v3.26.1
Nature of Operations and Basis of Consolidation (Details)
Dec. 31, 2025
customers
Number of customers
850,300
X
- Definition
Number Of Customers
+ References
No definition available.
+ Details
Name:
nwe_NumberOfCustomers
Namespace Prefix:
nwe_
Data Type:
xbrli:integerItemType
Balance Type:
na
Period Type:
instant