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Investments (Tables)
 12 Months Ended
Dec. 31, 2018
Investments [Abstract]  
Schedule Of Long Term Investments
The following table summarizes other investments at December 31:
 
 
NW Holdings
 
NW Natural
In thousands
 
2018
 
2017
 
2018
 
2017
Investments in life insurance policies
 
$
49,922

 
$
50,792

 
$
49,922

 
$
50,792

Investments in gas pipeline
 
13,571

 
13,669

 
—

 
—

Other
 
65

 
1,902

 
—

 
1,862

Total other investments
 
$
63,558

 
$
66,363

 
$
49,922

 
$
52,654