Property, Plant and Equipment (Tables)

6 Months Ended

Jun. 30, 2020

Property, Plant and Equipment [Abstract]

Public Utility Property, Plant, and Equipment [Table Text Block]

The following table sets forth the major classifications of property, plant, and equipment and accumulated depreciation of continuing operations:

	June 30,				December 31,
In thousands	2020		2019		2019
NW Natural:
NGD plant in service	$	3,404,145	$	3,193,121	$	3,302,049
NGD work in progress	90,903		75,045		84,965
Less: Accumulated depreciation	1,040,616		997,111		1,017,931
NGD plant, net	2,454,432		2,271,055		2,369,083
Other plant in service	64,317		63,385		63,513
Other construction work in progress	5,342		5,454		5,548
Less: Accumulated depreciation	19,144		18,650		18,662
Other plant, net	50,515		50,189		50,399
Total property, plant, and equipment	$	2,504,947	$	2,321,244	$	2,419,482
Other (NW Holdings):
Other plant in service	$	44,195	$	18,806	$	20,671
Less: Accumulated depreciation	2,539		424		1,254
Other plant, net	$	41,656	$	18,382	$	19,417
NW Holdings:
Total property, plant, and equipment	$	2,546,603	$	2,339,626	$	2,438,899
NW Natural and NW Holdings:
Capital expenditures in accrued liabilities	$	31,847	$	32,923	$	32,502