	$	659
Finance leases	369		101		470

	Year ended December 31, 2022
In thousands	NW Natural		Other (NW Holdings)		NW Holdings
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$	6,993	$	64	$	7,057
Finance cash flows from finance leases	524		—		524
Right of use assets obtained in exchange for lease obligations
Operating leases	$	309	$	668	$	977
Finance leases	270		—		270

	Year ended December 31, 2021
In thousands	NW Natural		Other (NW Holdings)		NW Holdings
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$	6,840	$	58	$	6,898
Finance cash flows from finance leases	801		—		801
Right of use assets obtained in exchange for lease obligations
Operating leases	$	223	$	—	$	223
Finance leases	314		—		314

Lessee, Operating Lease, Liability, Maturity [Table Text Block]

Maturities of operating lease liabilities at December 31, 2023 were as follows:

In thousands	NW Natural		Other (NW Holdings)		NW Holdings
2024	$	7,484	$	183	$	7,667
2025	7,362		176		7,538
2026	7,361		153		7,514
2027	7,538		107		7,645
2028	7,719		6		7,725
Thereafter	101,272		6		101,278
Total lease payments	138,736		631		139,367
Less: imputed interest	59,851		16		59,867
Total lease obligations	78,885		615		79,500
Less: current obligations	2,128		205		2,333
Long-term lease obligations	$	76,757	$	410	$	77,167

Lease, Cost [Table Text Block]

The components of lease expense, a portion of which is capitalized, were as follows:

	Year ended December 31, 2023
In thousands	NW Natural		Other (NW Holdings)		NW Holdings
Operating lease expense	$	7,244	$	176	$	7,420
Short-term lease expense	925		—		925

	Year ended December 31, 2022
In thousands	NW Natural		Other (NW Holdings)		NW Holdings
Operating lease expense	$	7,003	$	31	$	7,034
Short-term lease expense	880		—		880

	Year ended December 31, 2021
In thousands	NW Natural		Other (NW Holdings)		NW Holdings
Operating lease expense	$	6,859	$	58	$	6,917
Short-term lease expense	1,220		—		1,220

Operating Lease, Lease Income [Table Text Block]

The components of lease revenue at NW Natural were as follows:

	Year ended December 31,
In thousands	2023		2022		2021
Lease revenue
Operating leases	$	76	$	74	$	80
Sales-type leases	15,974		17,119		17,471
Total lease revenue	$	16,050	$	17,193	$	17,551

Lessor, Operating Lease, Payments to be Received, Maturity [Table Text Block]

Total future minimum lease payments to be received under non-cancelable leases at December 31, 2023 are as follows:

In thousands	Operating		Sales-Type		Total
NW Natural:
2024	$	603	$	15,867	$	16,470
2025	599		15,306		15,905
2026	36		14,901		14,937
2027	22		14,521		14,543
2028	—		13,983		13,983
Thereafter	—		208,316		208,316
Total minimum lease payments	$	1,260	282,894		$	284,154
Less: imputed interest			153,806
Total leases receivable			$	129,088
Other NW Holdings:
2024	$	52	$	—	$	52
2025	53		—		53
2026	56		—		56
2027	57		—		57
2028	58		—		58
Thereafter	800		—		800
Total minimum lease payments	$	1,076	$	—	$	1,076
NW Holdings:
2024	$	655	$	15,867	$	16,522
2025	652		15,306		15,958
2026	92		14,901		14,993
2027	79		14,521		14,600
2028	58		13,983		14,041
Thereafter	800		208,316		209,116
Total minimum lease payments	$	2,336	282,894		$	285,230
Less: imputed interest			153,806
Total leases receivable			$	129,088

Operating Lease, Lease Asset and Liabilities [Table Text Block]

Supplemental balance sheet information related to operating leases as of December 31, 2023 is as follows:

In thousands	NW Natural		Other (NW Holdings)		NW Holdings
Operating lease right of use assets	$	70,728	$	580	$	71,308
Operating lease liabilities - current liabilities	$	2,128	$	205	$	2,333
Operating lease liabilities - non-current liabilities	76,757		410		77,167
Total operating lease liabilities	$	78,885	$	615	$	79,500

Supplemental balance sheet information related to operating leases as of December 31, 2022 is as follows:

In thousands	NW Natural		Other (NW Holdings)		NW Holdings
Operating lease right of use assets	$	72,720	$	709	$	73,429
Operating lease liabilities - current liabilities	$	1,363	$	151	$	1,514
Operating lease liabilities - non-current liabilities	78,345		620		78,965
Total operating lease liabilities	$	79,708	$	771	$	80,479